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Journal of Cardiovascular Computed Tomography

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https://www.readbyqxmd.com/read/29759896/aortic-calcification-and-the-risk-for-paravalvular-regurgitation-after-tavi-the-importance-of-focusing-on-reliable-outcomes-and-appropriate-variables
#1
LETTER
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
https://www.readbyqxmd.com/read/29747946/the-power-and-limitations-of-machine-learning-and-artificial-intelligence-in-cardiac-ct
#2
EDITORIAL
Akos Varga-Szemes, Brian E Jacobs, U Joseph Schoepf
No abstract text is available yet for this article.
May 6, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29759895/cardiovascular-computed-tomographic-angiography-entering-into-the-5th-stage
#3
EDITORIAL
James K Min, Gudrun M Feuchtner, Todd C Villines
No abstract text is available yet for this article.
May 5, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29759893/the-left-main-stem-the-barometer-of-coronary-artery-disease-severity
#4
EDITORIAL
Pál Maurovich-Horvat
No abstract text is available yet for this article.
May 5, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29753764/scct-advocacy-in-2018-progress-towards-improving-patient-access-to-imaging-care
#5
EDITORIAL
Todd C Villines
No abstract text is available yet for this article.
May 5, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29752224/prevalence-and-impact-of-scan-related-anxiety-during-coronary-ct-angiography-a-prospective-cohort-study-of-366-patients
#6
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
https://www.readbyqxmd.com/read/29747947/myocardium-in-jeopardy-the-hemodynamic-implications-of-stenosis-proximity-and-severity-on-coronary-cta
#7
EDITORIAL
Todd C Villines
No abstract text is available yet for this article.
May 3, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29739728/congenital-cardiovascular-computed-tomography-taking-the-long-view
#8
EDITORIAL
Saurabh Rajpal, Subha V Raman
No abstract text is available yet for this article.
May 2, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29747949/doughnut-handmade-or-packaged-%C3%A2-which-is-better
#9
EDITORIAL
Gianluca Pontone, Mark G Rabbat, Andrea I Guaricci
No abstract text is available yet for this article.
May 1, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29754806/machine-learning-in-cardiac-ct-basic-concepts-and-contemporary-data
#10
REVIEW
Gurpreet Singh, Subhi J Al'Aref, Marly Van Assen, Timothy Suyong Kim, Alexander van Rosendael, Kranthi K Kolli, Aeshita Dwivedi, Gabriel Maliakal, Mohit Pandey, Jing Wang, Virginie Do, Manasa Gummalla, Carlo N De Cecco, James K Min
Propelled by the synergy of the groundbreaking advancements in the ability to analyze high-dimensional datasets and the increasing availability of imaging and clinical data, machine learning (ML) is poised to transform the practice of cardiovascular medicine. Owing to the growing body of literature validating both the diagnostic performance as well as the prognostic implications of anatomic and physiologic findings, coronary computed tomography angiography (CCTA) is now a well-established non-invasive modality for the assessment of cardiovascular disease...
April 30, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29753765/maximization-of-the-usage-of-coronary-cta-derived-plaque-information-using-a-machine-learning-based-algorithm-to-improve-risk-stratification-insights-from-the-confirm-registry
#11
Alexander R van Rosendael, Gabriel Maliakal, Kranthi K Kolli, Ashley Beecy, Subhi J Al'Aref, Aeshita Dwivedi, Gurpreet Singh, Mohit Panday, Amit Kumar, Xiaoyue Ma, Stephan Achenbach, Mouaz H Al-Mallah, Daniele Andreini, Jeroen J Bax, Daniel S Berman, Matthew J Budoff, Filippo Cademartiri, Tracy Q Callister, Hyuk-Jae Chang, Kavitha Chinnaiyan, Benjamin J W Chow, Ricardo C Cury, Augustin DeLago, Gudrun Feuchtner, Martin Hadamitzky, Joerg Hausleiter, Philipp A Kaufmann, Yong-Jin Kim, Jonathon A Leipsic, Erica Maffei, Hugo Marques, Gianluca Pontone, Gilbert L Raff, Ronen Rubinshtein, Leslee J Shaw, Todd C Villines, Heidi Gransar, Yao Lu, Erica C Jones, Jessica M Peña, Fay Y Lin, James K Min
INTRODUCTION: Machine learning (ML) is a field in computer science that demonstrated to effectively integrate clinical and imaging data for the creation of prognostic scores. The current study investigated whether a ML score, incorporating only the 16 segment coronary tree information derived from coronary computed tomography angiography (CCTA), provides enhanced risk stratification compared with current CCTA based risk scores. METHODS: From the multi-center CONFIRM registry, patients were included with complete CCTA risk score information and ≥3 year follow-up for myocardial infarction and death (primary endpoint)...
April 30, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29735256/frailty-matters-how-to-predict-i-ll-be-back-after-tavr
#12
EDITORIAL
Gudrun Feuchtner, Markus Kofler, Fabian Plank, Julia Dumfarth, Nikolaos Bonaros, James K Min, Guy J Friedrich
No abstract text is available yet for this article.
April 27, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29735255/computed-tomography-predictors-of-mortality-stroke-and-conduction-disturbances-in-women-undergoing-tavr-a-sub-analysis-of-the-win-tavi-registry
#13
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
https://www.readbyqxmd.com/read/29759894/about-the-twists-and-turns-relationship-of-coronary-artery-geometry-and-atherosclerosis
#14
EDITORIAL
Maros Ferencik
No abstract text is available yet for this article.
