Intramural hematoma squeeze causing carina shift during stent deployment. A preventable complication of coronary artery dissection treatment?
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 11, 2019 Category: Radiology Source Type: research

NASCI AHA Young Investigator awards 2018
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 9, 2019 Category: Radiology Source Type: research

A special type aortico-left ventricular tunnel with bicuspid aortic valve
This article presents an adult case of a special type ALVT combined with BAV which was diagnosed by echocardiography and computed tomographic arteriography (CTA) then successfully performed surgery and cured. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 8, 2019 Category: Radiology Source Type: research

Diagnostic performance of CT angiography to detect pulmonary vein stenosis in children
AbstractTo assess the diagnostic efficiency of CT angiography (CTA) to detect pulmonary vein stenosis in children. We retrospectively identify patients between 0 and 3  years old with confirmed pulmonary vein stenosis with conventional angiography or surgery and available CTA. Patients without confirmed stenosis of the pulmonary veins were included as controls. We excluded patients with previous surgery involving the pulmonary veins, exclusively right-heart conve ntional angiography or insufficient data in the operation note to confirm the status of the pulmonary veins. Two pediatric radiologists evaluated and determi...
Source: The International Journal of Cardiovascular Imaging - September 8, 2019 Category: Radiology Source Type: research

Evaluation of left atrial volume and function by real time three-dimensional echocardiography in anemic patients without overt heart disease before and after anemia correction
AbstractThere are few data on the effects of low hemoglobine levels on the left atrium (LA) in anemic patients. Our aim was to evaluate left atrial (LA) volume and functions in anemic patients using real time three-dimensional echocardiography (RT3DE) and also to investigate changes in variables of LA after the correction of anemia. In total, 55 iron-deficiency anemia patients without traditional cardiovascular (CV) risk factors and 30 age- and gender-matched controls were studied. Assessments included history, physical examination and echocardiography. Of the 55 patients with anemia enrolled, 50 (39 females and 11 males 4...
Source: The International Journal of Cardiovascular Imaging - August 20, 2019 Category: Radiology Source Type: research

Right atrial function for the prediction of prognosis in connective tissue disease-associated pulmonary arterial hypertension: a study with two-dimensional speckle tracking
AbstractPulmonary arterial hypertension (PAH) is a serious and often fatal complication of connective tissue disease (CTD). Right atrial (RA) function is essential to maintaining adequate total right heart function in PAH. However, little is known about prognostic utility of RA function in CTD-PAH. RA longitudinal strain (LS) and strain rate (LSR) were evaluated in 53 consecutive patients (51 female, mean age 42  ± 15 years) with CTD-PAH, including systemic lupus erythematosus (SLE) (33.7%), mixed connective tissue disease (MCTD) (32.1%), primary Sjögren’s syndrome (pSS) (26.4%), and sy...
Source: The International Journal of Cardiovascular Imaging - August 20, 2019 Category: Radiology Source Type: research

The effect of contrast agents on left ventricular parameters calculated by a threshold-based software module: does it truly matter?
AbstractThe acquisition of short-axis (SA) cine magnetic resonance (MR) images after the administration of contrast agent (CA) is a common, time-saving technique, but a decreased difference in the blood-myocardium contrast on these steady-state free precession (SSFP) cine scans could change the calculated parameters when using threshold-based papillary and trabecular muscle (PTM) quantification. We studied the effect of CA on the parameters calculated from pre- and post-CA SA cine images in noncompaction cardiomyopathy (NC-CMP) and healthy (H) participants using a threshold-based module. A total of 39 individuals (20 patie...
Source: The International Journal of Cardiovascular Imaging - August 20, 2019 Category: Radiology Source Type: research

Utility of left atrial strain for predicting atrial fibrillation following ischemic stroke
AbstractTwenty-five percent of ischemic strokes (IS) are cryptogenic, but it is estimated that paroxysmal atrial fibrillation (PAF) is the underlying cause in up to a third of cases. We aimed to investigate the predictive value of speckle tracking of the left atrium (LA) in diagnosing PAF in IS patients. We retrospectively studied 186 IS patients with a clinical echocardiographic examination during sinus rhythm. Outcome was PAF defined by at least one reported episode of AF following their IS. Conventional echocardiographic measures were performed. Global longitudinal strain (GLS), LA reservoir-( εs), conduit-( &ep...
Source: The International Journal of Cardiovascular Imaging - August 20, 2019 Category: Radiology Source Type: research

