One-year optical coherence tomography findings in patients with late and very-late stent thrombosis treated with intravascular imaging guided percutaneous coronary intervention
The objective is to describe the 1-year optical coherence tomography (OCT) findings of patients suffering from late/very-late ST treated with intravascular imaging guided percutaneous coronary intervention (PCI). All consecutive patients with late/very-late ST undergoing intravascular imaging guided PCI were screened to undergo coronary angiography and OCT examination at 1  year. Patients were classified according to the observation of stent malapposition as most contributing cause of the ST. Thirty-four patients were included. Stent malapposition was observed in 17 (50%) and the remaining 17 cases were classified as:...
Source: The International Journal of Cardiovascular Imaging - May 22, 2018 Category: Radiology Source Type: research

Differences between first-generation and second-generation drug-eluting stent regarding in-stent neoatherosclerosis characteristics: an optical coherence tomography analysis
AbstractWe compared first-generation and second-generation drug-eluting stent (DES) with respect to neoatherosclerosis using optical coherence tomography or optical frequency domain imaging. In-stent restenoses in 102 first-generation and 114 second-generation DES were retrospectively assessed. Neoatherosclerosis, which was defined as the presence of lipid-laden neointima or calcification inside a stent, was observed in 33 (27.2%) and 31 (32.4%) lesions in the first-generation and second-generation DES respectively. In the first-generation DES group, the lipid length was significantly longer (5.5  ± 3....
Source: The International Journal of Cardiovascular Imaging - May 21, 2018 Category: Radiology Source Type: research

Clinical outcomes of complete revascularization using either angiography-guided or fractional flow reserve-guided drug-eluting stent implantation in non-culprit vessels in ST elevation myocardial infarction patients: insights from a study based on a systematic review and meta-analysis
AbstractCurrent guidelines recommend that percutaneous coronary intervention (PCI) should be restricted to the culprit vessel in ST elevation myocardial infarction (STEMI) patients with multi-vessel disease (MVD) and without cardiogenic shock. However, newer data suggests that performing complete revascularization (CR) in MVD patients may lead to better outcomes compared to intervention in the culprit vessel only. The aim of this meta-analysis is to examine the available data to determine if CR (using either angio- or fractional flow reserve guidance —FFR) following primary PCI in STEMI patients without cardiogenic s...
Source: The International Journal of Cardiovascular Imaging - May 19, 2018 Category: Radiology Source Type: research

Diagnostic value of myocardial deformation pattern in children with noncompaction cardiomyopathy
We describe left ventricular (LV) deformation patterns in children with NCC, with the goal of identifying a potential diagnostic pattern. We prospectively enrolled 30 children with NCC (47% male; mean age 7.2  years) and 30 age- and gender-matched controls. Extent and severity of non compaction in each segment were evaluated in LV 16-segment model. Regional (base, mid and apex) and segmental (16 segments) longitudinal strain (LS), circumferential strain (CS) and radial strain (RS) were measured using sp eckle tracking echocardiography. In all patients with NCC, regional and segmental CS and RS at the apex were signifi...
Source: The International Journal of Cardiovascular Imaging - May 16, 2018 Category: Radiology Source Type: research

A New modified anthropometric haller index obtained without radiological exposure
AbstractTo validate a new modified method for measuring the anthropometric Haller index (HI), obtained without radiological exposure. This new method was based on the use of a rigid ruler and of a 2.5  MHz ultrasound transducer for the assessment of latero-lateral and antero-posterior chest diameters, respectively. We enrolled 100 consecutive patients (mean age 67.9 ± 14.5 years, 55% males), who underwent a two-plane CXR, for any clinical indication, over a four-month period. In all patien ts, the same radiologist calculated the conventional radiological HI (mean value 1.93 ±&th...
Source: The International Journal of Cardiovascular Imaging - May 15, 2018 Category: Radiology Source Type: research

Patient-related factors influencing detectability of coronary arteries in 320-row CT angiography in infants with complex congenital heart disease
AbstractTo investigate the performance of second-generation 320-row computed tomographic (CT) angiography (CTA) in detecting coronary arteries and identify factors influencing visibility of the coronary arteries in infants with complex congenital heart disease (CHD). Data of 60 infants (aged 0 –2 years, median 2 months) with complex CHD who underwent examination using 320-row CTA with low-dose prospective electrocardiogram-triggered volume target scanning were reviewed. The coronary arteries of each infant were assessed using a 0–4-point scoring system based on the number of coronary segments with a visibl...
Source: The International Journal of Cardiovascular Imaging - May 5, 2018 Category: Radiology Source Type: research

