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

Accuracy of cardiac CT in evaluating severity of left atrial appendage spontaneous echo contrast: comparison with transesophageal echocardiography
AbstractTo investigate the capacity of biphasic cardiac CT (CCT) for qualitative and quantitative evaluation of different grades of left atrial appendage spontaneous echo contrast (LAASEC). The study included 267 inpatients with confirmed atrial fibrillation who underwent both CCT and transesophageal echocardiography (TEE). CT numbers for LAA, ascending aorta (AA), and left atrium (LA) were identified, and ROC curves for LAA, LAA/AA, and LAA/LA were plotted. With TEE as the standard, the sensitivity, specificity, PPV, NPV, and accuracy of CCT for LAASEC grade  ≥ 1 were 60.3, 92.9, 92.4, 64.8, and 75.7%; an...
Source: The International Journal of Cardiovascular Imaging - February 19, 2018 Category: Radiology Source Type: research

Utility of cardiac computed tomography scanning in the diagnosis and pre-operative evaluation of patients with infective endocarditis
AbstractTransesophageal echocardiography (TEE) is the gold standard imaging study used in the diagnosis of infective endocarditis (IE). Computed tomography angiography (CTA) has undergone rapid advancement as a cardiac imaging technique and has previously shown promise in small non-randomized studies for evaluation of IE. We hypothesized that cardiac CTA would perform similarly to TEE in the detection of endocarditic lesions and that there would be no difference in clinical outcomes whether the coronary arteries were evaluated by CTA or invasive coronary angiography (ICA). 255 adults who underwent surgery for IE at the May...
Source: The International Journal of Cardiovascular Imaging - February 15, 2018 Category: Radiology Source Type: research

Focused cardiac ultrasound as a predictor of readmission in acute decompensated heart failure
AbstractAcute decompensated heart failure (ADHF) is a common reason for admission to the hospital, and readmission is frequent. Multiple factors contribute to rehospitalizations, but inadequate assessment of volume status leading to persistent congestion is an important factor. We sought to determine if focused cardiac ultrasound (FCU) of the inferior vena cava (IVC), as a surrogate of volume status, would predict readmission of ADHF patients after index hospitalization. Patients admitted with a primary diagnosis of ADHF were prospectively enrolled. All patients underwent FCU of the IVC on admission and then daily. 82 pati...
Source: The International Journal of Cardiovascular Imaging - February 15, 2018 Category: Radiology Source Type: research

Impact of acquisition and interpretation on total inter-observer variability in echocardiography: results from the quality assurance program of the STAAB cohort study
We present analyses based on the echocardiography quality-assurance program of the ongoing STAAB cohort study (characteristics and course of heart failure stages A –B and determinants of progression). In 43 healthy individuals (mean age 50 ± 14 years; 18 females), duplicate echocardiography scans were acquired and mutually interpreted by one of three trained sonographers and an EACVI certified physician, respectively. Acquisition (AcV), interpretation (InV), and inter-observer variability (IOV; i.e., variability between the acquisition-interpretation sequences of two different observers), we...
Source: The International Journal of Cardiovascular Imaging - February 14, 2018 Category: Radiology Source Type: research

Is heart rate response a reliable marker of adenosine-induced coronary hyperemia?
Conclusions We demonstrate, by correlation with Doppler-flow data, a validated method of identifying coronary hyperemia within the catheter laboratory using the pressure-wire. We subsequently show that non-invasive parameters, such as heart rate change, are poor predictors of coronary hyperemia during stress imaging protocols that rely upon achieving adenosine-induced hyperemia. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - February 14, 2018 Category: Radiology Source Type: research

Efficient workflow for automatic segmentation of the right heart based on 2D echocardiography
We presented an efficient and accurate workflow for the precise diagnosis of cardiovascular diseases. We introduced the global index metric for image pre-processing and segmentation estimation. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - February 10, 2018 Category: Radiology Source Type: research

Influence of different dynamic sporting disciplines on right ventricular Structure and function in elite male athletes
AbstractOur objective was to assess the influence of different levels of exposure to dynamic training on right ventricular (RV) structure, function and mechanics in elite male athletes. We recruited 492 male elite athletes aged between 18 and 30  years old. Athletes were grouped according to their sporting discipline using the Mitchell Classification as Low Dynamic (LD), Moderate Dynamic (MD) or High Dynamic (HD). All participants underwent 2D, Doppler, tissue Doppler and strain (ε) echocardiography with a focused and comprehensive assess ment of the right heart. Athletes involved in MD sports had the largest ...
Source: The International Journal of Cardiovascular Imaging - February 7, 2018 Category: Radiology Source Type: research