Effect of diastolic dysfunction on intraventricular velocity behavior in early diastole by flow mapping
AbstractIntraventricular velocity distribution reflects left ventricular (LV) diastolic function and can be measured non-invasively by flow mapping technologies. We designed our study to compare intraventricular velocities and gradients, obtained by vector flow mapping (VFM) technology during early diastole in consecutive patients diagnosed with mild and advanced diastolic dysfunction at echocardiography and a control group with a purpose to validate the hypothesis of relationship between new parameters and severity of diastolic dysfunction and conventional markers of elevated LV filling pressure. Two-dimensional streamlin...
Source: The International Journal of Cardiovascular Imaging - August 20, 2019 Category: Radiology Source Type: research

Primary cardiac malignant peripheral nerve sheath tumor: a case report
We report this case for its rarity an d peculiar mode of morphologic and immunohistochemical presentation. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 20, 2019 Category: Radiology Source Type: research

Aortic regurgitation assessment by cardiovascular magnetic resonance imaging and transthoracic echocardiography: intermodality disagreement impacting on prediction of post-surgical left ventricular remodeling
AbstractTransthoracic echocardiography (TTE) is the primary clinical imaging modality for the assessment of patients with isolated aortic regurgitation (AR) in whom TTE ’s linear left ventricular (LV) dimension is used to assess disease severity to guide aortic valve replacement (AVR), yet TTE is relatively limited with regards to its integrated semi-quantitative/qualitative approach. We therefore compared TTE and cardiovascular magnetic resonance (CMR) assessmen t of isolated AR and investigated each modality’s ability to predict LV remodeling after AVR. AR severity grading by CMR and TTE were compared in 101 ...
Source: The International Journal of Cardiovascular Imaging - August 13, 2019 Category: Radiology Source Type: research

Correlation between left ventricular myocardial strain and left ventricular geometry in healthy adults: a cardiovascular magnetic resonance-feature tracking study
This study was aimed to investigate the correlation between left ventricular (LV) myocardial strain and LV geometry in healthy adults using cardiovascular magnetic resonance-feature tracking (CMR-FT). 124 gender-matched healthy adults who underwent healthy checkup using CMR cine imaging were retrospectively analyzed. Peak global radial, circumferential, longitudinal strain (GRS, GCS and GLS) for left ventricle were measured. LV geometry was assessed by the ratio of LV mass (LVM) and end-diastolic volume (EDV). GRS, GCS and GLS were 34.18  ± 6.71%, − 22.17 ± 2.28%, &min...
Source: The International Journal of Cardiovascular Imaging - August 11, 2019 Category: Radiology Source Type: research

Left atrial ejection fraction and outcomes in heart failure with preserved ejection fraction
AbstractThe aim of this study was to determine whether left atrial ejection fraction (LAEF) quantified with cardiovascular magnetic resonance (CMR) was different between heart failure with preserved ejection fraction (HFpEF) and controls, and its relation to prognosis. As part of our single-centre, prospective, observational study, 188 subjects (HFpEF n  = 140, controls n = 48) underwent phenotyping with contrast-enhanced CMR, transthoracic echocardiography, blood sampling and six-minute walk testing. LAEF was calculated using the biplane method. Atrial fibrillation (AF) was present in 43 (31%) ...
Source: The International Journal of Cardiovascular Imaging - August 9, 2019 Category: Radiology Source Type: research

Diagnostic and prognostic value of cardiac magnetic resonance in acute myocarditis: a systematic review and meta-analysis
AbstractWhile diagnostic criteria were elaborated for acute myocarditis using cardiac magnetic resonance (CMR) in 2009, studies have since examined the yield of traditional and novel CMR parameters to achieve greater accuracy and to predict clinical outcomes. The purpose of this systematic review and meta-analysis was to determine the diagnostic and prognostic value of CMR parameters for acute myocarditis. MEDLINE and EMBASE were systematically searched for original studies that reported CMR parameters in adult patients suspected of acute myocarditis. Each CMR parameter's binary prevalence, mean value and standard deviatio...
Source: The International Journal of Cardiovascular Imaging - August 5, 2019 Category: Radiology Source Type: research