Myocardial perfusion reserve and global longitudinal strain as potential markers of coronary allograft vasculopathy in late-stage orthotopic heart transplantation
In conclusion, MPRi and GLS are abnormal in late-stage OHT and ass ociated with CAV, but not related to allograft rejection, myocardial scar/fibrosis, or allograft dysfunction. Non-invasive monitoring of MPRi and GLS may be a useful strategy to detect CAV. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - May 4, 2018 Category: Radiology Source Type: research

Electrocardiography based prediction of hypertrophy pattern and fibrosis amount in hypertrophic cardiomyopathy: comparative study with cardiac magnetic resonance imaging
AbstractAlthough, cardiac magnetic resonance imaging (CMR) is a gold standard for risk stratification of hypertrophic cardiomyopathy (HCM), is limited in some situations. We sought to evaluate the predictive power of quantitative electrocardiography in assessing hypertrophy pattern and fibrosis in HCM. Eighty-eight patients with HCM were studied. Voltage of R –S–T waves, number of fragmented QRS (fQRS) complexes, and T wave morphology were measured by 12-lead electrocardiography. Sixteen segmental thickness, late gadolinium enhancement (LGE), native T1, extracellular volume fraction (ECV), and T2, left ventricu...
Source: The International Journal of Cardiovascular Imaging - May 4, 2018 Category: Radiology Source Type: research

Echocardiographic measurements of epicardial adipose tissue and comparative ability to predict adverse cardiovascular outcomes in patients with coronary artery disease
AbstractThe present study aimed to compare echocardiography measurements of epicardial adipose tissue (EAT) thickness and other risk factors regarding their ability to predict adverse cardiovascular outcomes in patients with coronary artery disease (CAD). Outcomes of 107 patients (86 males, 21 females, mean age 63.6  years old) submitted to diagnostic echocardiography and coronary angiography were prospectively analyzed. EAT (measures over the right ventricle, interventricular groove and complete bulk of EAT) and left ventricle ejection fraction (LVEF) were performed by echocardiography. Coronary complexity wa s evalu...
Source: The International Journal of Cardiovascular Imaging - May 2, 2018 Category: Radiology Source Type: research

Paclitaxel-coated balloon treatment for functionally nonsignificant residual coronary lesions after balloon angioplasty
AbstractThere is limited data on the efficacy of paclitaxel-coated balloon (PCB) compared to stents for de novo coronary lesions. The purpose of this study was to compare the efficacy of PCB treatment with stent implantation for de novo coronary lesions after successful plain old balloon angioplasty (POBA) guided by fractional flow reserve (FFR). In 200 patients scheduled for elective percutaneous coronary intervention (PCI) for de novo lesions, FFR was measured after POBA (POBA –FFR). If POBA–FFR was ≥ 0.75, patients were treated with PCB (PCB group, n = 78) or stent (Stent group, n&thi...
Source: The International Journal of Cardiovascular Imaging - April 26, 2018 Category: Radiology Source Type: research

Computer-aided analysis of 64- and 320-slice coronary computed tomography angiography: a comparison with expert human interpretation
We examined index and 30 Day outcomes by diagnosis for each scanner and the human reader. 60% of cases could be triaged by the computer. Sensitivity was approximately 85% for both scanners, with specificity at 50.6% for the 64 slice and at 56.5% for the 320 slice scanner (per person measures). The NPV was 97.8 and 97.1 for the 64 and 320 slice scanners, respectively. Results for the four major vessels were similar with negative predictive values ranging from 97 to 100%. The ROC for Computer Aided Diagnosis for the 64 and 320 Slice Scanners, using the human reader as the gold standard was 0.6794 and 0.7097 respectively. The...
Source: The International Journal of Cardiovascular Imaging - April 25, 2018 Category: Radiology Source Type: research

Left atrial deformation as a potent predictor for paroxysmal atrial fibrillation in patients with end-stage renal disease
AbstractIt is widely known that various factors contribute to left atrial (LA) mechanical dysfunction in patients with end stage renal disease (ESRD). However, the connection between atrial dysfunction and arrhythmic events such as paroxysmal atrial fibrillation (PAF), in this group of patients, remains unclear. The purpose of our study was to evaluate prospectively the association between LA deformation indices and PAF in ESRD patients. 79 patients (41 men, mean age 57  ± 17) with ESRD and preserved left ventricular systolic function comprised the study population. All patients underwent a baseline co...
Source: The International Journal of Cardiovascular Imaging - April 21, 2018 Category: Radiology Source Type: research