Implantation of multiple polytetrafluoroethylene covered stent inside drug eluting stent to rescue purulent coronary artery ectasia with giant saccular aneurysm
AbstractA 79-year-old male with diabetes mellitus and old cerebral infarction was admitted to hospital due to fever and palpitation. Diagnosis of purulent pericarditis was established by pericardial effusion examination. The patient ’s general condition improved temporarily after drainage of the pericardial effusion. However, computed tomography demonstrated a saccular aneurysm arising from RCA have rapidly grown even larger, up to 63 × 51 mm on 7th hospital day. This indicated that the risk of rupture of the aneurysm w as high. Percutaneous coronary intervention was applied to prevent ruptur...
Source: The International Journal of Cardiovascular Imaging - February 5, 2018 Category: Radiology Source Type: research

Assessment of superficial coronary vessel wall deformation and stress: validation of in silico models and human coronary arteries in vivo
AbstractCyclic biomechanical stress at the lumen-intima interface plays a crucial role in the rupture of coronary plaque. We performed a comprehensive assessment of a novel angiography-based method for four-dimensional (4D) dynamic assessment of superficial wall stress (SWS) and deformation with a total of 32 analyses in virtual stenosis models with equal lumen dimensions and 16 analyses in human coronary arteries in vivo. The in silico model analyses demonstrated that the SWS, derived by the proposed global displacement method without knowledge of plaque components or blood pressure, was comparable with the result calcula...
Source: The International Journal of Cardiovascular Imaging - February 3, 2018 Category: Radiology Source Type: research

Editor ’s note February 2018
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - February 3, 2018 Category: Radiology Source Type: research

Characteristics of aorto-iliofemoral arterial tree according to aortic valve morphology in chinese patients considered for TAVR
AbstractTo characterize the anatomy of aorto-iliofemoral arterial tree according to aortic valve phenotype by CT in patients referred for transcatheter aortic valve replacement (TAVR). We retrospectively enrolled 215 patients screened for TAVR who underwent CT. Dimensions, calcification, vascular tortuosity index score and other putative risk features of 13 different regions were evaluated for bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV) morphology. The study consisted of 44% BAVs with younger age than TAVs. The dimensions of the annulus, sinus of Valsalva, ascending aorta and aortic arch were consistently ...
Source: The International Journal of Cardiovascular Imaging - February 2, 2018 Category: Radiology Source Type: research

Comparison of coronary sinus diameter Z-scores in normal fetuses and fetuses with persistent left superior vena cava (PLSVC)
AbstractTo establish Z-score reference ranges for coronary sinus (CS) diameter in normal fetuses and explore the diagnostic value of CS Z-score in fetuses with persistent left superior vena cava (PLSVC). Study of 235 normal fetuses and 30 fetuses with PLSVC was involved. Noncardiac biometrical parameters included biparietal diameter (BPD), femoral length (FL), heart area (HA), gestation age (GA). The coronary sinus systolic and diastolic diameter (CSDs and CSDd ) were measured at the end of systole and diastole. CSDs and CSDd Z-score models were constructed by using linear regression analysis with Non-cardiac biometrical p...
Source: The International Journal of Cardiovascular Imaging - February 1, 2018 Category: Radiology Source Type: research

Age-related changes in morphology of left atrial appendage in patients with atrial fibrillation
AbstractThe purpose of this study was to evaluate the relationship between age and frequency of left atrial appendage (LAA) morphology in patients with atrial fibrillation (AF) compared with sinus rhythm (SR). We enrolled 145 AF patients, and 199 SR patients for the control group without any cardiovascular disease. LAA volume index (LAAVi) and morphology were assessed by electrocardiogram-gated computed tomography angiography. LAA morphology was classified into “chicken wing” or “non-chicken wing” according to the previously described classification. There was no significant trend in frequency of no...
Source: The International Journal of Cardiovascular Imaging - February 1, 2018 Category: Radiology Source Type: research

Detection of myocardial iron overload by two-dimensional speckle tracking in patients with beta-thalassaemia major: a combined echocardiographic and T2* segmental CMR study
AbstractWe aimed to evaluate the role of two-dimensional speckle tracking imaging (2DSTI) in detecting early changes of myocardial deformation in patients affected by thalassemia major (TM) and its relation with myocardial iron overload (MIO) detected by T2* cardiovascular magnetic resonance (CMR). We studied 28 TM patients (15 males, 37.4  ± 10 years). All patients underwent CMR and echocardiography in the same day. Segmental and global T2* values were measured. Values of global longitudinal strain (GLS) were derived from the three apical views, while radial and circumferential strain were obtain...
Source: The International Journal of Cardiovascular Imaging - February 1, 2018 Category: Radiology Source Type: research

