Effect of long term CPAP therapy on cardiac parameters assessed with cardiac MRI
AbstractThe obstructive sleep apnoea syndrome (OSAS) is a disorder with a high prevalence and is associated with an elevated cardiovascular risk and increased morbidity and mortality. For longitudinal studies and functional analysis cardiac MRI is regarded as the gold standard. Aim of this study was to evaluate the long-term effect of continuous positive airway pressure (CPAP) therapy on cardiac functional parameters with cardiac Magnetic Resonance Imaging (cMRI). 54 patients with OSAS (mean apnea hypopnea index-AHI: 31) were prospectively enrolled in this study and cMRI was performed before and after 7  months of CPA...
Source: The International Journal of Cardiovascular Imaging - September 13, 2020 Category: Radiology Source Type: research

Dynamic monitoring of active calcification in atherosclerosis by 18 F –NaF PET imaging
The objective was to dynamically monitor the progression of atherosclerotic plaques in ApoE−/− mice with18F –NaF PET imaging. The ApoE−/− mice were used to develop atherosclerosis models, and the C57BL/6  J mice were used as control.18F –NaF PET was performed when the mice were 12, 20, and 30 weeks of age. Serum lipids and lipoproteins profiles, inflammatory cytokines, and calcification factors were tested by ELISA. The lipid distribution, morphology, and calcification of plaque were evaluated by Oil Red O, HE, and alizarin red staining. The correlation between imaging and the ...
Source: The International Journal of Cardiovascular Imaging - September 13, 2020 Category: Radiology Source Type: research

Temporal changes of incomplete stent apposition  during early phase after everolimus-eluting stent implantation: serial optical coherence tomography analyses at 2-week and 4-month
AbstractThe healing process of acute incomplete stent apposition (ISA) in the early phase after stent implantation has not been well understood. We evaluated the temporal changes of ISA during the early phase after everolimus-eluting stent (EES) implantation using serial optical coherence tomography (OCT) analyses.  Serial OCT examinations were performed immediately post-stenting and 2-week and 4-month after EES implantation for patients with ST-segment elevation myocardial infarction. At the most proximal cross-section of the implanted stent, the prevalence of ISA and maximum ISA distance were serially eval uate...
Source: The International Journal of Cardiovascular Imaging - September 13, 2020 Category: Radiology Source Type: research

Risk factors for right ventricular dysfunction in patients with lymphangioleiomyomatosis
In this study, we found that RV dysfunction was presented in LAM patients, although left ventricular dysfunction was not significantly obvious. The main influence factors of RVEF were PVR and hypoxia. RT-3DE is a low-cost and noninvasive way to evaluate RV function in LAM patients. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 13, 2020 Category: Radiology Source Type: research

The association between aortic valve calcification, cardiovascular risk factors, and cardiac size and function in a general population
AbstractTo determine the presence and extent of aortic valve calcification (AVC) quantified by non-contrast cardiac computed tomography (NCCT), to determine the association between traditional cardiovascular risk factors and AVC score, and to evaluate the association between AVC and cardiac size and function assessed by echocardiography, in a general population aged 65 –75 years. A random sample of 2060 individuals were invited to undergo NCCT through which their AVC score was assessed. Individuals with an AVC score ≥ 300 arbitrary units (AU) were invited for a transthoracic echocardiography tog...
Source: The International Journal of Cardiovascular Imaging - September 10, 2020 Category: Radiology Source Type: research

Diagnostic analysis of new quantitative parameters of low-dose dynamic myocardial perfusion imaging with CZT SPECT in the detection of suspected or known coronary artery disease
AbstractThe goal of this study is to explore and evaluate the diagnostic values of myocardial blood flow (MBF), myocardial flow reserve (MFR) and relative flow reserve (RFR) obtained with low-dose dynamic CZT SPECT for patients with suspected or known coronary artery disease (CAD). Fifty-seven consecutive patients who underwent low-dose dynamic CZT SPECT and CAG were enrolled. MBF, MFR and RFR were calculated on the vessel level with dedicated quantitative software, and the difference and correlation of each parameter was compared according to the reference standard of stenosis  ≥ 50% or ≥&thinsp...
Source: The International Journal of Cardiovascular Imaging - September 9, 2020 Category: Radiology Source Type: research

