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International Journal of Cardiovascular Imaging

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https://www.readbyqxmd.com/read/28823060/cardiac-death-in-patients-with-left-ventricular-aneurysm-remodeling-and-myocardial-viability-by-gated-99m-tc-mibi-spect-and-gated-18-f-fdg-pet
#1
Weixue Wang, Xiang Li, Congna Tian, Shihua Zhao, Marcus Hacker, Xiaoli Zhang
(1) To evaluate the prognostic value of LV remodeling parameters in patients with LV aneurysm by gated SPECT (GSPECT), gated PET (GPET) and CMR; (2) to evaluate the impact of myocardial viability and LV remodeling on the long-term cardiac survival in patients with LV aneurysm. One hundred and twenty-six consecutive patients underwent GPET, GSPECT and CMR within two weeks, with a mean follow-up of 3.9 ± 1.5 years. End-diastolic volume (EDV, mL) and end-systolic volume (ESV, mL) measured by GPET, GSPECT and CMR and corrected for BSA; EDVI and ESVI were calculated...
August 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28819869/new-echocardiographic-parameters-in-the-diagnosis-of-heart-failure-with-preserved-ejection-fraction
#2
Monika Špinarová, Jaroslav Meluzín, Helena Podroužková, Radka Štěpánová, Lenka Špinarová
Heart failure with preserved ejection fraction (HFpEF) is a serious clinical disease. The pathophysiology of HFpEF is complex, and specific diagnostic criteria have evolved over time. Limited data are available on the quantification of diastolic function using two-dimensional real-time echocardiography, and a simple parameter has not yet been established. The aim of this work is to evaluate new echocardiographic parameters-the diastolic wall strain of the posterior wall (DWS PW) and the vortex formation time (VFT)...
August 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28808934/a-drug-coated-balloon-effectively-treated-in-stent-restenosis-due-to-a-stent-fracture
#3
Yusuke Oba, Hiroshi Funayama, Motoki Fukutomi, Kazuomi Kario
No abstract text is available yet for this article.
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28808885/the-association-of-epicardial-fat-volume-with-coronary-characteristics-and-clinical-outcome
#4
Kohichiro Iwasaki, Norio Urabe, Atsushi Kitagawa, Toshihiko Nagao
Recent studies have demonstrated the relationship between epicardial fat volume (EFV) and coronary atherosclerosis, but their association is modest at best. Our purpose is to elucidate the association of epicardial fat with coronary characteristics and clinical outcome. We performed coronary computed tomographic angiography in 651 patients and divided them into three groups according to tertiles of EFV; low-tertile (n = 215), 36-123 ml; middle-tertile (n = 218), 124-165 ml; high-tertile (n = 218), 166-489 ml...
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28808846/age-related-changes-in-morphology-of-left-atrial-appendage-in-patients-with-atrial-fibrillation
#5
Yukina Hirata, Kenya Kusunose, Hirotsugu Yamada, Rikuto Shimizu, Yuta Torii, Susumu Nishio, Yoshihito Saijo, Shoichiro Takao, Takeshi Soeki, Masataka Sata
The purpose of this study was to evaluate the relationship between age and frequency of left atrial appendage (LAA) morphology in patients with atrial fibrillation (AF) compared with sinus rhythm (SR). We enrolled 145 AF patients, and 199 SR patients for the control group without any cardiovascular disease. LAA volume index (LAAVi) and morphology were assessed by electrocardiogram-gated computed tomography angiography. LAA morphology was classified into "chicken wing" or "non-chicken wing" according to the previously described classification...
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28808841/prognostic-significance-of-myocardial-energy-expenditure-and-myocardial-efficiency-in-patients-with-heart-failure-with-reduced-ejection-fraction
#6
Mehmet S Cetin, Elif H Ozcan Cetin, Ugur Canpolat, Hatice Sasmaz, Ahmet Temizhan, Sinan Aydogdu
In heart failure with reduced ejection fraction (HFrEF) patients, myocardial blood flow (MBF), myocardial energy expenditure (MEE), myocardial efficiency has been poorly evaluated because of the necessity of invasive procedures in the determination of these parameters. Transthoracic echocardiography (TTE) can provide reliable data for MEE, MBF (via coronary sinus (CS) flows). Also, myocardial efficiency can be evaluated by the MEE to MBF ratio. We aim to assess MBF, MEE and energy efficiency and the prognostic value of these parameters in HFrEF...