Left atrial mechanics in moderate mitral valve disease: earlier markers of damage
AbstractWhile the impairment of left atrial (LA) mechanics in mitral valve disease is well known, the exact onset of reservoir, conduit, and contractile dysfunction in mitral stenosis (MS) and mitral regurgitation (MR) remains unclear. We aimed to clarify the LA deformation mechanics in patients with moderate mitral valve disease. We conducted a prospective observational study of 80 patients with moderate isolated MR, 80 patients with moderate isolated MS, and 64 age-matched controls without mitral valve disease. Strain ( ɛ) and strain rate (SR) on speckle tracking echocardiography were assessed as indicators of LA and ri...
Source: The International Journal of Cardiovascular Imaging - August 5, 2019 Category: Radiology Source Type: research

Update on MR imaging of the pulmonary vasculature
AbstractMagnetic resonance imaging (MRI) plays an increasingly important role in the non-invasive evaluation of the pulmonary vasculature. MR angiographic (MRA) techniques provide morphological information, while MR perfusion techniques provide functional information of the pulmonary vasculature. Contrast-enhanced MRA can be performed at high spatial resolution using 3D T1-weighted spoiled gradient echo sequence or at high temporal resolution using time-resolved techniques. Non-contrast MRA can be performed using 3D steady state free precession, double inversion fast spin echo, time of flight or phase contrast sequences. M...
Source: The International Journal of Cardiovascular Imaging - July 31, 2019 Category: Radiology Source Type: research

Two-dimensional speckle tracking echocardiography assessed right ventricular function and exercise capacity in pre-capillary pulmonary hypertension
AbstractResting two-dimensional speckle tracking echocardiography (2D-STE) identified right ventricular (RV) systolic function were reported to predict exercise capacity in pulmonary hypertension (PH) patients, but little attention had been payed to 2D-STE detected RV diastolic function. Therefore, we aim to elucidate and compare the relations between 2D-STE identified RV diastolic/systolic functions and peak oxygen consumption (PVO2) determined by cardiopulmonary exercise testing (CPET) in pre-capillary PH. 2D-STE was performed in 66 pre-capillary PH patients and 28 healthy controls. Linear correlation and multivariate re...
Source: The International Journal of Cardiovascular Imaging - July 31, 2019 Category: Radiology Source Type: research

Is there association between left atrial function and functional capacity in patients with uncomplicated type 2 diabetes?
In conclusion, LA phasic function and functional capacity were significantly impaired in the patien ts with DM. LA longitudinal strain, but not LA volume index, was independently related with functional capacity in the whole study population. Our results suggest that evaluation of LA function and functional capacity could detect subclinical target organ damage and prevent development of further co mplications in uncomplicated DM patients. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - July 30, 2019 Category: Radiology Source Type: research

Diagnosis of coronary artery disease in patients with atrial fibrillation using low tube voltage coronary CT angiography with isotonic low-concentration contrast agent
AbstractThis prospective study evaluated the image quality and accuracy of coronary computed tomography angiography (CCTA) for diagnosing coronary artery disease (CAD) in patients with atrial fibrillation (AF), in which CCTA used adaptive iterative dose reduction (AIDR) with a low tube voltage and low concentration of isotonic contrast agent. Sixty-eight consecutive patients with AF and suspected CAD were equally and randomly apportioned to two groups and underwent CCTA. In the experimental group, the contrast agent was iodixanol (270  mg I/mL), patients were scanned with 100 kV, and reconstruction was by AI...
Source: The International Journal of Cardiovascular Imaging - July 29, 2019 Category: Radiology Source Type: research

Impact of lesion angle on optical coherence tomography findings and clinical outcomes after drug-eluting stent implantation in curved vessels
AbstractTortuous coronary lesions are associated with adverse outcomes after implantation of bare metal or first-generation drug-eluting stents (DESs). We investigated the impact of lesion angle on vessel wall injuries and stent apposition as assessed by optical coherence tomography (OCT) after second- and newer-generation DES implantation. We investigated 95 de novo lesions treated with a single DES (62 platinum-chromium everolimus-eluting stents and 33 bioresorbable-polymer sirolimus-eluting stents). Post-intervention OCT findings were compared between angled lesions ( ≥ 45°; n = 33) and non-angled lesions (
Source: The International Journal of Cardiovascular Imaging - July 28, 2019 Category: Radiology Source Type: research