Myocardial flow reserve derived by dynamic perfusion single-photon emission computed tomography reflects the severity of coronary atherosclerosis
AbstractA novel single-photon emission computed tomography (SPECT) camera was developed to evaluate dynamic myocardial perfusion flow. However, it is unclear whether myocardial flow reserve (MFR) derived by dynamic perfusion SPECT using the novel SPECT camera (D-SPECT) reflects the severity of coronary atherosclerosis. In the present study, we therefore examined the relationship between MFR using D-SPECT and severity of coronary lesions. The study population comprised 40 patients who underwent both a myocardial dynamic perfusion SPECT study and invasive coronary angiography. The severity of coronary atherosclerosis was eva...
Source: The International Journal of Cardiovascular Imaging - April 20, 2018 Category: Radiology Source Type: research

Investigation of circle of Willis variants and hemodynamic parameters in twins using transcranial color-coded Doppler sonography
We examined CW morphology and recorded peak systolic velocity (PSV), end-diastolic velocity (EDV) and pulsatility index (PI). Raw heritability was determined for hemodynamic parameters, whereas concordance and discordance rates were cal culated for CW morphological variants. A normal CW anatomy was observed in the majority of MZ and DZ twins (76.5% and 92.3%, respectively). The most frequent variant was a missing anterior cerebral artery (ACA). There was no significant difference in the prevalence of most CW variants depending on t he zigosity. Concordance rates were low regarding the presence of variant CW anatomy both in...
Source: The International Journal of Cardiovascular Imaging - April 19, 2018 Category: Radiology Source Type: research

Fetal regional myocardial strain rate in the membranous ventricular septum: changes with gestational age and the left ventricular mass and predictive value for a complete membranous ventricular septum (without defect)
AbstractTo describe the fetal regional myocardial strain rate in the membranous ventricular septum across gestation and to determine their predictive value for a complete membranous ventricular septum (without defect) after delivery. In 1150 fetuses, the peak systolic strain rate (SRs), peak early diastolic strain rate (SRe) and peak late diastolic strain rate (SRa) in the membranous ventricular septum were measured at four time points across gestation (18 –20, 24–26, 30–32 and 36–38 weeks). The integrity of the interventricular septum was examined at 12 weeks’ postnatal age. The cor...
Source: The International Journal of Cardiovascular Imaging - April 17, 2018 Category: Radiology Source Type: research

Impact of different coarctation therapies on aortic stiffness: phase-contrast MRI study
This study aimed to non-invasively assess aortic stiffness between different repair or intervention strategies in patients with coarctation of the aorta. Forty-nine coarctation patients who underwent either surgery (n  = 26), balloon angioplasty (n = 14), or stent implantation (n = 12), and 26 age- and size-matched normotensive healthy controls underwent evaluation of thoracic aortic stiffness and flow hemodynamics via phase-contrast cardiac magnetic resonance. In children who had undergone surgical r epair or balloon angioplasty, ascending aortic stiffness was increased when measu...
Source: The International Journal of Cardiovascular Imaging - April 17, 2018 Category: Radiology Source Type: research

Validation of contrast-enhanced time-resolved magnetic resonance angiography in pre-ablation planning in patients with atrial fibrillation: comparison with traditional technique
AbstractBolus timing is critical to optimal magnetic resonance angiography (MRA) acquisitions but can be challenging in some patients. Our purpose was to evaluate whether contrast-enhanced time-resolved magnetic resonance angiography (TR-MRA), a dynamic multiphase sequence that does not rely on bolus timing, is a viable alternative method to conventional 3D fast-long angle shot contrast-enhanced magnetic resonance angiography (CE-MRA). Coronal subtracted conventional CE-MRA images in 50 consecutive patients presenting for pre-atrial fibrillation ablation pulmonary venous (PV) mapping were compared with 50 TR-MRA images per...
Source: The International Journal of Cardiovascular Imaging - April 16, 2018 Category: Radiology Source Type: research

Intravascular ultrasound assessment of the effects of rotational atherectomy in calcified coronary artery lesions
AbstractWe sought to clarify intravascular ultrasound (IVUS) features of rotational atherectomy (RA) of calcified lesions. IVUS was performed post-RA and post-stent in 38 lesions and analyzed every 1  mm. Pre-intervention IVUS was performed when the IVUS catheter crossed the lesion (n = 11). Calcium Index was average calcium angle multiplied by calcium length. We compared lowest (n = 13), middle (n = 13), and highest (n = 12) Calcium Index tertiles. Reverberations (multiple refl ections from calcium) with a concave-shaped lumen in the post-RA IVUS were considered...
Source: The International Journal of Cardiovascular Imaging - April 16, 2018 Category: Radiology Source Type: research