Effect of cardiac resynchronization therapy on mitral valve geometry: a novel aspect as & quot;reversed mitral remodeling & quot;
AbstractAmelioration of the valvular geometry is a possible mechanism for mitral regurgitation (MR) improvement in patients receiving cardiac resynchronization therapy (CRT). We aimed to establish the precise definition, incidence, and predictors of reversed mitral remodeling (RMR), as well as the association with MR improvement and short-term CRT outcome. Ninety-five CRT recipients were retrospectively evaluated for the end-point of “MR response” defined as the absolute reduction in regurgitant volume (RegV) at 6 months. To identify RMR, changes in mitral deformation indices were tested for correlation with MR...
Source: The International Journal of Cardiovascular Imaging - January 31, 2018 Category: Radiology Source Type: research

The feasibility of tricuspid annular plane systolic excursion performed by transesophageal echocardiography throughout heart surgery and its interchangeability with transthoracic echocardiography
AbstractTricuspid annular plane systolic excursion (TAPSE) is a robust measure of RV function, but the performance of transesophageal echocardiography (TEE) measured TAPSE during surgery is not well established. We aim to evaluate feasibility of various TEE views before, during and after surgery. Furthermore, we compare performance of individual TEE measurements depending on view and method (AMM- and M-mode as well as 2D) as well as TAPSE measured using TEE with transthoracic echocardiography (TTE) TAPSE. The study was conducted from January 2015 through September 2016. In 47 patients with normal left ventricular ejection ...
Source: The International Journal of Cardiovascular Imaging - January 30, 2018 Category: Radiology Source Type: research

Value of CT pulmonary angiography to predict short-term outcome in patient with pulmonary embolism
AbstractTo evaluate the role of CT pulmonary angiography (CTPA) in the assessment of pulmonary embolism (PE) severity and the related CT cardiac changes, reflecting the clinical status of the patients and predicting the outcome. A prospective study of 184 patients presented with suspicious acute PE. All patients underwent CTPA followed by ECHO. Pulmonary artery obstructive index (PAOI) using Qanadli Score was calculated and cardiac changes recorded. The patients ’ outcome was followed up for 30 days. Only 150 patients completed the study; 26.7% needed ICU admission while 13.3% died during follow-up. There was a signi...
Source: The International Journal of Cardiovascular Imaging - January 18, 2018 Category: Radiology Source Type: research

Normal pulmonary artery and branch pulmonary artery sizes in children
AbstractTo establish standards for pulmonary artery and branch pulmonary artery (PA and BPA) effective diameter (ED) and cross-sectional area (CSA) by using computed tomography (CT) data in children of a wide range of sizes and investigate the roundness of arteries. The ED (average of short and long axes) and CSA for the PA and BPA were measured using 1-mm collimation double-oblique reconstructions. Ordinary least squares regression was used to investigate models with various functional forms that related ED and CSA to patient size. Aspect ratio (AR), the short axis divided by long axis, was measured to evaluate roundness....
Source: The International Journal of Cardiovascular Imaging - January 18, 2018 Category: Radiology Source Type: research

Noninvasive quantification of left-to-right shunt by phase contrast magnetic resonance imaging in secundum atrial septal defect: the effects of breath holding and comparison with invasive oximetry
AbstractTo investigate the effect of breath-holding on left-to-right shunts in patients with a secundum atrial septal defect (ASD). Thirty-five consecutive patients with secundum ASDs underwent right heart catheterization and invasive oximetry. Phase-contrast magnetic resonance imaging (MRI) was performed for the main pulmonary artery and ascending aorta. All measurements were obtained during free breathing (FB) (quiet breathing; no breath-hold), expiratory breath-hold (EBH), and inspiratory breath-hold (IBH). Pulmonary circulation flow (Qp) and systemic circulation flow (Qs) were calculated by multiplying the heart rate b...
Source: The International Journal of Cardiovascular Imaging - January 16, 2018 Category: Radiology Source Type: research

Incremental predictive value of carotid arterial strain in patients with stroke
AbstractAlthough increased carotid intima-media thickness (IMT) is a well-known risk factor for stroke, carotid IMT alone is not sufficient for risk stratification. The assessment of arterial properties using velocity vector imaging (VVI) represents a new method for quantifying structural changes. We sought to investigate the characteristics and the clinical value of carotid arterial mechanics using VVI in patients with stroke. Fifty male patients (55  ± 5 years) with stroke, 30 healthy age-matched volunteers (54 ± 8 years), and 30 healthy young male volunteers (29&thinsp...
Source: The International Journal of Cardiovascular Imaging - January 11, 2018 Category: Radiology Source Type: research

