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International Journal of Cardiovascular Imaging

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https://www.readbyqxmd.com/read/29667079/fetal-regional-myocardial-strain-rate-in-the-membranous-ventricular-septum-changes-with-gestational-age-and-the-left-ventricular-mass-and-predictive-value-for-a-complete-membranous-ventricular-septum-without-defect
#1
Li-Juan Zhang, Ke-Qi Chen, Yun-Yan Shi, Xiao-Zhi Zheng
To describe the fetal regional myocardial strain rate in the membranous ventricular septum across gestation and to determine their predictive value for a complete membranous ventricular septum (without defect) after delivery. In 1150 fetuses, the peak systolic strain rate (SRs), peak early diastolic strain rate (SRe) and peak late diastolic strain rate (SRa) in the membranous ventricular septum were measured at four time points across gestation (18-20, 24-26, 30-32 and 36-38 weeks). The integrity of the interventricular septum was examined at 12 weeks' postnatal age...
April 17, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29667078/impact-of-different-coarctation-therapies-on-aortic-stiffness-phase-contrast-mri-study
#2
Michal Schäfer, Gareth J Morgan, Max B Mitchell, Michael Ross, Alex J Barker, Kendall S Hunter, Brian Fonseca, Michael DiMaria, Daniel Vargas, D Dunbar Ivy, Neil Wilson, Lorna P Browne
Coarctation of the aorta has been associated with increased thoracic aortic stiffness in adolescents and young adults. However, the effects of different therapeutic strategies on aortic stiffness in a young population is unknown. This study aimed to non-invasively assess aortic stiffness between different repair or intervention strategies in patients with coarctation of the aorta. Forty-nine coarctation patients who underwent either surgery (n = 26), balloon angioplasty (n = 14), or stent implantation (n = 12), and 26 age- and size-matched normotensive healthy controls underwent evaluation of thoracic aortic stiffness and flow hemodynamics via phase-contrast cardiac magnetic resonance...
April 17, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29663178/validation-of-contrast-enhanced-time-resolved-magnetic-resonance-angiography-in-pre-ablation-planning-in-patients-with-atrial-fibrillation-comparison-with-traditional-technique
#3
Tarek Zghaib, Adeel Shahid, Chiara Pozzessere, Kristin K Porter, Linda C Chu, John Eng, Hugh Calkins, Ihab R Kamel, Saman Nazarian, Stefan L Zimmerman
Bolus timing is critical to optimal magnetic resonance angiography (MRA) acquisitions but can be challenging in some patients. Our purpose was to evaluate whether contrast-enhanced time-resolved magnetic resonance angiography (TR-MRA), a dynamic multiphase sequence that does not rely on bolus timing, is a viable alternative method to conventional 3D fast-long angle shot contrast-enhanced magnetic resonance angiography (CE-MRA). Coronal subtracted conventional CE-MRA images in 50 consecutive patients presenting for pre-atrial fibrillation ablation pulmonary venous (PV) mapping were compared with 50 TR-MRA images performed in 50 subsequent patients...
April 16, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29663177/intravascular-ultrasound-assessment-of-the-effects-of-rotational-atherectomy-in-calcified-coronary-artery-lesions
#4
Sung Sik Kim, Myong Hwa Yamamoto, Akiko Maehara, Novalia Sidik, Kohei Koyama, Colin Berry, Keith G Oldroyd, Gary S Mintz, Margaret McEntegart
We sought to clarify intravascular ultrasound (IVUS) features of rotational atherectomy (RA) of calcified lesions. IVUS was performed post-RA and post-stent in 38 lesions and analyzed every 1 mm. Pre-intervention IVUS was performed when the IVUS catheter crossed the lesion (n = 11). Calcium Index was average calcium angle multiplied by calcium length. We compared lowest (n = 13), middle (n = 13), and highest (n = 12) Calcium Index tertiles. Reverberations (multiple reflections from calcium) with a concave-shaped lumen in the post-RA IVUS were considered to represent RA-related calcium modification...