Impact of two formulas to calculate percentage diameter stenosis of coronary lesions: from stenosis models (phantom lesion model) to actual clinical lesions
This study aims to evaluate the difference between %DS assessed by QCA in two datasets, phantom lesion models and CAD patients. Ten phantom lesion models (PLMs) and 354 CAD lesions from the FIRST trial were assessed by QCA. In the latter, two scenarios were assessed: Scenario A (worst view), the most common approach in the clinical setting; and Scenario B (average of two complementary views), the standard core-laboratory analysis. In the PLMs, %DS1 and %DS2 mean  ± standard deviation (median) was 58.5 ± 21.7 (61.6) and 58.7 ± 21.6 (61.8), respectively, with a s...
Source: The International Journal of Cardiovascular Imaging - July 26, 2019 Category: Radiology Source Type: research

Patients with high left ventricular filling pressure may be missed applying 2016 echo guidelines: a pilot study
Abstract2016 guidelines for the echographic evaluation of left ventricular filling pressure (LVFP) proposed a single algorithm with limited number of criteria (E/A ratio, tricuspid regurgitation velocity, left atrial volume index and average E/e ′) mainly related to left atrial pressure. Pulmonary venous flow analysis, evaluating more specifically left ventricular end diastolic pressure (LVEDP) has been withdrawn. We aim to evaluate the proportion of patients diagnosed with normal LVFP according to 2016 recommendations, despite an abnorma l pulmonary venous flow profile suggesting high LVEDP. We prospectively studied...
Source: The International Journal of Cardiovascular Imaging - July 25, 2019 Category: Radiology Source Type: research

Evaluation of left atrial volume and function in patients with coronary slow flow phenomenon using real-time three-dimensional echocardiography
This study aimed to evaluate the left atrial (LA) volume and phasic functions using real-time three-dimensional echocardiography (RT3DE) in coronary slow flow phenomenon (CSFP) patients with preserved left ventricular ejection fraction (LVEF). 56 patients with CSFP (36 males, 20 females) and 48 controls with normal coronary flow (27 males, 21 females) were prospectively enrolled. Comprehensive transthoracic echocardiographic examination and RT3DE for the assessment of LA dynamics were performed in all participants. LA maximum, minimum, and pre-atrial contraction volumes (LAV-max, LAV-min, and LAV-preA) were obtained for ev...
Source: The International Journal of Cardiovascular Imaging - July 24, 2019 Category: Radiology Source Type: research

Subclinical left ventricular dysfunction assessed by two-dimensional speckle tracking echocardiography in asymptomatic patients with carotid stenosis
AbstractThe relationship between subclinical left ventricular (LV) dysfunction and atherosclerosis may have been underestimated in the past, which might be responsible for the high incidence of premature death in individuals with carotid stenosis. We sought to evaluate the underlying myocardial dysfunction in asymptomatic carotid stenosis patients using speckle tracking echocardiography (STE). Fifty patients with carotid stenosis  ≥ 50% and a preserved LV ejection fraction (LVEF), and 45 controls without carotid stenosis who were matched in terms of vascular comorbidities were enrolled. All participants un...
Source: The International Journal of Cardiovascular Imaging - July 23, 2019 Category: Radiology Source Type: research

Comparison of 2D vena contracta area with 3D planimetric mitral valve area in rheumatoid mitral valve disease
AbstractRheumatoid valve disease is a general health problem of developing countries, and it mainly affects after the age of 40. Assessment of the correct mitral valve area (MVA) is important for the treatment of rheumatoid valve disease. However, there are contradictions between the three-dimensional (3D) and two-dimensional (2D) methods. A measurement with 3D echocardiography is a more accurate method to measure the MVA. However, in centers without 3D echocardiography, there are some difficulties in the accurate measurement of the MVA. The aim of this study was to assess the value of 2D transesophageal echocardiography (...
Source: The International Journal of Cardiovascular Imaging - July 23, 2019 Category: Radiology Source Type: research

Denoising and artefact removal for transthoracic echocardiographic imaging in congenital heart disease: utility of diagnosis specific deep learning algorithms
AbstractDeep learning (DL) algorithms are increasingly used in cardiac imaging. We aimed to investigate the utility of DL algorithms in de-noising transthoracic echocardiographic images and removing acoustic shadowing artefacts specifically in patients with congenital heart disease (CHD). In addition, the performance of DL algorithms trained on CHD samples was compared to models trained entirely on structurally normal hearts. Deep neural network based autoencoders were built for denoising and removal of acoustic shadowing artefacts based on routine echocardiographic apical 4-chamber views and performance was assessed by vi...
Source: The International Journal of Cardiovascular Imaging - July 18, 2019 Category: Radiology Source Type: research