Optimizing right ventricular focused four-chamber views using three-dimensional imaging, a comparative magnetic resonance based study
This study main objective was to determine whether measurements from RV focused views derived from three-dimensional (3D) echocardiography (3D-RV-focused) are closely related to measurements from magnetic resonance (CMR). A first cohort of 47 patients underwent 3D echocardiography and CMR imaging within 2  h of each other. A second cohort of 25 patients had repeat 3D echocardiography to determine the test–retest characteristics; and evaluate the bias associated with unfocused RV views. Tomographic views were extracted from the 3D dataset: RV focused views were obtained using the maximal RV diamete r in the trans...
Source: The International Journal of Cardiovascular Imaging - April 13, 2018 Category: Radiology Source Type: research

Analysis of anomalous origin of coronary arteries by coronary angiography in Chinese patients with coronary artery disease
AbstractWith the development of coronary angiography for the diagnosis of coronary artery disease, its clinical significance in detecting coronary artery anomalies and evaluating the seriousness is attracting more attention. In the study we aimed to assess the prevalence of anomalous origin of coronary arteries in a Chinese population who underwent coronary angiography for coronary artery disease, and explore any patterns in the common variants and typical anomalies, especially the potentially serious ones. Patients who underwent coronary angiography from January 2013 to December 2016 in Fuwai Hospital were included. Basel...
Source: The International Journal of Cardiovascular Imaging - April 13, 2018 Category: Radiology Source Type: research

Cardiovascular imaging 2017 in the International Journal of Cardiovascular Imaging
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - April 13, 2018 Category: Radiology Source Type: research