Accuracy and sensitivity of three-dimensional echocardiography to detect changes in right ventricular volumes: comparison study with cardiac magnetic resonance
AbstractWe aimed to investigate the ability of three-dimensional transthoracic echocardiography (3DE) to detect changes in RV volumes compared to cardiac magnetic resonance (CMR). Eighty-five subjects including 45 with no known cardiac disease and 40 patients with a variety of cardiac diseases were included. Two- and three-dimensional echocardiography as well as CMR of the RV was performed before and after infusion of on average two  litres of saline. Examinations were analysed with estimation of RV dimensions, volumes and ejection fraction (RVEF). Intra- and inter-examiner variability was evaluated in ...
Source: The International Journal of Cardiovascular Imaging - September 9, 2020 Category: Radiology Source Type: research

Prevalence and morphological changes of carotid kinking and coiling in growth: an echo-color Doppler study of 2856 subjects between aged 0 to 96  years
Abstract Extracranial internal carotid artery (EICA) kinking and coiling are the most frequently reported carotid anomalies in the literature. Embryogenic and acquired causes for such anomalies have been postulated but the prevalence of kinking and coiling has not been well characterized across age categories. The aim of this study is to evaluate the prevalence of EICA coiling and kinking among different age groups to better understand its potential causes and changes during the course of life. A total of 2856 subjects aged 0 to 96  years were studied by echo-color Doppler (ECD). Morphology and anatomical anomalie...
Source: The International Journal of Cardiovascular Imaging - September 9, 2020 Category: Radiology Source Type: research

Strain analysis using feature tracking cardiac magnetic resonance (FT-CMR) in the assessment of myocardial viability in chronic ischemic patients
AbstractThe purpose of this study is to  test the capability of a commercially available feature tracking-cardiac magnetic resonance (FT-CMR) strain analysis software module in differentiating between viable and non-viable myocardium in chronic ischemic patients. Thirty chronic ischemic patients and 10 healthy volunteers were enrolled. C ine images were used for peak circumferential and radial strains quantification using dedicated FT-CMR software. Global strain was compared between patients and controls. In patients, segmental strain was compared in viable and non-viable myocardium determined by late gadolinium enhan...
Source: The International Journal of Cardiovascular Imaging - September 8, 2020 Category: Radiology Source Type: research

Impact of transcatheter aortic valve replacement on left ventricular hypertrophy, diastolic dysfunction and quality of life in patients with preserved left ventricular function
AbstractSevere aortic stenosis (AS) is associated with left ventricular (LV) hypertrophy and diastolic dysfunction (LVDD). Due to positive impact on transvalvular hemodynamics, transcatheter aortic valve replacement (TAVR) is expected to improve LV remodeling, LVDD and heart failure (HF)-related quality-of-life (QoL). We identified patients with severe AS and LV ejection fraction (LVEF)  ≥ 50% who underwent TAVR. We reviewed pre-procedure, 1-month and 1-year post-TAVR transthoracic echocardiograms to assess LV volumetric changes and diastolic function. QoL was assessed by the Kansas City Cardiomyopathy Que...
Source: The International Journal of Cardiovascular Imaging - September 8, 2020 Category: Radiology Source Type: research

Cardiac imaging phenotype in patients with coronavirus disease 2019 (COVID-19): results of the cocarde study
In conclusion, biological myocardial injury in COVID 19 has low functional impact on left ventricular systolic function. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 8, 2020 Category: Radiology Source Type: research

