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Journal of Cardiovascular Computed Tomography

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https://www.readbyqxmd.com/read/28082007/prognostic-performance-of-coronary-computed-tomography-angiography-in-asymptomatic-individuals-as-compared-to-symptomatic-patients-with-an-appropriate-indication
#1
Gabriel Cordeiro Camargo, Thais Peclat, Ana Carolina Souza, Ronaldo de Souza Leão Lima, Ilan Gottlieb
INTRODUCTION: Current Appropriatene Usa Criteria exclude coronary computed tomography angiography (CTA) in asymptomatic individuals. We compared the prognostic value of coronary CTA in asymptomatic individuals to symptomatic patients with "definitely appropriate" indications for coronary CTA. METHODS: Consecutive patients without previously known CAD referred for a CTA exam were divided into 2 groups. One group consisted ofasymptomatic individuals, the other of symptomatic patients with a "definitely appropriate" indication for coronary CT (unable to exercise and/or with an uninterpretable electrocardiogram and at an intermediate pre-test probability of obstructive coronary artery disease)...
January 3, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28063844/automatic-3d-aortic-annulus-sizing-by-computed-tomography-in-the-planning-of-transcatheter-aortic-valve-implantation
#2
Sandro Queirós, Christophe Dubois, Pedro Morais, Tom Adriaenssens, Jaime C Fonseca, João L Vilaça, Jan D'hooge
BACKGROUND: Accurate imaging assessment of aortic annulus (AoA) dimension is paramount to decide on the correct transcatheter heart valve (THV) size for patients undergoing transcatheter aortic valve implantation (TAVI). We evaluated the feasibility and accuracy of a novel automatic framework for multidetector row computed tomography (MDCT)-based TAVI planning. METHODS: Among 122 consecutive patients undergoing TAVI and retrospectively reviewed for this study, 104 patients with preoperative MDCT of sufficient quality were enrolled and analyzed with the proposed software...
December 30, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28017291/rationale-design-and-goals-of-the-heartflow-assessing-diagnostic-value-of-non-invasive-ffrct-in-coronary-care-advance-registry
#3
Kavitha M Chinnaiyan, Takashi Akasaka, Tetsuya Amano, Jeroen J Bax, Philipp Blanke, Bernard De Bruyne, Tomohiro Kawasaki, Jonathon Leipsic, Hitoshi Matsuo, Yoshihiro Morino, Koen Nieman, Bjarne L Norgaard, Manesh R Patel, Gianluca Pontone, Mark Rabbat, Campbell Rogers, Neils Peter Sand, Gilbert Raff
BACKGROUND: Coronary CT angiography (CTA) is a reliable tool for the detection of coronary artery disease (CAD) that conveys significant prognostic information. It does not provide data on the hemodynamic significance of a given lesion, particularly in intermediate-grade stenosis. Fractional flow reserve by CT (FFRCT) can accurately predict the hemodynamic significance of coronary lesions. The primary objective of this registry is to determine whether the integration of FFRCT as an adjunct to coronary CTA will lead to a significant change in the management of CAD in patients with stable angina...
December 14, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28017553/coronary-computed-tomographic-angiography-the-evidence-dominates
#4
EDITORIAL
Leslee J Shaw, Todd Villines, Ron Blankstein, Suhny Abbara, Guy Weigold, Ahmad Slim, Jonathon Leipsic
No abstract text is available yet for this article.
December 12, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27884729/rationale-and-design-of-the-coronary-artery-calcium-consortium-a-multicenter-cohort-study
#5
Michael J Blaha, Seamus P Whelton, Mahmoud Al Rifai, Zeina A Dardari, Leslee J Shaw, Mouaz H Al-Mallah, Kuni Matsushita, John A Rumberger, Daniel S Berman, Matthew J Budoff, Michael D Miedema, Khurram Nasir
BACKGROUND: Although coronary artery calcium (CAC) has been investigated for over two decades, there is very limited data on the association of CAC with cause of death. The CAC Consortium is a large ongoing multi-center observational cohort of individuals who underwent non-contrast cardiac-gated CAC testing and systematic, prospective, long-term follow-up for mortality with ascertainment of cause of death. METHODS: Four participating institutions from three states within the US (California, Minnesota, and Ohio) have contributed individual-level patient data to the CAC Consortium (spanning years 1991-2010)...
