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Journal of Cardiovascular Computed Tomography

Lukas Lambert, Josef Marek, Zdenka Fingrova, Stepan Havranek, Petr Kuchynka, Vladimir Cerny, Jan Simek, Andrea Burgetova
OBJECTIVE: Catheter ablation (CA) is an established therapy for selected patients with atrial fibrillation (AF), but predictors of CA ablation outcome are still not fully elucidated. The aim of the study was to identify structural and morphological parameters from computed tomography (CT) as predictors of successful CA of AF in a single center prospective cohort. METHODS: An analysis of CT scans dedicated to LA evaluation was performed in 99 patients (63 ± 8 years old, 70% males, 59% paroxysmal AF) scheduled for CA of AF...
June 18, 2018: Journal of Cardiovascular Computed Tomography
Ersilia M DeFilippis, Michael T Caton, Michael L Steigner
No abstract text is available yet for this article.
June 18, 2018: Journal of Cardiovascular Computed Tomography
Todd C Villines
No abstract text is available yet for this article.
June 18, 2018: Journal of Cardiovascular Computed Tomography
Daniele Andreini, Saima Mushtaq, Gianluca Pontone, Edoardo Conte, Jeroen Sonck, Carlos Collet, Marco Guglielmo, Andrea Baggiano, Daniela Trabattoni, Stefano Galli, Piero Montorsi, Cristina Ferrari, Franco Fabbiocchi, Stefano De Martini, Andrea Annoni, Maria Elisabetta Mancini, Alberto Formenti, Marco Magatelli, Marta Resta, Elisa Consiglio, Giuseppe Muscogiuri, Cesare Fiorentini, Antonio L Bartorelli, Mauro Pepi
BACKGROUND: Recent studies demonstrated a significant improvement in the diagnostic performance of coronary CT angiography (CCTA) for the evaluation of in-stent restenosis (ISR). However, coronary stent assessment is still challenging, especially because of beam-hardening artifacts due to metallic stent struts and high atherosclerotic burden of non-stented segments. Adenosine-stress myocardial perfusion assessed by CT (CTP) recently demonstrated to be a feasible and accurate tool for evaluating the functional significance of coronary stenoses in patients with suspected coronary artery disease (CAD)...
June 18, 2018: Journal of Cardiovascular Computed Tomography
Marleen Vonder, Niels R van der Werf, Tim Leiner, Marcel J W Greuter, Dominik Fleischmann, Rozemarijn Vliegenthart, Matthijs Oudkerk, Martin J Willemink
Multiple dose reduction techniques have been introduced for coronary artery calcium (CAC) computed tomography (CT), but few have emerged into clinical practice while an increasing number of patients undergo CAC scanning. We sought to determine to what extend the radiation dose in CAC CT can be safely reduced without a significant impact on cardiovascular disease (CVD) risk stratification. A systematic database-review of articles published from 2002 until February 2018 was performed in Pubmed, WebOfScience, and Embase...
June 15, 2018: Journal of Cardiovascular Computed Tomography
Chun-Chieh Wang, Huey-Shyan Lin, Yi-Luan Huang, Fu-Zong Wu, Chiung-Chen Chuo, Yu-Jeng Ju, Carol C Wu, Ming-Ting Wu
BACKGROUND: To evaluate the frequency of renal artery dissection (RAD) and renal hypoperfusion in aortic dissection (AD) and its effect on subsequent renal atrophy in patients who did not undergo therapeutic intervention. METHODS: Initial CT data of 155 patients with acute AD (Stanford type A = 88, B = 67) were retrospectively analyzed. The false lumen statuses were patent (n = 94), partially thrombosed (n = 25), and completely thrombosed (n = 36) (also called as intramural hematoma (IMH))...
May 26, 2018: Journal of Cardiovascular Computed Tomography
Riccardo Faletti, Marco Gatti, Aurelio Cosentino, Laura Bergamasco, Erik Cura Stura, Domenica Garabello, Giovanni Pennisi, Stefano Salizzoni, Simona Veglia, Davini Ottavio, Mauro Rinaldi, Paolo Fonio
BACKGROUND: to determine reliability and reproducibility of measurements of aortic annulus in 3D models printed from cardiovascular computed tomography (CCT) images. METHODS: Retrospective study on the records of 20 patients who underwent aortic valve replacement (AVR) with pre-surgery annulus assessment by CCT and intra-operative sizing by Hegar dilators (IOS). 3D models were fabricated by fused deposition modelling of thermoplastic polyurethane filaments. For each patient, two 3D models were independently segmented, modelled and printed by two blinded "manufacturers": a radiologist and a radiology technician...