Clinical outcomes in patients with left ventricle trabeculation or noncompaction
AbstractTrabeculation exhibits highly varied presentations, whereas noncompaction (NC) is a specific disease entity based arithmetically on wall thickness. We aimed to evaluate the clinical implications of trabeculation and its relevance to outcomes. A total of 296 patients (age 63  ± 12 years; 64% men) with trabeculation who underwent echocardiography were retrospectively identified between January 2011 and December 2012. Analyses were conducted on distinguished trabeculation which was divided into NC (maximum noncompacted/compacted ratio ≥ 2.0) or hypertrabeculat ion (HT) (ratio 
Source: The International Journal of Cardiovascular Imaging - September 7, 2020 Category: Radiology Source Type: research

Speckle tracking echocardiography and left ventricular twist mechanics: predictive capabilities for noncompaction cardiomyopathy in the first degree relatives
AbstractIn non-compaction cardiomyopathy (NCCM), there are several echocardiographic and cardiac magnetic resonance (CMR)-based quantitative diagnostic indices, current criteria mainly placed on morphological features, and none of the diagnostic indices includes left ventricular (LV) function. LV function and hemodynamics could be normal in NCCM patients. Evaluation of left ventricular function at the subclinical stage, strain echocardiographic parameters could be used alternative to standard echocardiographic examinations. The aim of this study to evaluate; NCCM patients, their first-degree relatives, ventricular motion p...
Source: The International Journal of Cardiovascular Imaging - September 7, 2020 Category: Radiology Source Type: research

Evaluation of left atrial and ventricular myocardial functions by three-dimensional speckle tracking echocardiography in patients with euthyroid Hashimoto ’s thyroiditis
AbstractHashimoto ’s Thyroiditis (HsT) is one of the most frequently occurring autoimmune diseases, characterized by lymphocytic infiltration, destruction and fibrosis of thyroid tissue and the presence of antibodies to thyroid peroxidase and thyroglobulin. The effects of euthyroid Hashimoto’s thyroiditis (eHsT) on cardiovascular system are unclear. We aimed to identify if any deteriorations in LA and LV myocardial functions in patients with eHsT by 3D-STE in the current study. Fifty eight patients with eHsT and 60 age- and gender-matched controls were enrolled into the study. All participants underwent lab ora...
Source: The International Journal of Cardiovascular Imaging - September 7, 2020 Category: Radiology Source Type: research

Are there any subclinical myocardial dysfunctions in subjects with aortic valve sclerosis? A 3D-speckle tracking echocardiography study
Abstract Aortic valve sclerosis (AVS) is defined as calcified and thickened aortic leaflets without restriction of leaflet motion. We have not found any studies that previously assessed the effect of AVS on myocardial functions with three dimensional-speckle tracking echocardiography (3D-STE). Therefore, we aimed to identify any early changes in left atrial (LA) myocardial dynamics and/or left ventricular (LV) systolic functions in patients with AVS using 3D-STE. Seventy-five patients with AVS and 80 age- and gender-matched controls were enrolled into the study. The baseline clinical characteristics of the study patien...
Source: The International Journal of Cardiovascular Imaging - September 3, 2020 Category: Radiology Source Type: research

Left atrial myocardial function and compliance in pre-eclampsia with preserved left ventricular systolic and diastolic function
This study aimed to evaluate the usefulness of LA myocardial function indices in detecting early cardiac alterations in PE. Using speckle tracking echocardiography (STE), LA volumetric and myocardial parameters were acquired in PE women with preserved left ventricular (LV) systolic and diastolic function based on standard criteria and normotensive controls. LA compliance was assessed by the ratio of reservoir strain (LASr) to the estimated LA pressure (E/e ’). Subtle systolic and diastolic abnormalities were identified as LV global longitudinal strain 
Source: The International Journal of Cardiovascular Imaging - September 3, 2020 Category: Radiology Source Type: research

Extensive myocardial calcification mimicking giant honey-bee associated with cardiac hydatid cyst
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 3, 2020 Category: Radiology Source Type: research