Left atrial enlargement as a maker of significant high-risk patent foramen ovale
AbstractLeft atrial (LA) enlargement is a marker of LA cardiopathy and, in patients with patent foramen ovale (PFO), is associated with an increased risk of ischemic stroke. The primary study outcome was the comparison of LA diameter between patients undergoing percutaneous PFO closure versus those treated conservatively. The secondary endpoints were the association of LA diameter with the Risk of Paradoxical Emboli (ROPE) score and the presence of Atrial septal aneurysm (ASA) and Right-To-Left Shunt (RLS). Retrospective analysis of clinical and instrumental data of 1040 subjects referred to a single tertiary center for PF...
Source: The International Journal of Cardiovascular Imaging - July 18, 2019 Category: Radiology Source Type: research

Could two-dimensional radial strain be considered as a novel tool to identify pre-clinical hypertrophic cardiomyopathy mutation carriers?
AbstractTreatment of overt form of hypertrophic cardiomyopathy (HCM) is often unsuccessful. Efforts are focused on a possible early identification in order to prevent or delaying the development of hypertrophy. Our aim was to find an echocardiographic marker able to distinguish mutation carriers without left ventricular hypertrophy (LVH) from healthy subjects. We evaluated 28 patients, members of eight families. Three types of mutation were recognized: MYBPC3 (five families), MYH7 (two families) and TNNT2 (one family). According to genetic (G) and phenotypic (Ph) features, patients were divided in three groups: Group A (10...
Source: The International Journal of Cardiovascular Imaging - July 17, 2019 Category: Radiology Source Type: research

Conservative gadolinium administration to patients with Duchenne muscular dystrophy: decreasing exposure, cost, and time, without change in medical management
AbstractCardiac MR (CMR) is increasingly used to assess for cardiac involvement in patients with Duchenne muscular dystrophy (DMD). The frequent use of gadolinium based contrast agents (GBCAs) has been called into question with reports of intracranial gadolinium deposition in patients receiving multiple administrations. We adopted a conservative GBCA administration policy, limiting the frequency of GBCA exposure in patients with previously documented late gadolinium enhancement. The aim of our study was to evaluate the clinical effects of this policy change. Data were retrospectively reviewed on 405 consecutive patients wi...
Source: The International Journal of Cardiovascular Imaging - July 17, 2019 Category: Radiology Source Type: research

Left atrial appendage orifice diameter measured with trans-esophageal echocardiography is independently related with peri-device leakage after Watchman device implantation
AbstractPercutaneous left atrial appendage closure (LAAC) has emerged as an alternative of stroke prevention in non-valvular atrial fibrillation (NVAF) patients. Peri-device leakage after LAAC is common. This retrospective, case –control study aimed to identify risk factors related with peri-device leakage after LAAC with Watchman devices. Patients who underwent Watchman devices implantation received trans-esophageal echocardiography (TEE) before, during and 45 days after procedure. Peri-device leakage was defined as a r esidual flow of any size detected with TEE. Patients with residual flows were compared with ...
Source: The International Journal of Cardiovascular Imaging - July 17, 2019 Category: Radiology Source Type: research

Novel mesh-derived right ventricular free wall longitudinal strain analysis by intraoperative three-dimensional transoesophageal speckle-tracking echocardiography: a comparison with conventional parameters
In this study, a novel method for FWLS analysis on 3D meshes ( “mesh surface”, MS-FWLS,) was tested for feasibility and compared to available parameters. 80 patients undergoing left-sided cardiac valve surgery with intraoperative TEE were included retrospectively. 2D-FWLS, 3D-derived (3Dd)-FWLS (assessed in optimized four-chamber views after volume analysis ) and MS-FWLS were measured and compared to conventional parameters (3Dd-TAPSE, FAC and RVEF). The mean FWLS values did not differ significantly between methods (− 19.0 ± 6.1%, − 20.0 ± 7.3%...
Source: The International Journal of Cardiovascular Imaging - July 17, 2019 Category: Radiology Source Type: research