Early detection of cardiac alterations by left atrial strain in patients with risk for cardiac abnormalities with preserved left ventricular systolic and diastolic function
This study sought to examine whether early cardiac alterations could be detected by left atrial (LA) strain in patients with risk for cardiac abnormalities. In this cross-sectional and retrospective study, we included patients with (n  = 234) and without (n = 48) risk for cardiac abnormalities (i.e. those with arterial hypertension, diabetes mellitus and/or a history of coronary artery disease) of similar age and with preserved left ventricular (LV) systolic and diastolic function according to standard criteria. LA strain was significantly altered in patients with risk for cardiac abnormalities ...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Reference ranges for three-dimensional feature tracking cardiac magnetic resonance: comparison with two-dimensional methodology and relevance of age and gender
This study provides reference ranges for 3D FT-CMR and assesses its reproducibility compared to 2D FT-CMR. One hundred healthy individuals with 10 men and women in each of 5 age deciles from 20 to 70 years, underwent 2D and 3D FT-CMR of left ventricular myocardial strain and strain rate using SSFP cines. Good health was defined by the absence of hypertension, diabetes, obesity, dyslipidaemia, or any cardiovascular, renal, hepatic, haematological and systemic inflammatory disease. Normal values for myocardial strain assessed by 3D FT-CMR were consistently lower compared with 2D FT-CMR measures [global circumferential strain...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Cardiac function in patients with polymyositis or dermatomyositis: a three-dimensional speckle-tracking echocardiography study
AbstractCardiac event is a major cause of death in patients with idiopathic inflammatory myopathies (IIM). The most frequent IIMs are polymyositis (PM) and dermatomyositis (DM). The purpose of this study was to analyze cardiac involvement by three-dimensional speckle-tracking echocardiography (3D STE) in patients with PM or DM, and to identify the relationship of cardiac injury with clinical characteristics and disease-specific parameters. 60 PM/DM patients with preserved left ventricular ejection fraction and 30 matched healthy controls were assessed by conventional echocardiography, 3D STE with biventricular strain analy...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Cardiac structure and function in elite Native Hawaiian and Pacific Islander Rugby Football League athletes: an exploratory study
AbstractThe aim of this exploratory study was to define the Athletes Heart (AH) phenotype in Native Hawaiian& Pacific Islander (NH&PI) Rugby Football League (RFL) athletes. Specifically, (1) to describe conventional echocardiographic indices of left ventricle (LV) and right ventricle (RV) structure and function in NH&PI RFL players and matched RFL Caucasian controls (CC) and (2) to demonstrate LV and RV mechanics in these populations. Ethnicity is a contributory factor to the phenotypical expression of the AH. There are no data describing the cardiac phenotype in NH&PI athletes. Twenty-one male elite NH&...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Mechanical deformation in adult patients with unrepaired aortic coarctation
AbstractAortic coarctation is a congenital heart disease that causes an increased left ventricular afterload, resulting in increased systolic parietal tension, compensatory hypertrophy, and left ventricular systolic and diastolic dysfunction. The speckle tracking is a new echocardiographic technique that allows the detection of subclinic left ventricular systolic  dysfunction. The aim of this study was to detect early left ventricular dysfunction using mechanical deformation by echocardiography in adults with un-repaired aortic coarctation. A total of 41 subjects were studied, 20 patients with aortic coarctation and 2...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Speckle tracking imaging in inflammatory heart diseases
In this study, we tried to evaluate regional and global longitudinal strain by speckle tracking echocardiography in patients with acute inflammatory myocardial diseases in correlation with CMR. Patients with suspected acute myocarditis were recruited prospectively. Clinical diagnosis was established based on clinical, electrocardiographic, laboratory and conventional echocardiographic data. All patients underwent CMR and repeat echocardiographic examination within 24  h of CMR. Echocardiographic examinations were analyzed offline with speckle tracking imaging software. Thirty-two patients with acute perimyocarditis an...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Reproducibility of peak filling and peak emptying rate determined by cardiovascular magnetic resonance imaging for assessment of biventricular systolic and diastolic dysfunction in patients with pulmonary arterial hypertension
AbstractRight ventricular (RV) and left ventricular (LV) diastolic stiffness may be independent contributors to disease progression in pulmonary arterial hypertension (PAH). The aims of this study are to assess reproducibility of peak emptying rate (PER) and early diastolic peak filling rate (PFR) for both the RV and the LV in PAH and study their relationship to stroke volume (SV). Triple weekly repetition of 20 (totalling 60) cardiovascular magnetic resonance (CMR) scans, were done on 10 patients with PAH and 10 healthy controls. RV and LV volumes were measured over the full cardiac cycle. PER and PFR were calculated as t...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Left ventricular energy loss and wall shear stress assessed by vector flow mapping in patients with hypertrophic cardiomyopathy
AbstractThe aim of this study was to assess left ventricular (LV) summation of energy loss (EL-SUM), average energy loss (EL-AVE) and wall shear stress (WSS) using vector flow mapping (VFM) in patients with hypertrophic cardiomyopathy (HCM). Forty HCM patients, and 40 controls were evaluated by transthoracic echocardiography. Conventional echocardiographic parameters, summation and average of energy loss (EL-total, EL-base, EL-mid and EL-apex), and WSS in each segment were calculated at different phases. Compared with controls, conventional diastolic measurements were impaired in HCM patients. HCM patients also showed incr...
Source: The International Journal of Cardiovascular Imaging - April 6, 2018 Category: Radiology Source Type: research

Use of speckle tracking in the evaluation of late subclinical myocardial damage in survivors of childhood acute leukaemia
AbstractHeart disease is the leading cause of non-cancer death in childhood cancer survivors. to determine the prevalence of subclinical cardiac dysfunction using speckle tracking and compare its results with those obtained by classical methods of assessing left ventricular function and its relationship with different factors to identify the population at higher risk. Echocardiographic assessment of left ventricular function included ejection fraction, tissue Doppler, longitudinal/circumferential strains and biochemical parameters (troponin-T and Pro-BNP) in a cohort of 57 survivors of childhood acute leukaemia with at lea...
Source: The International Journal of Cardiovascular Imaging - April 2, 2018 Category: Radiology Source Type: research

Impact of incomplete ventricular coverage on diagnostic performance of myocardial perfusion imaging
AbstractIn the context of myocardial perfusion imaging (MPI) with cardiac magnetic resonance (CMR), there is ongoing debate on the merits of using technically complex acquisition methods to achieve whole-heart spatial coverage, rather than conventional 3-slice acquisition. An adequately powered comparative study is difficult to achieve given the requirement for two separate stress CMR studies in each patient. The aim of this work is to draw relevant conclusions from SPECT MPI by comparing whole-heart versus simulated 3-slice coverage in a large existing dataset. SPECT data from 651 patients with suspected coronary artery d...
Source: The International Journal of Cardiovascular Imaging - March 19, 2018 Category: Radiology Source Type: research