Pulmonary valve in carcinoid disease: be suspicious of functional assessment
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - September 3, 2020 Category: Radiology Source Type: research

Characterization of arterial plaque composition with dual energy computed tomography: a simulation study
AbstractTo investigate the feasibility of quantifying the chemical composition of coronary artery plaque in terms of water, lipid, protein, and calcium contents using dual-energy computed tomography (CT) in a simulation study. A CT simulation package was developed based on physical parameters of a clinical CT scanner. A digital thorax phantom was designed to simulate coronary arterial plaques in the range of 2 –5 mm in diameter. Both non-calcified and calcified plaques were studied. The non-calcified plaques were simulated as a mixture of water, lipid, and protein, while the calcified plaques also contained calc...
Source: The International Journal of Cardiovascular Imaging - September 1, 2020 Category: Radiology Source Type: research

Validation and update of the minimal risk tool in patients suspected of chronic coronary syndrome
AbstractRisk stratification in patients with suspected coronary artery disease (CAD) is important. Recently, the minimal-risk-tool (MRT) was developed to identify individuals with low CAD risk despite symptoms in order to avoid unnecessary testing. We aimed to validate and update the MRT-model in a contemporary cohort. The Dan-NICAD trial cohort, consisting of 1675 consecutive patients referred for coronary computed tomography angiography (CTA), was used to calculate the MRT-score based on the published fitted variable coefficients from the PROMISE and SCOT-HEART trials. Minimal risk was defined as zero calcium score, no c...
Source: The International Journal of Cardiovascular Imaging - August 31, 2020 Category: Radiology Source Type: research