Aortic valve calcification volumes and chronic brain infarctions in patients undergoing transcatheter aortic valve implantation
AbstractChronic silent brain infarctions, detected as new white matter hyperintensities on magnetic resonance imaging (MRI) following transcatheter aortic valve implantation (TAVI), are associated with long-term cognitive deterioration. This is the first study to investigate to which extent the calcification volume of the native aortic valve (AV) measured with cardiac computed tomography angiography (CTA) predicts the increase in chronic white matter hyperintensity volume after TAVI. A total of 36 patients (79  ± 5 years, median EuroSCORE II 1.9%, Q1–Q3 1.5 –3.4%) with severe AV stenos...
Source: The International Journal of Cardiovascular Imaging - July 15, 2019 Category: Radiology Source Type: research

Anti-inflammatory effect of statin is continuously working throughout use: a prospective three time point 18 F-FDG PET/CT imaging study
AbstractNo data exist whether statins have robust anti-inflammatory effects of atherosclerotic plaques primarily during the early treatment period or continuously throughout use. This prospective three time point18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) study of the carotid artery assessed anti-inflammatory effects of statin during the early treatment period (initiation to 3  months) and late treatment period (3 months to 1 year) and their correlation with lipid and inflammatory profile changes during a year of therapy. Nine statin-naïve stable angina patie...
Source: The International Journal of Cardiovascular Imaging - July 15, 2019 Category: Radiology Source Type: research

Normal reference values of right atrial strain parameters using three-dimensional speckle-tracking echocardiography (results from the MAGYAR-Healthy Study)
AbstractClassic echocardiographic methodologies offer limited opportunities in assessing right atrial (RA) morphology and function. Three-dimensional (3D) speckle-tracking echocardiography (3DSTE) is a novel imaging method with objective 3D capability in assessing volumetric and functional properties of heart chambers. Normal reference values of different 3DSTE-derived RA strains are not available, therefore the aim of this prospective study was to establish these parameters in healthy subjects. The present study comprised 295 healthy volunteers, from which 110 were excluded due to inadequate image quality. The final popul...
Source: The International Journal of Cardiovascular Imaging - July 11, 2019 Category: Radiology Source Type: research

Age related structural and functional changes in left ventricular performance in healthy subjects: a 2D echocardiographic study
AbstractLeft ventricular (LV) adaptation to aging is currently poorly understood. We aimed to characterize age related changes in LV structure and function by studying a large group of healthy subjects across a wide age range. Prospectively enrolled healthy volunteers (n = 778, 327 females; age 18 to 100  years, mean age 49.8 ± 18.1 years), were divided into 4 age groups: 18 to 34 years (n = 165); 35 to 49 years (n = 242), 50 to 79 years (n = 334) and ≥ 80 years (n = 40). All subjects underwent clinical examination, as well as comprehensive transthoracic echocardiogram [TTE]. Body ma...
Source: The International Journal of Cardiovascular Imaging - July 10, 2019 Category: Radiology Source Type: research

Aortic roots assessment by an automated three-dimensional transesophageal echocardiography: an intra-individual comparison
AbstractTo evaluate the accuracy, reproducibility, and transcatheter heart valve (THV) sizing efficiency of an automated 3-dimensional transesophageal echocardiographic (3D-TEE) post-processing software in the assessments of aortic roots, intra-individually compared with multidetector computed tomography (MDCT). We prospectively studied 67 patients with normal aortic roots. We measured diameters of aortic annulus (AA), sinus of Valsalva (SOV), and sino-tubular junction (STJ) by full-automated and semi-automated methods using 3D-TEE datasets, then compared them to corresponding transthoracic echocardiography and MDCT values...
Source: The International Journal of Cardiovascular Imaging - July 10, 2019 Category: Radiology Source Type: research

Topical issue: advanced imaging and endovascular treatment in pulmonary artery diseases
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - July 9, 2019 Category: Radiology Source Type: research

Non-invasive CT-derived fractional flow reserve and static rest and stress CT myocardial perfusion imaging for detection of haemodynamically significant coronary stenosis
AbstractComputed tomography derived fractional flow reserve (FFRCT) and computed tomography stress myocardial perfusion imaging (CTP) are techniques to assess haemodynamic significance of coronary stenosis. To compare the diagnostic performance of FFRCT and static rest/stress CTP in detecting fractional flow reserve (FFR) defined haemodynamically-significant stenosis (FFR  ≤ 0.8). Fifty-one patients (96 vessels) with suspected coronary artery disease from a single institution planned for elective invasive-angiography prospectively underwent research indicated 320-detector-CT-coronary-angiography (CTA) and ...
Source: The International Journal of Cardiovascular Imaging - July 3, 2019 Category: Radiology Source Type: research