April 16, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29654481/analysis-of-anomalous-origin-of-coronary-arteries-by-coronary-angiography-in-chinese-patients-with-coronary-artery-disease
#5
Yuan Tian, Ying Yuan, Hang Lu, Liang Xu, Wei Xian Yang, Chao Wei Mu, Hai Bo Liu, Jue Chen, Ke Fei Dou, Yi Da Tang, Jin Qing Yuan, Yong Jian Wu, Hong Bing Yan, Bo Xu, Shu Bin Qiao, Yue Jin Yang, Run Lin Gao, Hong Qiu
With the development of coronary angiography for the diagnosis of coronary artery disease, its clinical significance in detecting coronary artery anomalies and evaluating the seriousness is attracting more attention. In the study we aimed to assess the prevalence of anomalous origin of coronary arteries in a Chinese population who underwent coronary angiography for coronary artery disease, and explore any patterns in the common variants and typical anomalies, especially the potentially serious ones. Patients who underwent coronary angiography from January 2013 to December 2016 in Fuwai Hospital were included...
April 13, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29654480/optimizing-right-ventricular-focused-four-chamber-views-using-three-dimensional-imaging-a-comparative-magnetic-resonance-based-study
#6
Myriam Amsallem, HongQuan Lu, Xiu Tang, Nadia L Do Couto Francisco, Yukari Kobayashi, Kegan Moneghetti, Hadas Shiran, Ian Rogers, Ingela Schnittger, David Liang, François Haddad
Obtaining focused right ventricular (RV) apical view remains challenging using conventional two-dimensional (2D) echocardiography. This study main objective was to determine whether measurements from RV focused views derived from three-dimensional (3D) echocardiography (3D-RV-focused) are closely related to measurements from magnetic resonance (CMR). A first cohort of 47 patients underwent 3D echocardiography and CMR imaging within 2 h of each other. A second cohort of 25 patients had repeat 3D echocardiography to determine the test-retest characteristics; and evaluate the bias associated with unfocused RV views...
April 13, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29651658/cardiovascular-imaging-2017-in-the-international-journal-of-cardiovascular-imaging
#7
EDITORIAL
Johan H C Reiber, Amer Alaiti, Hiram G Bezerra, Johan De Sutter, Paul Schoenhagen, Arthur E Stillman, Nico R L Van de Veire
No abstract text is available yet for this article.
April 13, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29626283/left-ventricular-energy-loss-and-wall-shear-stress-assessed-by-vector-flow-mapping-in-patients-with-hypertrophic-cardiomyopathy
#8
Ling Ji, Wenzhi Hu, Yonghong Yong, Hongping Wu, Lei Zhou, Di Xu
The 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...
April 6, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29611048/use-of-speckle-tracking-in-the-evaluation-of-late-subclinical-myocardial-damage-in-survivors-of-childhood-acute-leukaemia
#9
Elena Guadalupe Corella Aznar, Ariadna Ayerza Casas, Lorenzo Jiménez Montañés, Maria Ángeles Carlota Calvo Escribano, José Ignacio Labarta Aizpún, Pilar Samper Villagrasa
Heart 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 least 10 years since diagnosis...
April 2, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29605902/three-dimensional-full-automated-software-in-the-evaluation-of-the-left-ventricle-function-from-theory-to-clinical-practice
#10
Valentina Barletta, Rocio Hinojar, Alejandra Carbonell, Ariana González-Gómez, Iacopo Fabiani, Vitantonio Di Bello, José Julio Jiménez-Nacher, José Zamorano, Covadonga Fernández-Golfín
Left ventricular systolic function evaluation is an essential part of all transthoracic echocardiographic (TTE) studies. 3D echocardiography (3DE) is superior to 2D and is recommended as the method of choice. However, since it is time consuming and requires training, it is rarely performed. Different automatic analysis software tries to overcome these limitations but they need to be accurate and reproducible before they can be used clinically. The aim of this study was to test the accuracy and reproducibility of new 3D automatic quantitative software in everyday clinical practice...