Early left atrial dysfunction in idiopathic pulmonary fibrosis patients without chronic right heart failure
AbstractNo data are actually available regarding the left atrial (LA) functional assessment by two-dimensional speckle tracking echocardiography (2D-STE) in early-stage idiopathic pulmonary fibrosis (IPF). The primary end-point of our study was to assess whether global LA peak strain (GLAPS), measured by 2D-STE analysis, may detect early alterations in LA function in IPF patients without right heart failure (RHF). Between September 2017 and January 2019, 50 consecutive IPF patients (73.8 ± 6.8 years, 36 males) without chronic RHF and 30 controls matched by age, sex and cardiovascular risk factors, were enrolled...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Image quality and radiation dose of different scanning protocols in DSCT cardiothoracic angiography for children with tetralogy of fallot
AbstractThe aim of this study was to investigate the image quality and radiation dose of different scanning protocols in dual-source CT cardiothoracic angiography for children with tetralogy of Fallot (TOF). Seventy-five consecutive children with known or suspected TOF were enrolled to undergo prospective ECG-triggering sequential dual-source CT (DSCT) cardiothoracic angiography. According to the scanning protocols, these patients were randomly divided into 3 groups: fixed delay time (FDT, n  = 25, group A), automatic bolus-tracking (ABT, n = 25, group B) and manual bolus-tracking (MBT, n&thinsp...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Predictors of zero X ray procedures in supraventricular arrhythmias ablation
AbstractTo evaluate predictors of zero-X ray procedures for supraventricular arrhythmias (SVT) using minimally fluoroscopic approach (MFA). Patients referred for RF catheter ablation of SVT were admitted for a MFA with an electro-anatomical navigation system or a conventional fluoroscopic approach (ConvA). Exclusion criterion was the need to perform a transseptal puncture. 206 patients (98 men, age 53  ± 19 years) underwent an EP study, 93 (45%) with an MFA and 113 (55%) with a ConvA. Fifty-five had no inducible arrhythmias (EPS). Fifty-four had AV nodal reentrant tachycardia (AVNRT), 49 patients ...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Contemporary usefulness of pulmonary venous flow parameters to estimate left ventricular end-diastolic pressure on transthoracic echocardiography
AbstractMeasurement of pulmonary venous flow (PVF) parameters can be used to estimate left ventricular end-diastolic pressure (LVEDP) on transthoracic echocardiography. Despite that, 2016 American Society of Echocardiography (ASE)/European Association of Cardiovascular Imaging (EACVI) algorithm gave a secondary role to PVF to assess left ventricular filling pressure. We aimed to test correlations between several PVF parameters, including novel measurements, with LVEDP and to analyze whether PVF parameters have an incremental usefulness over ASE/EACVI algorithm to estimate LVEDP. Seventy-two patients that underwent left and...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Value of myocardial work for assessment of myocardial adaptation to increased afterload in patients with high blood pressure at peak exercise
AbstractNon-invasive myocardial work (MW) indices are superior to global longitudinal strain (GLS) to assess left ventricular (LV) mechanics in situations where afterload is abnormally high. The rotational motion of the apex provides an accurate index of LV contractility. To date, there are no data about MW values during stress echocardiography (SE), particularly for the apex. Our study aims at assessing MW indices at peak exercise to better understand LV mechanics in patients with high peak systolic blood pressure (SBP). A total of 81 patients without structural or ischemic heart disease referred for SE between January an...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Maximum calcium thickness is a useful predictor for acceptable stent expansion in moderate calcified lesions
AbstractContemporary debulking devices such as rotational or orbital atherectomy can modify severe calcified lesions before stent implantation. Actually, we occasionally experience stent underexpansion without debulking devices in not severe but moderate calcified lesions although we expect good stent expansion. We aimed to investigate useful calcium parameters correlated with stent expansion in moderate calcified lesions. We enrolled 50 consecutive moderate calcified lesions in 47 patients who underwent optical coherence tomography (OCT) guided percutaneous coronary intervention (PCI) between January 2017 and March 2019. ...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Left ventricular global longitudinal strain in bicupsid aortic valve patients: head-to-head comparison between computed tomography, 4D flow cardiovascular magnetic resonance and speckle-tracking echocardiography
AbstractLeft ventricular global longitudinal strain (LVGLS) analysis is a sensitive measurement of myocardial deformation most often done using speckle-tracking transthoracic echocardiography (TTE). We propose a novel approach to measure LVGLS using feature-tracking software on the magnitude dataset of 4D flow cardiovascular magnetic resonance (CMR) and compare it to dynamic computed tomography (CT) and speckle tracking TTE derived measurements. In this prospective cohort study 59 consecutive adult patients with a bicuspid aortic valve (BAV) were included. The study protocol consisted of TTE, CT, and CMR on the same day. I...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Chronic stent recoil in severely calcified coronary artery lesions. A serial optical coherence tomography study
AbstractChronic second-generation drug-eluting stent recoil in severely calcified coronary lesions has not been studied. We aimed to evaluate chronic stent recoil by optical coherence tomography (OCT) in severely calcified lesions treated with thin strut stents after rotational atherectomy. In 28 lesions (26 patients with 23% on hemodialysis) treated with everolimus-eluting stents after rotational atherectomy, baseline and 8-month follow-up OCT were compared. Stent recoil was defined as  >10% decrease in stent area from baseline to follow-up. Overall, there was no change in minimal stent area (6.0 mm2 [5.0, 8.1] ...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Deterioration of longitudinal, circumferential, and radial myocardial strains during acute coronary flow reduction: which direction of strain should be analyzed for early detection?
AbstractLongitudinal myocardial strain is considered to deteriorate in the early ischemic stage compared to circumferential and radial strains because the subendocardial inner oblique fibers are generally directed along the longitudinal axis. However, it is unclear whether the decrease in longitudinal strain precedes a decrease in circumferential and radial strains during acute coronary flow reduction. The left anterior descending artery was gradually narrowed in 13 open-chest dogs. Whole-wall and subendocardial longitudinal, circumferential, and radial strains were analyzed at baseline and during flow reduction. Peak syst...
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Preoperative evaluation of caseous calcification of the mitral annulus by TrueVue transillumination rendering
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Traumatic type A aortic dissection mimicking as coarctation of aorta: assessment by echocardiography and computed tomography
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 19, 2020 Category: Radiology Source Type: research