Coronary artery disease risk reclassification by a new acoustic-based score
AbstractTo determine the potential of a non-invasive acoustic device (CADScor ®System) to reclassify patients with intermediate pre-test probability (PTP) and clinically suspected stable coronary artery disease (CAD) into a low probability group thereby ruling out significant CAD. Audio recordings and clinical data from three studies were collected in a single database. In a ll studies, patients with a coronary CT angiography indicating CAD were referred to coronary angiography. Audio recordings of heart sounds were processed to construct a CAD-score. PTP was calculated using the updated Diamond-Forrester score and pat...
Source: The International Journal of Cardiovascular Imaging - July 3, 2019 Category: Radiology Source Type: research

Cardiac magnetic resonance-tissue tracking for the early prediction of adverse left ventricular remodeling after ST-segment elevation myocardial infarction
AbstractCardiac magnetic resonance-tissue tracking (CMR-TT)-derived myocardial strain after ST-elevation myocardial infarction (STEMI) is related to adverse cardiac events. We aimed to investigate the feasibility of CMR-TT for the early prediction of adverse left ventricular (LV) remodeling after STEMI. We retrospectively searched our institution ’s STEMI registry for patients who underwent reperfusion therapy, post-reperfusion CMR within 1 week after STEMI, and follow-up CMR. CMR-TT analysis was performed using cine imaging of post-reperfusion CMR. Adverse LV remodeling was defined as an increase in end-diastolic LV...
Source: The International Journal of Cardiovascular Imaging - July 2, 2019 Category: Radiology Source Type: research

Aortic CT angiography using the double region of interest timing bolus technique: feasibility of 80  kVp scanning in lean patients
This study was approved by the institutional ethics committee, and all patients provided written informed consent. We prospectively included 165 patients from July 2018 to February 2019. We used an 80 kVp protocol when the maximal tube current did not exceed the limit using automatic exposure control; otherwise, 100 kVp was selected. The scan parameters for aortic CTA were determined from the test scan data. Enhancement at six points of the aortoiliac arteries and noise at the bifurcation level were measured. We compared the enhancement and signal to noise ratio (SNR) using Student’st-test. The tube voltage...
Source: The International Journal of Cardiovascular Imaging - July 1, 2019 Category: Radiology Source Type: research

Multimodal imaging of a self-expanding transcatheter aortic valve replacement (TAVR) procedure in a reanimated human heart and post-implant analyses
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - June 27, 2019 Category: Radiology Source Type: research

Procedure planning and device positioning for left atrial appendage occlusion: insights from multi detector-row computed tomography with 3D fusion
AbstractTo compare planned and achieved device position in patients undergoing left atrial appendage occlusion (LAAO). It is unclear how devices used for LAAO position themselves compared to what is planned. All patients undergoing LAAO at our institution had pre- and post-procedural multi detector-row computed tomography (MDCT) at 3  months (N = 52). Using dedicated software, both datasets were fused to superimpose the left atria in all planes. The effective device position was traced on the post-procedural MDCT and then imported in the pre-procedural dataset to allow comparisons. Planned and effective ...
Source: The International Journal of Cardiovascular Imaging - June 26, 2019 Category: Radiology Source Type: research

Applicability of quantitative flow ratio for rapid evaluation of intermediate coronary stenosis: comparison with instantaneous wave-free ratio in clinical practice
AbstractQuantitative flow ratio (QFR) is an image-based fractional flow reserve (FFR) computed by three-dimensional quantitative coronary angiography and estimated flow velocity. Several studies have reported that QFR was rapidly computed within approximately 5  min and had a good diagnostic performance as compared with FFR. However, studies comparing QFR with instantaneous wave-free ratio (iFR) as an index with a prognostic value comparable to that of FFR are limited. Thus, we investigated the applicability of QFR with respect to iFR, both being easy-to- measure indices not requiring pharmacological hyperaemic induct...
Source: The International Journal of Cardiovascular Imaging - June 25, 2019 Category: Radiology Source Type: research