March 31, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29605901/right-ventricular-septomarginal-trabeculation-hypertrophy-is-associated-with-disease-severity-in-patients-with-pulmonary-arterial-hypertension
#11
Yang Dong, Jiayu Sun, Dan Yang, Juan He, Wei Cheng, Ke Wan, Hong Liu, Andreas Greiser, Xiaoyue Zhou, Yuchi Han, Yucheng Chen
To characterize the morphological change in the right ventricle (RV) of patients with pulmonary artery hypertension (PAH) and further explore the correlation between septomarginal trabeculation (SMT) and right ventricular (RV) function, myocardial fibrosis, and exercise capacity in patients with PAH. Sixty untreated PAH patients were prospectively included from May 2016 to April 2017. All patients underwent comprehensive clinical evaluation and cardiac magnetic resonance (CMR). The area and diameter of the basal segment of SMT, and the mass of SMT were measured on cine SSFP images...
March 31, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29605900/computed-tomography-showing-formation-of-caseous-calcification-of-the-mitral-annulus-over-time
#12
Yosuke Hari, Arudo Hiraoka, Hidenori Yositaka, Taichi Sakaguchi
Caseous calcification of the mitral annulus (CCMA) is a rare variant of mitral annulus calcification. Herein, we present computed tomographic images of formation of CCMA over time.
March 31, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29600485/diffuse-fibrosis-is-common-in-the-left-but-not-in-the-right-ventricle-in-patients-with-transposition-of-the-great-arteries-late-after-atrial-switch-operation
#13
Nerejda Shehu, Christian Meierhofer, Daniel Messroghli, Naira Mkrtchyan, Stefan Martinoff, Peter Ewert, Heiko Stern
In adult patients with transposition of the great arteries (TGA) late after atrial switch operation (AtSO), each of the ventricles is faced with a profoundly different pressure regimen from the one they are meant to support in normal conditions. The extent of diffuse fibrosis of the right ventricle (RV) and left ventricle (LV) in these patients remains incompletely investigated. Aim of this study was to quantify the degree of fibrosis of the unloaded LV and of the overloaded RV by determining the myocardial extracellular volume (ECV) with non-invasive techniques as T1 mapping...
March 29, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29582238/influence-of-tube-potential-on-quantitative-coronary-plaque-analyses-by-low-radiation-dose-computed-tomography-a-phantom-study
#14
Chunhong Wang, Yuliang Liao, Haibin Chen, Xin Zhen, Jianhong Li, Yikai Xu, Linghong Zhou
Previous studies have shown that employing the low dose computed tomography (CT) technique based on low tube potential reduces the radiation dose required for the coronary artery examination protocol. However, low tube potential may adversely influence the CT number of plaque composition. Therefore, we aimed to determine whether quantitative atherosclerotic plaque analysis by a multi-slice, low radiation dose CT protocol using 80 kilovolts (kV) yields results comparable to those of the standard 120 kV protocol...
March 26, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29574626/cardiac-computed-tomography-compared-with-two-dimensional-transesophageal-echocardiography-for-the-detection-and-assessment-of-atrial-septal-pouches
#15
Mateusz K Hołda, Agata Krawczyk-Ożóg, Mateusz Koziej, Wiesław Pawlik, Danuta Sorysz, Karolina Wszołek, Dariusz Dudek, Wiesława Klimek-Piotrowska
The aim of this study is to compare the two-dimensional transesophageal echocardiography (2D-TEE) with multi-slice computed tomography (MSCT) and with autopsied material to evaluate the ability and precision of the imaging methods for the detection and assessment of septal pouch (SP). One hundred and fifty patients that underwent both 2D-TEE and MSCT and 50 autopsied human hearts were investigated. In MSCT, the interatrial septum was classified as a left SP in 37.3%, right SP in 3.3%, and patent foramen ovale (PFO) channel in 3...