Epithelioid hemangioendothelioma of the right atrium invaded the superior vena cava: case report and review of literature
We present a rare case of EHE of the right atrium invaded the superior vena cava. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 17, 2020 Category: Radiology Source Type: research

The impact of hydrostatic pressure on the result of physiological measurements in various coronary segments
AbstractThe effect of hydrostatic pressure on physiological intracoronary measurements is usually ignored in the daily clinical practice. Our aim was to investigate this effect on Pd/Pa (distal/aortic pressure) and FFR (fractional flow reserve). 41 FFR measurements between 0.7 and 0.9 were selected. The difference in the height of the orifice and that of the sensor was defined in mm on the basis of 3D coronary reconstruction. Resting Pd/Pa and FFR were adjusted by subtracting the hydrostatic pressure gradient from the distal pressure. Height measurements were also performed from 2D lateral projections for each coronary seg...
Source: The International Journal of Cardiovascular Imaging - August 16, 2020 Category: Radiology Source Type: research

Assessing the left atrium of childhood cancer survivors
AbstractSurvivors of childhood cancer are at risk of cancer therapy-related cardiac dysfunction (CTRCD) characterized by systolic impairment, with little known about diastolic function. Left atrial strain (LAS) is a surrogate measure of left ventricular filling. We hypothesized that survivors (1) have lower LAS versus controls, and (2) survivors exposed to higher anthracycline dosage have even lower LAS. Cross-sectional study of 45 survivors exposed to anthracyclines ≥ 1 year after chemotherapy and 45 healthy controls. Echo variables included mitral spectral and tissue Doppler, left ventricular ejection frac...
Source: The International Journal of Cardiovascular Imaging - August 15, 2020 Category: Radiology Source Type: research

Evaluation of biventricular function in patients with COVID-19 using speckle tracking echocardiography
AbstractA new infectious outbreak sustained by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is now spreading all around the world. The aim of this study was to evaluate the prognostic value of left ventricular global longitudinal strain (LV-GLS) and right ventricular longitudinal strain (RV-LS) in patients with coronavirus disease 2019 (COVID-19). In this prospective, single-center study, data were gathered from patients treated for COVID-19 between April 15 and April 30, 2020. Two-dimensional echocardiography (2-DE) and speckle tracking echocardiography (STE) images were obtained for all patients. Patients...
Source: The International Journal of Cardiovascular Imaging - August 14, 2020 Category: Radiology Source Type: research

Value of echocardiography for mini-invasive per-atrial closure of perimembranous ventricular septal defect
AbstractThe purpose of this study was to assess the value of echocardiography for intraoperative guidance during closure of perimembranous ventricular septal defects (pmVSD) and to assess outcomes of these patients. We identified and assessed 78 patients who underwent 2- and 3-dimensional echocardiography-guided mini-invasive per-atrial closure of pmVSD in the cardiac surgery department of our institution, from February 2016 to August 2018, and 76 patients who underwent transcatheter closure of VSD guided by fluoroscopy at the pediatric department (percutaneous control group). All the patients underwent echocardiography. T...
Source: The International Journal of Cardiovascular Imaging - August 13, 2020 Category: Radiology Source Type: research

Echocardiography-guided tricuspid valve replacement by extracted extracellular matrix in post-traumatic tricuspid regurgitation
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 13, 2020 Category: Radiology Source Type: research

Comparison of 3D and 2D late gadolinium enhancement magnetic resonance imaging in patients with acute and chronic myocarditis
AbstractWe compared a fast, single breath-hold three dimensional LGE sequence (3D LGE) with an established two dimensional multi breath-hold sequence (2D LGE) and evaluated image quality and the amount of myocardial fibrosis in patients with acute and chronic myocarditis. 3D LGE and 2D LGE (both spatial resolution 1.5  × 1.5 mm2, slice-thickness 8  mm, field of view 350 × 350 mm2) were acquired in 25 patients with acute myocarditis (mean age 40  ± 18 years, 7 female) and 27 patients with chronic myocarditis (mean age 44 ± ...
Source: The International Journal of Cardiovascular Imaging - August 12, 2020 Category: Radiology Source Type: research