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28808838/comparison-of-coronary-sinus-diameter-z-scores-in-normal-fetuses-and-fetuses-with-persistent-left-superior-vena-cava-plsvc
#7
Mingming Ma, Yan Tan, Ran Chen, Yankai Mao, Bei Wang, Bowen Zhao
To establish Z-score reference ranges for coronary sinus (CS) diameter in normal fetuses and explore the diagnostic value of CS Z-score in fetuses with persistent left superior vena cava (PLSVC). Study of 235 normal fetuses and 30 fetuses with PLSVC was involved. Noncardiac biometrical parameters included biparietal diameter (BPD), femoral length (FL), heart area (HA), gestation age (GA). The coronary sinus systolic and diastolic diameter (CSDs and CSDd ) were measured at the end of systole and diastole. CSDs and CSDd Z-score models were constructed by using linear regression analysis with Non-cardiac biometrical parameters as independent variables...
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28803421/quantitative-coronary-plaque-analysis-predicts-high-risk-plaque-morphology-on-coronary-computed-tomography-angiography-results-from-the-romicat-ii-trial
#8
Ting Liu, Pál Maurovich-Horvat, Thomas Mayrhofer, Stefan B Puchner, Michael T Lu, Khristine Ghemigian, Pieter H Kitslaar, Alexander Broersen, Amit Pursnani, Udo Hoffmann, Maros Ferencik
Semi-automated software can provide quantitative assessment of atherosclerotic plaques on coronary CT angiography (CTA). The relationship between established qualitative high-risk plaque features and quantitative plaque measurements has not been studied. We analyzed the association between quantitative plaque measurements and qualitative high-risk plaque features on coronary CTA. We included 260 patients with plaque who underwent coronary CTA in the Rule Out Myocardial Infarction/Ischemia Using Computer Assisted Tomography (ROMICAT) II trial...
August 12, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28776114/quantitative-evaluation-of-longitudinal-strain-in-layer-specific-myocardium-in-patients-with-preeclampsia
#9
Juan Cong, Yong Lee, Xiuxiu Fu, Zhibin Wang, Wugang Wang, Junfang Lee
Preeclampsia (PE) remains a main cause of maternal morbidity and mortality during pregnancy. Vascular spasm and ischemic damage play the primary role in the presentation of PE. The aim of this study was to assess the longitudinal strain (LS) in each of the three myocardial layers in patients with PE using the layer-specific strain. Forty-five PE women and forty-one normotensive pregnant women were included. Layer-specific LS were assessed in endocardium, mid-myocardium, and epicardium by 2-dimensional (2D) speckle-tracking echocardiography (STE)...
August 3, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28770456/detection-of-myocardial-iron-overload-by-two-dimensional-speckle-tracking-in-patients-with-beta-thalassaemia-major-a-combined-echocardiographic-and-t2-segmental-cmr-study
#10
Fausto Pizzino, Antonella Meloni, Anna Terrizzi, Tommaso Casini, Anna Spasiano, Carlo Cosmi, Massimo Allò, Concetta Zito, Scipione Carerj, Giovanni Donato Aquaro, Gianluca Di Bella, Alessia Pepe
We aimed to evaluate the role of two-dimensional speckle tracking imaging (2DSTI) in detecting early changes of myocardial deformation in patients affected by thalassemia major (TM) and its relation with myocardial iron overload (MIO) detected by T2* cardiovascular magnetic resonance (CMR). We studied 28 TM patients (15 males, 37.4 ± 10 years). All patients underwent CMR and echocardiography in the same day. Segmental and global T2* values were measured. Values of global longitudinal strain (GLS) were derived from the three apical views, while radial and circumferential strain were obtained as average strain from the short axis views at basal, mid and apical level...