November 11, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27916431/2016-scct-str-guidelines-for-coronary-artery-calcium-scoring-of-noncontrast-noncardiac-chest-ct-scans-a-report-of-the-society-of-cardiovascular-computed-tomography-and-society-of-thoracic-radiology
#6
Harvey S Hecht, Paul Cronin, Michael J Blaha, Matthew J Budoff, Ella A Kazerooni, Jagat Narula, David Yankelevitz, Suhny Abbara
The Society of Cardiovascular Computed Tomography (SCCT) and the Society of Thoracic Radiology (STR) have jointly produced this document. Experts in this subject have been selected from both organizations to examine subject-specific data and write this guideline in partnership. A formal literature review, weighing the strength of evidence has been performed. When available, information from studies on cost was considered. Computed tomography (CT) acquisition, CAC scoring methodologies and clinical outcomes are the primary basis for the recommendations in this guideline...
November 10, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27863922/dual-energy-ct-to-reveal-pseudo-leakage-of-frozen-elephant-trunk
#7
Robbert Willem van Hamersvelt, Pim A de Jong, Thomas C Dessing, Tim Leiner, Martin J Willemink
In this case report dual energy CT information was used to reveal a pseudo leakage of a frozen elephant trunk stent. Different materials, which could not be distinguished based on attenuation number, were distinguished with the use of material decomposition algorithms using DECT acquisitions. By using material decomposition imaging, the DECT system proved that in this case the extraluminal densities were not caused by leakage but by a Teflon Felt supported suture.
November 10, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27894902/the-feasibility-of-forward-projected-model-based-iterative-reconstruction-solution-first-for-coronary-320-row-computed-tomography-angiography-a-pilot-study
#8
Eriko Maeda, Nobuo Tomizawa, Shigeaki Kanno, Koichiro Yasaka, Takatoshi Kubo, Kenji Ino, Rumiko Torigoe, Kuni Ohtomo
BACKGROUND: We aimed to assess and compare the influence of Forward projected model-based Iterative Reconstruction SoluTion (FIRST), a recently introduced full iterative reconstruction method, on radiation doses and image quality with that of Adaptive Iterative Dose Reduction (AIDR) 3D for 320-row cardiac computed tomography (CT). METHODS: A total of 184 patients subjected to single-beat reconstruction cardiac CT were retrospectively included. The first 89 patients received standard radiation doses; their data were reconstructed using AIDR 3D, whereas the last 95 patients received in average 20% reduction in tube current; their data were reconstructed using FIRST...
November 9, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27838250/asymptomatic-large-aortic-root-thrombus-after-left-ventricular-assist-device-implantation-detected-by-cardiac-computed-tomography
#9
Sushilkumar Satish Gupta, Eduardo Pozo, Maria Eduarda Menezes de Siqueira, Javier Sanz
No abstract text is available yet for this article.
November 3, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27816401/prognostic-implications-of-descending-thoracic-aorta-dilation-after-surgery-for-aortic-dissection
#10
Madelien V Regeer, Bryan Martina, Michel I M Versteegh, Arend de Weger, Robert J M Klautz, Martin J Schalij, Jeroen J Bax, Nina Ajmone Marsan, Victoria Delgado
BACKGROUND: The present study assessed whether descending thoracic aorta growth can be measured reliably by volumetric analysis using multi-detector row computed tomography (MDCT) and whether growth influences the need for future aortic interventions in survivors of acute type A aortic dissection. METHODS: A total of 51 patients (58 ± 11 years, 61% male) who underwent surgery for type A aortic dissection with ≥2 postoperative MDCT scans ≥5 months apart were included...