May 26, 2018: Journal of Cardiovascular Computed Tomography
Daniel W Groves, Tushar Acharya, Sujata M Shanbhag, W Patricia Bandettini, Andrew E Arai, Marcus Y Chen
No abstract text is available yet for this article.
May 24, 2018: Journal of Cardiovascular Computed Tomography
Elliot R McVeigh, Amir Pourmorteza, Michael Guttman, Veit Sandfort, Francisco Contijoch, Suhas Budhiraja, Zhennong Chen, David A Bluemke, Marcus Y Chen
BACKGROUND: CT SQUEEZ is a new automated technique to evaluate regional endocardial strain by tracking features on the endocardium from 4D cine CT data. The objective of this study was to measure the range of endocardial regional strain (RSCT ) values obtained with CT SQUEEZ in the normal human left ventricle (LV) from standard clinical 4D coronary CTA exams. METHODS: RSCT was measured over the heart cycle in 25 humans with normal LV function using cine CT from three vendors...
May 9, 2018: Journal of Cardiovascular Computed Tomography
Kristian A Øvrehus, Sara Gaur, Jonathon Leipsic, Jesper M Jensen, Damini Dey, Hans E Bøtker, Amir Ahmadi, Stephan Achenbach, Brian Ko, Bjarne L Nørgaard
BACKGROUND: Coronary stenosis and plaque evaluation by coronary computed tomography angiography (CTA) may contribute to identify hemodynamically relevant lesions. We evaluated the most stenotic lesion including plaques proximal to it versus a total vessel analyses combined with stenosis for ischemia. METHODS: Patients scheduled for clinically indicated invasive coronary angiography (ICA) for suspected coronary artery disease underwent coronary CTA and ICA including fractional flow reserve (FFR) as part of the NXT trial (clinicaltrials...
May 8, 2018: Journal of Cardiovascular Computed Tomography
Francesco Pollari, Jurij M Kališnik, Theodor Fischlein, Steffen Pfeiffer
No abstract text is available yet for this article.
May 8, 2018: Journal of Cardiovascular Computed Tomography
Balaji Tamarappoo, Yuka Otaki, Mhairi Doris, Yoav Arnson, Heidi Gransar, Sean Hayes, John Friedman, Louise Thomson, Frances Wang, Alan Rozanski, Piotr Slomka, Damini Dey, Daniel Berman
BACKGROUND: Computed tomography coronary angiography (CTA) can be used for assessment of plaque characteristics; however, quantitative assessment of changes in plaque composition in response to LDL lowering has not been performed with CTA. We sought to assess the association between LDL reduction and changes in plaque composition with quantitative CTA. METHODS: Quantification of total, calcified, non-calcified and low-density non-calcified plaque volumes (TPV, CPV, NCPV and LD-NCPV) was performed using semi-automated software in 234 vessels from 116 consecutive patients (89 men, 60 ± 10 years) with baseline LDL>70 mg/dl...
May 7, 2018: Journal of Cardiovascular Computed Tomography
Mhairi K Doris, Yuka Otaki, Yoav Arnson, Balaji Tamarappoo, Markus Goeller, Heidi Gransar, Frances Wang, Sean Hayes, John Friedman, Louise Thomson, Piotr Slomka, Damini Dey, Daniel Berman
AIMS: Non-invasive fractional flow reserve derived from coronary CT angiography (FFRCT ) has been shown to be predictive of lesion-specific ischemia as assessed by invasive fractional flow reserve (FFR). However, in practice, clinicians are often faced with an abnormal distal FFRCT in the absence of a discrete obstructive lesion. Using quantitative plaque analysis, we sought to determine the relationship between an abnormal whole vessel FFRCT (V-FFRCT ) and quantitative measures of whole vessel atherosclerosis in coronary arteries without obstructive stenosis...
May 7, 2018: Journal of Cardiovascular Computed Tomography
Mickaël Ohana, Stephanie L Sellers, John Mooney, Shaw-Hua Kueh, Rominder Grover, Chesnal D Arepalli, Kapilan Selvakumar, Ung Kim, Philipp Blanke, Jonathon A Leipsic
BACKGROUND: Scanxiety, the anxiety/stress associated with an imaging test, has never been evaluated in relation to coronary CT angiography (Coronary CTA). As it could impact heart rate and thereby affect image quality of Coronary CTA, we aimed to evaluate the prevalence, severity, and impact of scanxiety on quality and interpretability of Coronary CTA. METHODS: 366 consecutive patients were prospectively presented with a clinical questionnaire comprising two tests to evaluate their scan-related anxiety: the Impact of Event IES-6 (6 questions, final score 0-24) and a visual stress-scale (1 question, score 1-10)...