August 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28770455/feasibility-of-a-single-beat-prospective-ecg-gated-cardiac-ct-for-comprehensive-evaluation-of-aortic-valve-disease-using-a-256-detector-row-wide-volume-ct-scanner-an-initial-experience
#11
Jin Young Kim, Young Joo Suh, Suyon Chang, Dong Jin Im, Yoo Jin Hong, Hye-Jeong Lee, Jin Hur, Young Jin Kim, Byoung Wook Choi
The aim of our study was to investigate the feasibility of single-beat prospective electrocardiogram (ECG)-gated cardiac computed tomography (CT) using a 256-detector row wide-volume CT scanner for functional and anatomical evaluation of the aortic valve (AV) and coronary arteries in patients with AV disease. A total of 50 patients who underwent cardiac CT scan with a wide-volume 256-detector row CT scanner for the evaluation of AV and aorta were retrospectively enrolled. Cardiac CT was performed using the prospective ECG-gated acquisition mode, and AV image quality was analyzed using a four-point grading system...
August 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28770454/acute-pulmonary-edema-in-patients-with-reduced-left-ventricular-ejection-fraction-is-associated-with-concentric-left-ventricular-geometry
#12
Junichi Imanishi, Kenji Kaihotsu, Sachiko Yoshikawa, Makoto Nishimori, Naohiko Sone, Tomoyuki Honjo, Masanori Iwahashi
Although acute pulmonary edema (APE) is common in patients with heart failure (HF) with preserved ejection fraction (EF), its pathogenesis in patients with HF with reduced EF (HFrEF) is not completely understood. The purpose of our study was to explore the contributions of left ventricular (LV) geometry to understand the difference between HFrEF patients with or without APE. We studied 122 consecutive acute decompensated HF patients with HFrEF (≤40%). APE was defined as acute-onset dyspnea and radiographic alveolar edema requiring immediate airway intervention...
August 2, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28766162/intramyocardial-dissecting-hematoma-in-anterior-wall-st-elevation-myocardial-infarction-impact-on-left-ventricular-remodeling-and-prognosis
#13
Letizia Spinelli, Eugenio Stabile, Giuseppe Giugliano, Carmine Morisco, Caterina Anna Giudice, Massimo Imbriaco, Mario Santoro, Giovanni Esposito, Bruno Trimarco
Intramyocardial dissecting hematoma is an uncommon complication of myocardial infarction potentially leading to cardiac rupture. The aim of the present study was to investigate coronary reperfusion results, left ventricular (LV) function recovery and remodeling and clinical outcomes in patients with anterior STEMI complicated by intramyocardial hematoma. We prospectively studied 87 patients (mean age 59 ± 10 years; 88% male) with anterior STEMI (42 with intramyocardial hematoma) in order to evaluate coronary reperfusion results, LV remodeling (≥15% increase in end-systolic volume) and clinical outcomes (cardiac death, non-fatal reinfarction, and hospitalization for congestive heart failure) at 24 months...
August 1, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28752400/normal-references-of-right-ventricular-strain-values-by-two-dimensional-strain-echocardiography-according-to-the-age-and-gender
#14
Jae-Hyeong Park, Jin-Oh Choi, Seung Woo Park, Goo-Yeong Cho, Jin Kyung Oh, Jae-Hwan Lee, In-Whan Seong
Right ventricular (RV) strain values by 2-dimensional strain echocardiography (STE) can be used as objective markers of RV systolic function. However, there is little data about normal reference RV strain values according to age and gender. We measured normal RV strain values by STE. RV strain values were analyzed from the digitally stored echocardiographic images from NORMAL (Normal echOcardiogRaphic diMensions and functions in KoreAn popuLation) study for the measurement of normal echocardiographic values performed in 23 Korean university hospitals...
July 27, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28748418/left-ventricular-function-in-patients-with-hypertrophic-cardiomyopathy-and-its-relation-to-myocardial-fibrosis-and-exercise-tolerance
#15
Dimitrios Maragiannis, Paulino A Alvarez, Mohamad G Ghosn, Karen Chin, Jeremy J Hinojosa, John M Buergler, Dipan J Shah, Sherif F Nagueh
We sought to determine the relation between myocardial extracellular volume (ECV), left ventricular (LV) diastolic function, and exercise tolerance in patients with hypertrophic cardiomyopathy (HCM). Forty five HCM patients with an ejection fraction >50% and no previous septal reduction therapy underwent imaging by CMR and transthoracic echocardiography. CMR was used to quantify LV volumes, mass, EF, LA volumes, scar burden, pre and post contrast T1 relaxation times and ECV. Echocardiography was used to measure outflow tract gradients, mitral inflow and annular velocities, circumferential strain, systolic, early and late diastolic strain rates...