Visual assessment of right ventricular function by echocardiography: how good are we?
AbstractThe complex anatomy and physiology of the right ventricle (RV) is a major limitation of visual echocardiographic gradation of RV systolic function (RVF). The aim of this study was to compare visual assessment ( “eyeballing”) of RVF with gold standard magnetic resonance imaging (MRI)-derived right ventricular ejection fraction (RVEF). Medical professionals from a range of clinical settings and with varying degrees of echocardiography experience were recruited via an online ultrasound teaching platform. In an anonymized web-based test, participants graded RVF in 10 patients with varying degrees of RVF via...
Source: The International Journal of Cardiovascular Imaging - June 23, 2019 Category: Radiology Source Type: research

Usefulness of layer-specific strain in diagnosis of coronary artery disease in patients with stable angina pectoris
AbstractNovel software allows for layer-specific evaluation of myocardial strain by speckle tracking echocardiography (2DSTE). However, the potential of layer-specific strain at rest for diagnosing coronary artery disease (CAD) in patients with suspected stable angina pectoris (SAP) remains unknown. Our objective was  to evaluate the usefulness of layer-specific 2DSTE at rest for diagnosis of CAD in patients with SAP. In total, 285 patients referred with clinically suspected SAP, normal ejection fraction, and no previous cardiac history were prospectively enrolled. All patients were examined by echocardiography , incl...
Source: The International Journal of Cardiovascular Imaging - June 20, 2019 Category: Radiology Source Type: research

Invasive coronary angiography findings across the CAD-RADS classification spectrum
AbstractThe recently introduced coronary artery disease reporting and data system (CAD-RADS) evaluated by computed tomography and based on stenosis severity, might not adequately reflect the complexity of CAD. We explored the relationship between CAD-RADS and the spatial distribution, burden, and complexity of lesions by invasive coronary angiography (ICA). Stable patients who underwent coronary computed tomography angiography (CCTA) and ICA comprised the study population. Patients were classified according to the CAD-RADS: 0, No plaque; 1, 1 –24% stenosis; 2, 25–49%; 3, 50–69%; 4A, 70–99%; 4B, left...
Source: The International Journal of Cardiovascular Imaging - June 20, 2019 Category: Radiology Source Type: research

Neointimal tissue characterization after implantation of drug-eluting stents by optical coherence tomography: quantitative analysis of optical density
AbstractNormalized optical density (NOD) measured by optical coherence tomography represents neointimal maturity after coronary stent implantation and is correlated with morphologic information provided by both light and electron microscopy. We aimed to test the hypothesis that even second generation drug-eluting stents (DESs) are problematic in terms of neointimal maturity. We implanted bare-metal stents (BMS: n  = 14), everolimus-eluting stents (EESs: n = 15) or zotarolimus-eluting stents (ZESs: n = 12) at 41 sites in 32 patients with stable coronary artery disease. OCT was perfo...
Source: The International Journal of Cardiovascular Imaging - June 18, 2019 Category: Radiology Source Type: research

Comparison of fractional flow reserve and angiographic characteristics after balloon angioplasty in de novo coronary lesions
AbstractLesion characteristics determined by angiography after balloon angioplasty such as residual dimeter stenosis (DS) or dissection type has been used to determine the treatment method of drug-coated balloon (DCB) or metal stent for de novo coronary lesions. The aim of this study is to identify angiographic and functional mismatch using residual DS, dissection type and fractional flow reserve (FFR). Baseline and post-balloon parameters were obtained from 151 patients with 167 lesions. Angiographically significant parameters after balloon angioplasty are residual DS  >  30% or dissection type C or more....
Source: The International Journal of Cardiovascular Imaging - June 17, 2019 Category: Radiology Source Type: research

Pediatric heterozygous familial hypercholesterolemia patients have locally increased aortic pulse wave velocity and wall thickness at the aortic root
AbstractFamilial hypercholesterolemia (FH) is an autosomal dominant disorder that affects 1 in 250 people. Aortic stiffness, measured by pulse wave velocity (PWV), is an independent predictor for cardiovascular events. Young FH patients are a unique group with early vessel wall disease that may serve to elucidate the determinants of aortic stiffness. We hypothesized that young FH patients would have early changes in aortic stiffness compared to healthy, age- and sex-matched reference values. Thirty-three FH patients (  ≥ 7 years age; mean age 14.6 ± 3.3 years; 26/33 on statin...
Source: The International Journal of Cardiovascular Imaging - June 16, 2019 Category: Radiology Source Type: research