Distribution of myocardial work in arterial hypertension: insights from non-invasive left ventricular pressure-strain relations
AbstractA index of non-invasive myocardial work (MWI) can account for pressure during the assessment of cardiac function, potentially separating the influence of loading conditions from the influence of the underlying tissue remodelling. The aim is to assess LV function accounted for loading and explore hypertensive MWI distribution by comparing healthy individuals to hypertensive patients without and with localized basal septal hypertrophy (BSH). An echocardiogram was performed in 170 hypertensive patients and 20 healthy individuals. BSH was defined by a basal-to-mid septal wall thickness ratio  ≥ 1.4. LV...
Source: The International Journal of Cardiovascular Imaging - August 11, 2020 Category: Radiology Source Type: research

Per-lesion versus per-patient analysis of coronary artery disease in predicting the development of obstructive lesions: the Progression of AtheRosclerotic PlAque DetermIned by Computed TmoGraphic Angiography Imaging (PARADIGM) study
Abstract To determine whether the assessment of individual plaques is superior in predicting the progression to obstructive coronary artery disease (CAD) on serial coronary computed tomography angiography (CCTA) than per-patient assessment. From a multinational registry of 2252 patients who underwent serial CCTA at a  ≥ 2-year inter-scan interval, patients with only non-obstructive lesions at baseline were enrolled. CCTA was quantitatively analyzed at both the per-patient and per-lesion level. Models predicting the development of an obstructive lesion at follow up using either the per-patient or per-lesi...
Source: The International Journal of Cardiovascular Imaging - August 9, 2020 Category: Radiology Source Type: research

Prevalence and quantitative assessment of macrophages in coronary plaques
AbstractAlthough optical coherence tomography (OCT) proved to be able to identify macrophage clusters, there are no available data on the possibility to obtain reproducible measurements of their circumferential extension and location. The purpose of the present post-hoc analysis of the CLIMA study was to revise the clinical and demographic variables of patients having coronary plaques with macrophages and to investigate the reproducibility of their quantitative assessment. A total of 577 patients out of 1003 undergoing OCT showed macrophage accumulation. Three groups were identified; group 1 (426 patients) without macropha...
Source: The International Journal of Cardiovascular Imaging - August 9, 2020 Category: Radiology Source Type: research

Physiology and coronary artery disease: emerging insights from computed tomography imaging based computational modeling
AbstractImprovements in spatial and temporal resolution now permit robust high quality characterization of presence, morphology and composition of coronary atherosclerosis in computed tomography (CT). These characteristics include high risk features such as large plaque volume, low CT attenuation, napkin-ring sign, spotty calcification and positive remodeling. Because of the high image quality, principles of patient-specific computational fluid dynamics modeling of blood flow through the coronary arteries can now be applied to CT and allow the calculation of local lesion-specific hemodynamics such as endothelial shear stre...
Source: The International Journal of Cardiovascular Imaging - August 9, 2020 Category: Radiology Source Type: research

Tibetan patients with hepatic hydatidosis can tolerate hypoxic environment without incident increase of pulmonary hypertension: an echocardiography study
AbstractUse of echocardiography to evaluate the characteristics of right heart and pulmonary artery of Tibetans with hepatic hydatidosis living in a high plateau area. We recruited 222 Tibetan adults diagnosed with hydatidosis from June 2016 to June 2017 in Shiqu and Seda areas of Tibet; 40 healthy control from the same area, denoted as the high plateau group. We also include 755 Healthy adults of Han nationality living in the plain from the EMINCA study as the low altitude group. Compared to high plateau group, hydatidosis individuals showed decreased RVADed, RVTDed, increased E(T)/A(T) and reduced RVFAC and TAPSE (p  
Source: The International Journal of Cardiovascular Imaging - August 5, 2020 Category: Radiology Source Type: research