July 26, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28735413/echocardiographic-and-hemodynamic-assessment-for-predicting-early-clinical-events-in-severe-acute-mitral-regurgitation
#16
Shin Watanabe, Kenneth Fish, Guillaume Bonnet, Carlos G Santos-Gallego, Lauren Leonardson, Roger J Hajjar, Kiyotake Ishikawa
The diagnostic role of echocardiographic and hemodynamic assessment in acute mitral regurgitation (AMR) remains unclear. The central question of this study was to determine if echocardiographic and hemodynamic parameters can predict early clinical events in AMR. AMR was induced by percutaneously severing the mitral valve chordae tendineae in 39 Yorkshire pigs. Immediately after AMR induction, echocardiographic and hemodynamic exams were performed, and compared between those who died and those who survived within 30-days of the procedure...
July 22, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28733755/automatic-regional-analysis-of-myocardial-native-t1-values-left-ventricle-segmentation-and-aha-parcellations
#17
Hsiao-Hui Huang, Chun-Yu Huang, Chiao-Ning Chen, Yun-Wen Wang, Teng-Yi Huang
Native T1 value is emerging as a reliable indicator of abnormal heart conditions related to myocardial fibrosis. Investigators have extensively used the standardized myocardial segmentation of the American Heart Association (AHA) to measure regional T1 values of the left ventricular (LV) walls. In this paper, we present a fully automatic system to analyze modified Look-Locker inversion recovery images and to report regional T1 values of AHA segments. Ten healthy individuals participated in the T1 mapping study with a 3...
July 21, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28721548/left-atrium-passive-ejection-fraction-is-the-most-sensitive-index-of-type-2-diabetes-mellitus-related-cardiac-changes
#18
Yongning Shang, Xiaochun Zhang, Weiling Leng, Xiaotian Lei, Liu Chen, Ziwen Liang, Jian Wang
The aims of this study were to use cardiovascular magnetic resonance (CMR) cine to assess left atrium (LA) and left ventricle (LV) function and structure in normotensive type 2 diabetes mellitus (T2DM) patients and to identify the most sensitive index of those T2DM-related cardiac changes. Fifty T2DM patients with normotension (25 males, age 54.7 ± 8.7 years, duration of diabetes: 7.5 ± 5.1 years) and 35 controls (16 males, age: 52.2 ± 13.2 years) were prospectively enrolled. All patients were scanned using CMR four- and two-chamber long-axis cine to assess LA and LV structure and function...
July 18, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28712069/left-atrial-dysfunction-as-a-determinant-of-pulmonary-hypertension-in-patients-with-severe-aortic-stenosis-and-preserved-left-ventricular-ejection-fraction
#19
Andreea Calin, Anca D Mateescu, Monica Rosca, Carmen C Beladan, Roxana Enache, Simona Botezatu, Iulian Cosei, Cosmin Calin, Marian Simion, Carmen Ginghina, Andreea C Popescu, Bogdan A Popescu
In patients with severe aortic stenosis (AS), the presence of pulmonary hypertension (PH) has been linked to a poor prognosis. We aimed to assess the main determinants of PH in patients with severe AS and preserved left ventricular ejection fraction (LVEF). We prospectively enrolled 108 consecutive patients with isolated severe AS (indexed aortic valve area <0.6 cm(2)/m(2)) and LVEF >50%, in sinus rhythm. Left atrial (LA) function was assessed using longitudinal deformation parameters (by speckle tracking echocardiography)...
July 15, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28712068/qualitative-angiographic-and-quantitative-myocardial-perfusion-assessment-using-fluorescent-cardiac-imaging-during-graded-coronary-artery-bypass-stenosis
#20
Christian Detter, Detlef Russ, Jan Felix Kersten, Hermann Reichenspurner, Sabine Wipper
Intraoperative graft assessment in coronary artery bypass (CAB) grafting is important to avoid early graft failure. This study aimed to evaluate the accuracy of fluorescent cardiac imaging (FCI) for intraoperative qualitative angiographic and quantitative myocardial perfusion assessment during graded CAB stenosis compared to coronary angiography (CA). After CAB grafting to the left anterior descending coronary artery, graded distal bypass stenoses were created in ten pigs by 25, 50, 75, and 100% flow reduction assessed by transit-time flow measurement (TTFM)...
July 15, 2017: International Journal of Cardiovascular Imaging
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