October 25, 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27855942/erratum-to-abstracts-of-the-11th-annual-scientific-meeting-of-the-society-of-cardiovascular-computed-tomography-j-cardiovasc-comput-tomogr-10-3-2016-s1-s96
#11
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27780758/scct-guidelines-for-the-performance-and-acquisition-of-coronary-computed-tomographic-angiography-a-report-of-the-society-of-cardiovascular-computed-tomography-guidelines-committee-endorsed-by-the-north-american-society-for-cardiovascular-imaging-nasci
#12
Suhny Abbara, Philipp Blanke, Christopher D Maroules, Michael Cheezum, Andrew D Choi, B Kelly Han, Mohamed Marwan, Chris Naoum, Bjarne L Norgaard, Ronen Rubinshtein, Paul Schoenhagen, Todd Villines, Jonathon Leipsic
In response to recent technological advancements in acquisition techniques as well as a growing body of evidence regarding the optimal performance of coronary computed tomography angiography (coronary CTA), the Society of Cardiovascular Computed Tomography Guidelines Committee has produced this update to its previously established 2009 "Guidelines for the Performance of Coronary CTA" (1). The purpose of this document is to provide standards meant to ensure reliable practice methods and quality outcomes based on the best available data in order to improve the diagnostic care of patients...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27773634/diagnostic-accuracy-of-static-ct-perfusion-for-the-detection-of-myocardial-ischemia-a-systematic-review-and-meta-analysis
#13
Mathias Holm Sørgaard, Klaus Fuglsang Kofoed, Jesper James Linde, Richard Thomas George, Carlos Eduardo Rochitte, Gudrun Feuchtner, Joao A C Lima, Jawdat Abdulla
OBJECTIVES: The aim of this study is to provide a meta-analysis of all published studies assessing the diagnostic accuracy of stress CT myocardial perfusion imaging (CTP) in patients suspected of or with known coronary artery disease. This analysis is limited to static stress CTP. METHODS: Systematic literature review and meta-analysis of studies examining the diagnostic accuracy of static CTP imaging alone or combined with coronary CT angiography (CTA) in comparison to single photon emission computed tomography (SPECT), magnetic resonance perfusion (MRP), and/or invasive coronary angiography with and without fractional flow reserve (FFR)...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27773633/patient-centered-imaging-and-the-imaging-team
#14
EDITORIAL
Leslee J Shaw, Ahmad Slim
No abstract text is available yet for this article.
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27769663/influence-of-adaptive-statistical-iterative-reconstruction-on-coronary-plaque-analysis-in-coronary-computed-tomography-angiography
#15
Helle Precht, Pieter H Kitslaar, Alexander Broersen, Jouke Dijkstra, Oke Gerke, Jesper Thygesen, Kenneth Egstrup, Jess Lambrechtsen
PURPOSE: The purpose of this study was to study the effect of iterative reconstruction (IR) software on quantitative plaque measurements in coronary computed tomography angiography (CCTA). METHODS: Thirty patients with a three clinical risk factors for coronary artery disease (CAD) had one CCTA performed. Images were reconstructed using FBP, 30% and 60% adaptive statistical IR (ASIR). Coronary plaque analysis was performed as per patient and per vessel (LM, LAD, CX and RCA) measurements...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27717753/clinical-and-prognostic-correlates-of-pulmonary-congestion-in-coronary-computed-tomography-angiography-data-sets
#16
J Tobias Kühl, Thomas S Kristensen, Anna F Thomsen, Louise Hindsø, Kristoffer L Hansen, Olav W Nielsen, Henning Kelbæk, Klaus F Kofoed