The association of left ventricular end-diastolic pressure with global longitudinal strain and scintigraphic infarct size in ST-elevation myocardial infarction patients undergoing primary percutaneous coronary intervention
AbstractLeft ventricular end-diastolic pressure (LVEDP) is an independent predictor for prognosis in ST-elevation myocardial infarction (STEMI) patients. We aimed to investigate the relationship of admission LVEDP measured after a successful primary percutaneous coronary intervention (pPCI) with scintigraphic infarct size (IS) and global longitudinal strain (GLS), a strong predictor of IS, in STEMI patients. A total of 62 consecutive patients with STEMI were enrolled in the study. LVEDP measurements were performed after pPCI in patients who had TIMI-3 flow. Echocardiography was performed 24  h after pPCI and repeated ...
Source: The International Journal of Cardiovascular Imaging - August 5, 2020 Category: Radiology Source Type: research

Validation and application of OCT tissue attenuation index for the detection of neointimal foam cells
AbstractNeointimal infiltration with foamy macrophages is recognized as an early and important sign of de-novo atherosclerosis after stent implantation (neoatherosclerosis). Recent histopathological studies have proven that automated quantification of signal attenuation using intravascular optical coherence tomography (OCT) imaging allows for sensitive identification of macrophages in native atherosclerotic disease. Whether this is true for neointimal foam cells in the setting of neoatherosclerosis remains unknown. Autopsy samples of stented coronary arteries (n  = 13 cases) were evaluated by histology and OC...
Source: The International Journal of Cardiovascular Imaging - August 5, 2020 Category: Radiology Source Type: research

T1 mapping in the assessment of endomyocardial fibrosis
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 5, 2020 Category: Radiology Source Type: research

Long-term prognosis and predictors of outcomes after negative stress echocardiography
AbstractNegative stress echocardiography (NSE) is associated with low cardiovascular morbidity and overall mortality. We aimed to determine the clinical and echocardiographic predictors of overall and cardiovascular outcomes following NSE. Patients who underwent SE between 2013 and 2017 were reviewed. Patients with a history of solid organ transplant or being evaluated for transplant, history of end-stage renal or liver disease, and positive SE were excluded. NSE results were divided into negative diagnostic if patient reached target heart rate (THR) and had no wall motion abnormality (WMA) at rest or stress; negative non-...
Source: The International Journal of Cardiovascular Imaging - August 4, 2020 Category: Radiology Source Type: research

Cardiac magnetic resonance derived atrial function in patients with a Fontan circulation
AbstractTo assess atrial function in Fontan patients using cardiac MRI (CMR) and determine the relationships between atrial function, hemodynamics, and clinical outcomes. Two center chart review identified all Fontan patients with technically adequate CMR to assess atrial function within 1  year of cardiac catheterization and age-matched controls with CMR. Atrial reservoir, conduit, and pump global longitudinal strain and strain rate measurements were determined by CMR. Univariate and stepwise multivariable analysis were conducted to detect associations of atrial function measures wi th ventricular end diastolic press...
Source: The International Journal of Cardiovascular Imaging - August 3, 2020 Category: Radiology Source Type: research

Echocardiographic photorealistic imaging of leiomyomatosis intravascularis
We present a case of patient with leiomyomatosis intravascularis. To diagnose, we used 3D photorealistic imaging which allowed us better visualisation of pathological structures as well as planning the surgical procedure in greater detail. The main advantage of this technique is the possibility to move the virtual light source and thus visualize the specific part of the heart. (Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - August 1, 2020 Category: Radiology Source Type: research

Mycotic aneurysm of the proximal LAD successfully excluded with covered stents
(Source: The International Journal of Cardiovascular Imaging)
Source: The International Journal of Cardiovascular Imaging - July 31, 2020 Category: Radiology Source Type: research