Disagreement between splenic switch-off and myocardial T1-mapping after caffeine intake
AbstractCaffeine is an adenosine receptor antagonist and a possible cause of inadequate stress perfusion. Splenic switch-off (SSO) and splenic rest-stress T1-mapping have been proposed as indicators of stress adequacy during perfusion cardiac magnetic resonance (CMR). We compared myocardial rest-stress T1-mapping with SSO and splenic rest-stress T1-mapping in patients with and without recent coffee intake. We analyzed 344 consecutive patients suspected of myocardial ischemia with adenosine perfusion CMR. All 146 normal CMR studies with a normal T1-rest of the myocardium, used as standard of reference, were included and div...
Source: The International Journal of Cardiovascular Imaging - March 19, 2018 Category: Radiology Source Type: research

Systolic pulmonary artery pressure assessed during routine exercise Doppler echocardiography: insights of a real-world setting in patients with elevated pulmonary pressures
AbstractPulmonary hypertension is a marker of disease severity. Exercise Doppler echocardiography (EDE) has proven to be feasible and reliable to assess pulmonary pressure. Increase in systolic pulmonary artery pressure (sPAP) has diagnostic and prognostic value in controlled studies. However, its value when assessed during routine examination in patients with cardiopulmonary diseases and resting sPAP  >  35 mmHg is not clearly defined. Clinical documentation and offline reevaluation of digitally stored EDE examinations of patients with appropriate clinical indications for EDE were analyzed. N ...
Source: The International Journal of Cardiovascular Imaging - March 19, 2018 Category: Radiology Source Type: research

Feasibility of myocardial flow reserve prediction without the use of dynamic data from myocardial perfusion positron emission tomography
This study included 40 consecutive patients suspected of ischemic heart disease and 7 healthy controls (34 men and 13 women, 66  ± 12 years). All participants underwent adenosine stress and rest13N-ammonia MP-PET. From the dynamic images, the MFR in the entire left ventricular myocardium (ELV) and the three-vessel area was calculated by dividing stress myocardial blood flow (MBF) by rest MBF. From the static images, the myocardium-to-background ratio (MBR) was calculated by dividing each area ’s counts/pixel by background counts in the upper thoracic aorta/pixel in both stress and rest image...
Source: The International Journal of Cardiovascular Imaging - March 19, 2018 Category: Radiology Source Type: research

Predictors of femoral hematoma in patients undergoing elective coronary procedure: a trigonometric evaluation
AbstractVascular complications in the femoral artery puncture site are the most common complications of the coronary angiography. Femoral hematoma is the leading participant of the vascular complications. We investigated the femoral hematoma predictive value of angle of sheath to trochanter major in patients undergoing elective coronary procedures. In this prospective analysis, we evaluated the femoral hematoma predictive value of angle of sheath to trochanter major on 246 patients undergoing elective coronary procedures. In this prospective analysis, we evaluated the femoral hematoma predictive value of angle of sheath to...
Source: The International Journal of Cardiovascular Imaging - March 17, 2018 Category: Radiology Source Type: research

Multiple pathologies in one standard cardiac MR examination: whole in one
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - March 15, 2018 Category: Radiology Source Type: research

Comparison of SYNTAX score II efficacy with SYNTAX score and TIMI risk score for predicting in-hospital and long-term mortality in patients with ST segment elevation myocardial infarction
AbstractSYNTAX score II (SS-II) has a powerful prognostic accuracy in patients with stable complex coronary artery disease who have undergone revascularization; however, there is limited data regarding the prognosis of patients with ST segment elevation myocardial infarction (STEMI). The aim of this study is to examine both the predictive performance of SS-II in determining in-hospital and long term mortality of STEMI patients and to compare SYNTAX score (SS) and TIMI risk score (TRS). Consecutive 1912 STEMI patients treated with primary percutaneous coronary intervention (p-PCI) retrospectively reviewed, and the remaining...
Source: The International Journal of Cardiovascular Imaging - March 14, 2018 Category: Radiology Source Type: research

Precision of regional wall motion estimates from ultra-low-dose cardiac CT using SQUEEZ
AbstractResting regional wall motion abnormality (RWMA) has significant prognostic value beyond the findings of computed tomography (CT) coronary angiography. Stretch quantification of endocardial engraved zones (SQUEEZ) has been proposed as a measure of regional cardiac function. The purpose of the work reported here was to determine the effect of lowering the radiation dose on the precision of automatic SQUEEZ assessments of RWMA. Chronic myocardial infarction was created by a 2-h occlusion of the left anterior descending coronary artery in 10 swine (heart rates 80 –100, ejection fraction 25–57%). CT was perf...
Source: The International Journal of Cardiovascular Imaging - March 13, 2018 Category: Radiology Source Type: research