Measurement of cardiac valve and aortic blood flow velocities in stroke patients: a comparison of 4D flow MRI and echocardiography
Abstract4D flow MRI is an emerging technique that allows quantification of 3D blood flow in vivo. However, comparisons with methods of blood velocity quantification used in clinical routine are sparse. Therefore, we compared velocity quantification using 4D flow MRI with transthoracic and transesophageal echocardiography at the mitral and aortic valves and the aorta. Forty-eight stroke patients (age 67.3  ± 15.0 years) were examined by 4D flow MRI. Blood flow velocities were assessed using standardized 2D analysis planes positioned in the mitral valve (MV), aortic valve (AV), ascending aorta (AAo)...
Source: The International Journal of Cardiovascular Imaging - January 11, 2018 Category: Radiology Source Type: research

Echocardiographic assessment of regional right ventricular systolic function using two-dimensional strain echocardiography and evaluation of the predictive ability of longitudinal 2D-strain imaging for pulmonary arterial hypertension in systemic sclerosis patients
AbstractSystemic sclerosis (SSc) is a generalized connective tissue disorder, and SSc patients are at risk of developing pulmonary arterial hypertension (PAH). The aims of this study are to evaluate the right ventricular regional systolic function using two-dimensional speckle-tracking echocardiography (2D STE) and to determine the predictive ability of peak longitudinal systolic strain (PLSS) at the RV lateral wall for PAH in SSc patients. 80 SSc patients (mean age 51  ± 12 years) were included in the study. Echocardiography and 2D STE were performed at baseline and after 12 months. RHC was ...
Source: The International Journal of Cardiovascular Imaging - January 10, 2018 Category: Radiology Source Type: research

Atypical presentation of a primary cardiac malignant peripheral nerve sheath tumor
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - January 10, 2018 Category: Radiology Source Type: research

Optical frequency-domain imaging findings to predict good stent expansion after rotational atherectomy for severely calcified coronary lesions
AbstractWe aimed to evaluate the optical frequency-domain imaging (OFDI) findings after rotational atherectomy (RA) that predict good stent expansion for severely calcified coronary lesions. Fifty consecutive calcified lesions were subjected to RA under OFDI guidance. We performed OFDI just after RA and stenting. We measured the morphology of calcium after RA, and assessed how these factors influence stent expansion. The stent expansion index was defined as the minimum stent area divided by the average of the proximal and distal reference lumen areas. Minimum thickness of calcification in the intima after RA showed a signi...
Source: The International Journal of Cardiovascular Imaging - January 9, 2018 Category: Radiology Source Type: research

Scan –rescan reproducibility of diastolic left ventricular kinetic energy, viscous energy loss and vorticity assessment using 4D flow MRI: analysis in healthy subjects
AbstractThe aim of the current  study was to assess the scan–rescan reproducibility of left ventricular (LV) kinetic energy (KE), viscous energy loss (EL) and vorticity during diastole from four-dimensional flow magnetic resonance imaging (4D flow MRI) in healthy subjects. Twelve volunteers (age 27 ± 3 years) underwent w hole-heart 4D flow MRI twice in one session. In-scan consistency was evaluated by correlation between KE and EL. ELindex was computed to measure the amount of EL relative to KE over diastole. Scan –rescan analysis was performed to test reproducibility of volumetri...
Source: The International Journal of Cardiovascular Imaging - January 5, 2018 Category: Radiology Source Type: research

Quantitative inversion time prescription for myocardial late gadolinium enhancement using T1-mapping-based synthetic inversion recovery imaging: reducing subjectivity in the estimation of inversion time
AbstractTo develop a quantitative T1-mapping-based synthetic inversion recovery (IRsynth) approach to calculate the optimal inversion time (TI0) for late gadolinium enhancement (LGE) imaging. Prospectively enrolled patients (n  = 130, 58 ± 16 years) underwent cardiac MRI on a 1.5T system including Look-Locker TI-scout (LL), modified LL IR (MOLLI)-based T1-mapping, and LGE acquisitions. Patients were randomized into two groups: LL group (TI-scout followed T1-mapping) or MOLLI group (T1-mapping followed TI-scout). In both groups, the second acquisition was used to determine the TI0 for...
Source: The International Journal of Cardiovascular Imaging - January 5, 2018 Category: Radiology Source Type: research