May 4, 2018: Journal of Cardiovascular Computed Tomography
Marco Spaziano, Alaide Chieffo, Yusuke Watanabe, Jaya Chandrasekhar, Samantha Sartori, Thierry Lefèvre, Anna Sonia Petronio, Patrizia Presbitero, Didier Tchetche, Alessandro Iadanza, Nicholas M Van Mieghem, Julinda Mehilli, Roxana Mehran, Marie-Claude Morice
BACKGROUND: Aortic valve calcification patterns were associated with short- and long-term outcomes in previous small observational datasets of patients undergoing transcatheter aortic valve implantation (TAVI). The specific impact of multi detector-row computed tomography (MDCT) findings on outcomes in women has not been reported. We sought to describe the associations between MDCT characteristics and clinical outcomes in a registry of 547 women undergoing TAVI. METHODS: WIN-TAVI is the first all-female registry to study the safety and effectiveness of TAVI in women (n = 1019)...
April 27, 2018: Journal of Cardiovascular Computed Tomography
Tom Banks, Orod Razeghi, Ioannis Ntalas, Waqar Aziz, Jonathan M Behar, Rebecca Preston, Brian Campbell, Simon Redwood, Bernard Prendergast, Steven Niederer, Ronak Rajani
OBJECTIVES: The primary aim of this study was to quantify the dimensions and geometry of the mitral valve complex in patients with dilated cardiomyopathy and significant mitral regurgitation. The secondary aim was to evaluate the validity of an automated segmentation algorithm for assessment of the mitral valve compared to manual assessment on computed tomography. BACKGROUND: Transcatheter mitral valve replacement (TMVR) is an evolving technique which relies heavily on the lengthy evaluation of cardiac computed tomography (CT) datasets...
April 21, 2018: Journal of Cardiovascular Computed Tomography
Rebecca T Hahn
No abstract text is available yet for this article.
May 2018: Journal of Cardiovascular Computed Tomography
Piotr J Slomka
No abstract text is available yet for this article.
May 2018: Journal of Cardiovascular Computed Tomography
Jonathan R Weir-McCall, Philipp Blanke, Stephanie L Sellers, Amir A Ahmadi, Daniele Andreini, Matthew J Budoff, Filippo Cademartiri, Kavitha Chinnaiyan, Jung Hyun Choi, Eun Ju Chun, Edoardo Conte, Ilan Gottlieb, Martin Hadamitzky, Yong Jin Kim, Byoung Kwon Lee, Sang-Eun Lee, Erica Maffei, Hugo Marques, Gianluca Pontone, Gilbert L Raff, Sanghoon Shin, Ji Min Sung, Peter Stone, Habib Samady, Renu Virmani, Jagat Narula, Daniel S Berman, Leslee J Shaw, Jeroen J Bax, Fay Y Lin, James K Min, Hyuk-Jae Chang, Jonathon A Leipsic
BACKGROUND: The aim of the study is examine the impact of non-obstructive (<50%stenosis) left main (LM) disease on the natural history of coronary artery disease using serial coronary computed tomography angiography (CTA). METHODS: CTAs from the PARADIGM (Progression of atherosclerotic plaque determined by computed tomographic angiography imaging) study, a prospective multinational registry of patients who underwent serial CTA at a ≥2 year interval were analyzed...
May 2018: Journal of Cardiovascular Computed Tomography
Harvey S Hecht, Michael J Blaha, Ella A Kazerooni, Ricardo C Cury, Matt Budoff, Jonathon Leipsic, Leslee Shaw
The goal of CAC-DRS: Coronary Artery Calcium Data and Reporting System is to create a standardized method to communicate findings of CAC scanning on all noncontrast CT scans, irrespective of the indication, in order to facilitate clinical decision-making, with recommendations for subsequent patient management. The CAC-DRS classification is applied on a per-patient basis and represents the total calcium score and the number of involved arteries. General recommendations are provided for further management of patients with different degrees of calcified plaque burden based on CAC-DRS classification...
May 2018: Journal of Cardiovascular Computed Tomography
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