Spontaneous correction of misplaced peripherally inserted central catheters
AbstractThe purpose of the present study was to examine a new protocol involving the spontaneous correction of the misplaced tip of a peripherally inserted central catheter (PICC). Patients with PICCs misplaced in the jugular or contralateral subclavian veins were recruited. All patients underwent chest X-ray (CXR) after 3 days. In addition, those whose PICC tip still was misplaced and received another CXR after 4 days. The functions of the catheters, the subjective feelings of the patients, and local symptoms of the neck and upper anterior chest wall were recorded. Among 866 patients who had PICCs, we observed 22 PICC tip...
Source: The International Journal of Cardiovascular Imaging - March 12, 2018 Category: Radiology Source Type: research

Evaluation of mitral regurgitation by an integrated 2D echocardiographic approach in patients undergoing transcatheter aortic valve replacement
AbstractThe purpose of this study was to evaluate mitral regurgitation (MR) severity in patients undergoing transcatheter aortic valve replacement (TAVR) by standardized assessment of two-dimensional (2D) transthoracic echocardiography (TTE) and 1-year echocardiographic and clinical outcomes. Pre- and post-procedural TTE ’s of patients undergoing TAVR between 2008 and 2014 were analyzed. MR was graded according to current guidelines with a systematic and integrated approach. Longitudinal echocardiographic and clinical results were analyzed. Regression analysis was performed for change in MR grade at follow-up, usi ng...
Source: The International Journal of Cardiovascular Imaging - March 10, 2018 Category: Radiology Source Type: research

Non-compact myocardium assessment by cardiac magnetic resonance: dependence on image analysis method
AbstractTo compare image analysis methods for the assessment of left ventricle non-compaction from cardiac magnetic resonance (CMR) imaging. CMR images were analyzed in 20 patients and 10 normal subjects. A reference model of the MR signal was introduced and validated based on image data. Non-compact (NC) myocardium size and distribution were assessed by tracing a single, continuous contour delimiting trabeculated region (Jacquier) or by one-by-one selection of trabeculae (Grothoff). The global non-compact/compact (NC/C) ratio, the NC mass, and the segmental NC/C ratio were assessed. Results were compared with the referenc...
Source: The International Journal of Cardiovascular Imaging - March 9, 2018 Category: Radiology Source Type: research

Correction to: Myocardial T1 mapping and extracellular volume quantification: an overview of technical and biological confounders
The article “Myocardial T1 mapping and extracellular volume quantification: an overview of technical and biological confounders”, written by “Stefan K. Piechnik and Michael Jerosch‑Herold”, was originally published Online First without open access. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - March 9, 2018 Category: Radiology Source Type: research

Contrast agent concentration optimization in CTA using low tube voltage and dual-energy CT in multiple vendors: a phantom study
AbstractWe investigated the feasibility and extent to which iodine concentration can be reduced in computed tomography angiography imaging of the aorta and coronary arteries using low tube voltage and virtual monochromatic imaging of 3 major dual-energy CT (DECT) vendors. A circulation phantom was imaged with dual source CT (DSCT), gemstone spectral imaging (GSI) and dual-layer spectral detector CT (SDCT). For each scanner, a reference scan was acquired at 120 kVp using routine iodine concentration (300 mg I/ml). Subsequently, scans were acquired at lowest possible tube potential (70, 80, 80 kVp, respectively), and DECT-mo...
Source: The International Journal of Cardiovascular Imaging - March 8, 2018 Category: Radiology Source Type: research

Clinical applications of multiparametric CMR in left ventricular hypertrophy
AbstractThere are a number of diseases which can increase left ventricular myocardial wall thickness through a number of different mechanisms. Multi-parametric mapping techniques are a new addition to the cardiovascular magnetic resonance (CMR) armoury with a number of potential clinical roles. In this review article, we will explore the role of imaging in left ventricular hypertrophy, and particularly developments in CMR. We focus on ability of CMR to characterize myocardial tissue using multiparametric mapping (native T1, T2 and extracellular volume mapping), to bridge from the microscopic histological domain and into th...
Source: The International Journal of Cardiovascular Imaging - March 3, 2018 Category: Radiology Source Type: research