BACKGROUND: Signs of pulmonary congestion obtained from cardiac computed tomography angiographic (coronary CTA) images have not previously been related to clinical congestion or outcome and the clinical value is, therefore, unknown. Our objective was to test the hypothesis that signs of pulmonary congestion predict clinical heart failure and adverse outcome in patients with myocardial infarction. METHODS: Coronary CTA was performed before invasive treatment in 400 prospectively included patients with non ST segment elevation myocardial infarction in an observational study...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27697505/computed-tomography-assessment-for-transcatheter-aortic-valve-in-valve-implantation-the-vancouver-approach-to-predict-anatomical-risk-for-coronary-obstruction-and-other-considerations
#17
REVIEW
Philipp Blanke, Jeanette Soon, Danny Dvir, Jong K Park, Christopher Naoum, Shaw-Hua Kueh, David A Wood, Bjarne L Norgaard, Kapilan Selvakumar, Jian Ye, Anson Cheung, John G Webb, Jonathon Leipsic
Valve-in-valve implantation of a transcatheter heart valve into a failed bioprosthetic heart valve has emerged as a treatment alternative to repeat conventional surgery. This requires careful pre-procedural assessment using non-invasive imaging to identify patients at risk for procedure related adverse events, such as ostial coronary occlusion. Herein we report how to comprehensively assess aortic root anatomy using computed tomography prior to transcatheter valve implantation for failed bioprosthetic aortic valves...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27597530/influence-of-aortic-valve-leaflet-calcification-on-dynamic-aortic-valve-motion-assessed-by-cardiac-computed-tomography
#18
Keisuke Minami, Kihei Yoneyama, Masaki Izumo, Kengo Suzuki, Yasuyoshi Ogawa, Kousuke Chikaraishi, Yukihisa Ogawa, Yasuyuki Kobayashi, Toshiyuki Furukawa, Yasuhiro Tanabe, Yoshihiro J Akashi
BACKGROUND: Computed tomography is the best noninvasive imaging modality for evaluating valve leaflet calcification. OBJECTIVE: To evaluate the association of aortic valve leaflet calcification with instantaneous valve opening and closing using dynamic multidetector computed tomography (MDCT). METHODS: We retrospectively evaluated 58 consecutive patients who underwent dynamic MDCT imaging. Aortic valve calcification (AVC) was quantified using the Agatston method...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27591768/ct-pulmonary-angiography-based-scoring-system-to-predict-the-prognosis-of-acute-pulmonary-embolism
#19
Kanako K Kumamaru, Sachin S Saboo, Ayaz Aghayev, Phoebe Cai, Carlos Gonzalez Quesada, Elizabeth George, Zoha Hussain, Tianrun Cai, Frank J Rybicki
BACKGROUND: The purpose is to develop a comprehensive risk-scoring system based on CT findings for predicting 30-day mortality after acute pulmonary embolism (PE), and to compare it with PE Severity Index (PESI). MATERIALS AND METHODS: The study included consecutive 1698 CT pulmonary angiograms (CTPA) positive for acute PE performed at a single institution (2003-2010). Two radiologists independently assessed each study regarding clinically relevant findings and then performed adjudication...
November 2016: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/27522574/prognostic-implications-of-coronary-ct-angiography-derived-quantitative-markers-for-the-prediction-of-major-adverse-cardiac-events
#20
Christian Tesche, Fabian Plank, Carlo N De Cecco, Taylor M Duguay, Moritz H Albrecht, Akos Varga-Szemes, Richard R Bayer, Junjie Yang, Isaac L Jacks, Bettina M Gramer, Ullrich Ebersberger, Ellen Hoffmann, Salvatore A Chiaramida, Gudrun Feuchtner, U Joseph Schoepf
OBJECTIVE: To evaluate quantitative markers derived from coronary CT angiography (coronary CTA) for the prediction of major adverse cardiac events (MACE). MATERIALS AND METHODS: Pooled data from two centers in the US and Europe were retrospectively analyzed. Forty-six patients (65.5 ± 8.1 years, 62% male) with suspected coronary artery disease (CAD) who had undergone dual-source CCTA and had experienced MACE within 12 months were included and compared to a Framingham risk score matched cohort (n = 46) without MACE...
November 2016: Journal of Cardiovascular Computed Tomography
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