April 24, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29747948/automated-quantification-of-mitral-valve-geometry-on-multi-slice-computed-tomography-in-patients-with-dilated-cardiomyopathy-implications-for-transcatheter-mitral-valve-replacement
#15
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
https://www.readbyqxmd.com/read/29685675/predictive-value-of-coronary-computed-tomography-angiography-in-asymptomatic-individuals-with-diabetes-mellitus-systematic-review-and-meta-analysis
#16
Ebba Beller, Felix G Meinel, Franziska Schoeppe, Wolfgang G Kunz, Kolja M Thierfelder, Jörg Hausleiter, Fabian Bamberg, U Joseph Schoepf, Verena S Hoffmann
BACKGROUND: Coronary CT angiography (CTA) is generally not established as a screening tool for asymptomatic individuals. However, it is controversial whether this test may have a role for screening asymptomatic individuals with diabetes mellitus (DM) due to the high prevalence of asymptomatic coronary artery disease (CAD) in this subgroup. METHODS: We searched PubMed and EMBASE through May 2017 for studies that reported on the association between findings at coronary CTA and future cardiac events in asymptomatic individuals with DM...
April 12, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29666031/measurement-of-left-atrial-volume-by-2d-and-3d-non-contrast-computed-tomography-compared-with-cardiac-magnetic-resonance-imaging
#17
Maise Høigaard Fredgart, Rasmus Carter-Storch, Jacob Eifer Møller, Kristian Altern Øvrehus, Redi Pecini, Jordi Sanchez Dahl, Oke Gerke, Roudyna Ahmad Alturkmany, Axel Brandes, Jes Sanddal Lindholt, Axel Cosmus Pyndt Diederichsen
BACKGROUND: Cardiac magnetic resonance imaging (MRI) is considered the gold standard for assessment of left atrial (LA) volume. We assessed the feasibility of evaluating LA volume using 3D non-contrast computed tomography (NCCT). Furthermore, since manual tracing of LA volume is time consuming, we evaluated the accuracy of the LA area using 2D NCCT imaging for LA volume assessment. METHODS: MRI and NCCT imaging were performed in 69 patients before and one year after aortic valve replacement...
April 10, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29653764/radiation-dose-reduction-by-adjusting-bolus-tracking-parameters-in-a-320-detector-row-scanner
#18
Jacqueline Kioko Nishimura Matsumoto, Antonildes Nascimento Assuncao-Jr, Roberto Nery Dantas Junior, Jose de Arimateia Batista Araujo-Filho, Solange de Sousa Andrade, Cesar Higa Nomura, Jose Rodrigues Parga
BACKGROUND: The importance of bolus tracking (BT) regarding total effective radiation dose (ERD) in the era of advanced coronary computed tomography angiography (CTA) has been ignored. We aimed to investigate whether adjusting BT parameters reduces ERD. METHODS: Adults consecutively referred to CTA (n = 289) in a 320 detector-row scanner were distributed into four BT protocols according to delay time and time between intermittent scans, as follows: A (n = 70, delay 10s, intermittent scans 1s); B (n = 79, delay 10s, intermittent scans 2s); C (n = 68, delay 15s, intermittent scans 1s); and D (n = 72, delay 15s, intermittent scans 2s)...
April 5, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29730016/diagnostic-accuracy-of-semi-automatic-quantitative-metrics-as-an-alternative-to-expert-reading-of-ct-myocardial-perfusion-in-the-core320-study
#19
Mohammad R Ostovaneh, Andrea L Vavere, Vishal C Mehra, Klaus F Kofoed, Matthew B Matheson, Armin Arbab-Zadeh, Yasuko Fujisawa, Joanne D Schuijf, Carlos E Rochitte, Arthur J Scholte, Kakuya Kitagawa, Marc Dewey, Christopher Cox, Marcelo F DiCarli, Richard T George, Joao A C Lima
AIMS: To determine the diagnostic accuracy of semi-automatic quantitative metrics compared to expert reading for interpretation of computed tomography perfusion (CTP) imaging. METHODS: The CORE320 multicenter diagnostic accuracy clinical study enrolled patients between 45 and 85 years of age who were clinically referred for invasive coronary angiography (ICA). Computed tomography angiography (CTA), CTP, single photon emission computed tomography (SPECT), and ICA images were interpreted manually in blinded core laboratories by two experienced readers...
April 3, 2018: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29606394/computed-tomography-based-fat-and-muscle-characteristics-are-associated-with-mortality-after-transcatheter-aortic-valve-replacement
#20
Borek Foldyna, Fabian M Troschel, Daniel Addison, Florian J Fintelmann, Sammy Elmariah, Deborah Furman, Parastou Eslami, Brian Ghoshhajra, Michael T Lu, Venkatesh L Murthy, Udo Hoffmann, Ravi Shah
BACKGROUND: Computed tomography (CT)-based fat and muscle measures are associated with outcome in large populations. We tested if muscle and fat characteristics are associated with long-term outcomes after TAVR. METHODS: We included 403 clinical CTs performed prior to TAVR at our center between 2008 and 2016, measuring area (cm2 ) and density (Hounsfield units, HU) of both psoas muscles (PM), subcutaneous adipose (SAT), and visceral adipose tissue (VAT). Area measures were indexed to height, log-transformed and both area and density were standardized for analysis...
March 22, 2018: Journal of Cardiovascular Computed Tomography
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