Left and right ventricular parameters corrected with threshold-based quantification method in a normal cohort analyzed by three independent observers with various training-degree
AbstractWhile cardiac magnetic resonance (CMR) is the reference method to evaluate left and right ventricular functions, volumes and masses, there is no widely accepted method for the quantitative analysis of trabeculae and papillary muscles (TPM). The aim of this study was to investigate the effect of TPM quantification on left and right ventricular CMR values in a normal cohort and to investigate interobserver variability of threshold-based (TB) analysis by three independent observers with variant experience in CMR. At our clinic, 60 healthy volunteers (30 males, mean age 25.6  ± 4.7 years) unde...
Source: The International Journal of Cardiovascular Imaging - February 28, 2018 Category: Radiology Source Type: research

Characterization of hypertrophic cardiomyopathy according to global, regional, and multi-layer longitudinal strain analysis, and prediction of sudden cardiac death
AbstractTo evaluate the severity of hypertrophic cardiomyopathy (HCM) according to global, regional, and multi-layer longitudinal strain (LS) analysis using speckle-tracking echocardiography. From February 2007 to November 2014, we prospectively evaluated 375 consecutive HCM patients referred to our specialized cardiomyopathy center. Demographics, clinical, and rest and exercise echocardiographic parameters were collected according to a completely standardized protocol. Global, regional, and multilayer strain analyses were performed. Correlations between LS and other characteristics were evaluated, and we assessed their pr...
Source: The International Journal of Cardiovascular Imaging - February 27, 2018 Category: Radiology Source Type: research

Transthoracic echocardiography in patients undergoing mitral valve repair: comparison of new transthoracic 3D techniques to 2D transoesophageal echocardiography in the localization of mitral valve prolapse
AbstractSuccessful mitral valve (MV) repair for degenerative mitral regurgitation (DMR) is mainly related to surgical expertise and MV anatomy. Although 2D echocardiography, specifically transoesophageal (TOE), provides precise information regarding MV anatomy, recent advancements in matrix technology meant a decisive step forward to the point where segmental MV analysis can be accurately performed from a noninvasive 3D transthoracic (TTE) approach. The aims of this study were: (a) to evaluate the feasibility and time required for real-time 3D  TTE in a large consecutive cohort of patients with severe DMR in the asses...
Source: The International Journal of Cardiovascular Imaging - February 26, 2018 Category: Radiology Source Type: research

Echocardiographic assessment of right ventricle free wall strain for prediction of right coronary artery proximal lesion in patients with inferior myocardial infarction
In this study, our objective was to evaluate right ventricular functions with speckle-tracking and conventional echocardiographic methods in patients with acute inferior myocardial infarction and to investigate the correlation between the echocardiographic parameters and the prediction of the proximal RCA lesions. 77 patients were included in this study. Patients with a RCA occluded proximal to the right ventricular branch were assigned to Group 1 and patients with an RCA occlusion distal to the right ventricle branch were assigned to Group 2. All echocardiographic examinations were carried out within 24  h after PTCA...
Source: The International Journal of Cardiovascular Imaging - February 26, 2018 Category: Radiology Source Type: research

Incidental findings in multislice computed tomography prior to transcatheter aortic valve implantation: frequency, clinical relevance and outcome
AbstractMultislice computed tomography (MSCT) has emerged as the mainstay in patients planned for transcatheter aortic valve implantation (TAVI). Incidental findings (IF) in MSCT are common. However, the exact incidence, clinical relevance and further consequences of IF are unclear and it is controversial whether IF adversely affect patients ’ outcome. We analyzed MSCT data of 1050 patients screened for TAVI between January 2011 and December 2014. Median follow-up of patients was 20 months. In total, 3194 IF were identified, which were classified into clinically non-relevant IF (2872, 90%) and clinically relevan...
Source: The International Journal of Cardiovascular Imaging - February 21, 2018 Category: Radiology Source Type: research

Relationship between carotid artery atherosclerosis and bulb geometry
AbstractThe carotid bifurcation is a common site of atherosclerotic plaque. Plaque development is thought to occur preferentially at geometrically predisposed areas such as arterial branch points. The aim of this study was to investigate the geometric and anatomical variables that contribute to the development of carotid plaque using three-dimensional (3D) ultrasound. Sixty-seven consecutive outpatients referred for elective coronary angiography underwent 3D carotid ultrasound scans for the purpose of carotid plaque quantification. Geometric quantification of the left and right carotid bulbs were performed retrospectively ...
Source: The International Journal of Cardiovascular Imaging - February 20, 2018 Category: Radiology Source Type: research