March 24, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29572584/noise-reduction-technology-reduces-radiation-dose-in-chronic-total-occlusions-percutaneous-coronary-intervention-a-propensity-score-matched-analysis
#16
Davide Maccagni, Susanna Benincasa, Barbara Bellini, Luciano Candilio, Enrico Poletti, Mauro Carlino, Antonio Colombo, Lorenzo Azzalini
Chronic total occlusions (CTO) percutaneous coronary intervention (PCI) is associated with high radiation dose. Our study aim was to evaluate the impact of the implementation of a noise reduction technology (NRT) on patient radiation dose during CTO PCI. A total of 187 CTO PCIs performed between February 2016 and May 2017 were analyzed according to the angiographic systems utilized: Standard (n = 60) versus NRT (n = 127). Propensity score matching (PSM) was performed to control for differences in baseline characteristics...
March 23, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29564585/functional-classification-of-aortic-regurgitation-using-cardiac-computed-tomography-comparison-with-surgical-inspection
#17
Hyun Jung Koo, Joon-Won Kang, Jeong A Kim, Joon Bum Kim, Sung-Ho Jung, Suk Jung Choo, Cheol Hyun Chung, Jae Won Lee, Tae-Hwan Lim, Dong Hyun Yang
In patients with aortic regurgitation (AR), a precise preoperative assessment of aortic valve (AV) pathology is important if AV repair or sparing operation is an alternative option. The aim of this study was to assess the diagnostic accuracy of computed tomography (CT) for evaluating the AR mechanism compared with surgical inspection. 59 patients with AR who underwent AV surgery and preoperative cardiac CT were evaluated. AR mechanism was classified into type 1 (aortic dilatation or cusp perforation), type 2 (prolapsed cusp) and type 3 (cusp retraction)...
March 21, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29564584/implication-of-coronary-ct-angiography-combined-with-four-dimensional-speckle-tracking-echocardiography-for-predicting-major-adverse-cardiac-events
#18
Xiaohua Yin, Rong Xu, Yingchun Wang, Tao Cheng, Hui Zhou
Coronary computed tomography angiography (CCTA) can provide abundant information about the anatomy of the coronary artery. However, this modality is limited in evaluation of myocardial function. Four-dimensional speckle tracking echocardiography (4DSTE) is a novel and sensitive technique for quantitative evaluation of myocardial deformation. We estimated the value of these imaging modalities to predict the risk of MACE in 209 patients with suspected coronary artery disease(CAD) after a median follow-up of 727 days...
March 21, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29556943/imaging-the-myocardial-ischemic-cascade
#19
REVIEW
Arthur E Stillman, Matthijs Oudkerk, David A Bluemke, Menko Jan de Boer, Jens Bremerich, Ernest V Garcia, Matthias Gutbertlet, Pim van der Harst, W Gregory Hundley, Michael Jerosch-Herold, Dirkjan Kuijpers, Raymond Y Kwong, Eike Nagel, Stamatios Lerakis, John Oshinski, Jean-François Paul, Riemer H J A Slart, Vinod Thourani, Rozemarijn Vliegenthart, Bernd J Wintersperger
Non-invasive imaging plays a growing role in the diagnosis and management of ischemic heart disease from its earliest manifestations of endothelial dysfunction to myocardial infarction along the myocardial ischemic cascade. Experts representing the North American Society for Cardiovascular Imaging and the European Society of Cardiac Radiology have worked together to organize the role of non-invasive imaging along the framework of the ischemic cascade. The current status of non-invasive imaging for ischemic heart disease is reviewed along with the role of imaging for guiding surgical planning...
March 19, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29556942/feasibility-of-myocardial-flow-reserve-prediction-without-the-use-of-dynamic-data-from-myocardial-perfusion-positron-emission-tomography
#20
Hidenobu Hashimoto, Yoshimitsu Fukushima, Shin-Ichiro Kumita, Takeshi Tomiyama, Tomonari Kiriyama
Quantification of myocardial flow reserve (MFR) provides diagnostic value for detection of cardiovascular artery disease. However, the common calculation method for MFR requires dynamic acquisition and specific software. The study aimed to predict coronary artery disease by simpler calculation of myocardial count without the use of dynamic data from13 N-ammonia myocardial perfusion positron emission tomography (MP-PET). This study included 40 consecutive patients suspected of ischemic heart disease and 7 healthy controls (34 men and 13 women, 66 ± 12 years)...
March 19, 2018: International Journal of Cardiovascular Imaging
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