journal
MENU ▼
Read by QxMD icon Read
search

Journal of Cardiovascular Computed Tomography

journal
https://www.readbyqxmd.com/read/28705554/atrial-function-atrial-volume-and-cardiovascular-clinical-outcomes-in-patients-with-end-stage-renal-disease-a-study-of-cardiac-computed-tomography
#1
Laust Dupont, Simon Winther, Hanne Skou Jørgensen, Peter Bomholt, Hans Erik Bøtker, Morten Bøttcher, Per Ivarsen, My Svensson
BACKGROUND: Patients with chronic kidney disease (CKD) have an increased risk of cardiovascular events. Previous studies using 2-dimensional echocardiography show that left atrial end-diastolic volume (LAEDV) predicts cardiovascular outcomes and mortality in patients with CKD. However, contrast-enhanced cardiac CT may offers a more precise measure of atrial dimensions and function than 2-dimensional echocardiography and may provide improved predictionof patient outcome. AIM: The aim of the present study was to examine the association of LAEDV and left atrial ejection fraction (LAEF) assessed by CT with left ventricle end-diastolic volume (LVEDV), left ventricular mass, left ventricular ejection fraction and N-terminal plasma-pro-brain natriuretic peptide (NT-PRO-BNP)...
July 4, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28732689/defining-coronary-artery-calcium-concordance-and-repeatability-implications-for-development-and-change-the-dallas-heart-study
#2
Andre R M Paixao, Ian J Neeland, Colby R Ayers, Frank Xing, Jarett D Berry, James A de Lemos, Suhny Abbara, Ronald M Peshock, Amit Khera
BACKGROUND: Development and change of coronary artery calcium (CAC) are associated with coronary heart disease. Interpretation of serial CAC measurements will require better understanding of changes in CAC beyond the variability in the test itself. METHODS: Dallas Heart Study participants (2888) with duplicate CAC scans obtained minutes apart were analyzed to determine interscan concordance and 95% confidence bounds (ie: repeatability limits) for each discrete CAC value...
July 3, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28666784/interpreting-results-of-coronary-computed-tomography-angiography-derived-fractional-flow-reserve-in-clinical-practice
#3
REVIEW
Mark G Rabbat, Daniel S Berman, Morton Kern, Gilbert Raff, Kavitha Chinnaiyan, Lynne Koweek, Leslee J Shaw, Philipp Blanke, Markus Scherer, Jesper M Jensen, John Lesser, Bjarne L Nørgaard, Gianluca Pontone, Bernard De Bruyne, Jeroen J Bax, Jonathon Leipsic
The application of computational fluid dynamics to coronary computed tomography angiography allows Fractional Flow Reserve (FFR) to be calculated non-invasively (FFRCT), enabling computation of FFR from coronary computed tomography angiography acquired at rest both for individual lesions as well as along the entire course of a coronary artery. FFRCT, validated in a number of accuracy studies and a large clinical utility trial, is beginning to penetrate clinical practice. Importantly, while accuracy trials compared FFRCT to invasively measured FFR at a single point in the coronary tree, clinical reports of FFRCT provide information regarding a patient's entire coronary vasculature...
June 23, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28662835/ct-angiography-to-evaluate-coronary-artery-disease-and-revascularization-requirement-before-trans-catheter-aortic-valve-replacement
#4
Alexia Rossi, Carlo N De Cecco, Simon R O Kennon, Lu Zou, Felix G Meinel, William Toscano, Sabrina Segreto, Stephan Achenbach, Jörg Hausleiter, U Joseph Schoepf, Francesca Pugliese
BACKGROUND: Coronary artery disease (CAD) and aortic stenosis share pathophysiological mechanisms and risk factors. We evaluated the clinical utility of coronary computed tomography angiography (CTA) to identify CAD and revascularization requirement in patients with severe aortic stenosis considered for transcatheter aortic valve replacement (TAVR). METHODS: Consecutive patients without known CAD underwent calcium scoring, CTA and invasive coronary angiography (ICA)...
June 22, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28528693/a-rare-case-of-aortic-arch-dysplasia-in-a-50-year-old-woman
#5
Jianlong Yan, Wenming Shao, Aidong Zhang
No abstract text is available yet for this article.
May 10, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28579389/scct-president-s-page-2017-a-very-productive-year-setting-the-stage-for-future-success
#6
EDITORIAL
Leslee J Shaw, Todd C Villines
No abstract text is available yet for this article.
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28549614/validation-and-comparison-of-four-models-to-calculate-pretest-probability-of-obstructive-coronary-artery-disease-in-a-chinese-population-a-coronary-computed-tomographic-angiography-study
#7
Jia Zhou, Yujie Liu, Lingyu Huang, Yahang Tan, Xingchen Li, Hong Zhang, Yanhe Ma, Ying Zhang
OBJECTIVE: We sought to compare the performance of the updated Diamond-Forrester method (UDFM), Duke clinical score (DCS), Genders clinical model (GCM) and Genders extended model (GEM) in a Chinese population referred to coronary computed tomography angiography (coronary CTA). BACKGROUND: The reliability of existing models to calculate the pretest proability (PTP) of obstructive coronary artery disease (CAD) have not been fully investigated, especially in a Chinese population...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28532693/a-prospective-national-survey-of-coronary-ct-angiography-radiation-doses-in-the-united-kingdom
#8
Isabel A Castellano, Edward D Nicol, Russell K Bull, Carl A Roobottom, Michelle C Williams, Stephen P Harden
BACKGROUND: Little real-world radiation dose data exist for the majority of cardiovascular CT. Some data have been published for coronary CT angiography (coronary CTA) specifically, but they invariably arise from high-volume centres with access to the most recent technology. OBJECTIVE: The aim of this study was to document real-world radiation doses for coronary CTA in the United Kingdom, and to establish their relationship to clinical protocol selection, acquisition heart rate, and scanner technology...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28506470/coronary-ct-angiography-in-the-emergency-department-utilizing-second-and-third-generation-dual-source-ct
#9
Nandini M Meyersohn, Balint Szilveszter, Pedro V Staziaki, Jan-Erik Scholtz, Richard A P Takx, Udo Hoffmann, Brian B Ghoshhajra
BACKGROUND: Coronary computed tomography angiography (coronary CTA) allows efficient triage of low to intermediate risk patients with suspected acute coronary syndrome (ACS) in the emergency department (ED). Techniques for coronary CTA acquisition in the ED continue to evolve with the establishment of standardized scan protocols and the introduction of newer generations of CT hardware. OBJECTIVES: To evaluate qualitative and quantitative image quality and radiation dose exposure of coronary CTA acquired on 2nd versus 3rd generation dual source CT (DSCT) scanners using a standardized institutional scan protocol designed for the ED...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28487137/clinical-risk-factors-alone-are-inadequate-for-predicting-significant-coronary-artery-disease
#10
Frederick K Korley, Constantine Gatsonis, Bradley S Snyder, Richard T George, Thura Abd, Stefan L Zimmerman, Harold I Litt, Judd E Hollander
OBJECTIVE: We sought to derive and validate a model for identifying suspected ACS patients harboring undiagnosed significant coronary artery disease (CAD). METHODS: This was a secondary analysis of data from a randomized control trial (RCT). Patients randomized to the CTA arm of an RCT examining a CTA-based strategy for ruling-out acute coronary syndrome (ACS) constitute the derivation cohort, which was randomly divided into a training dataset (2/3, used for model derivation) and a test dataset (1/3, used for internal validation (IV))...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28483581/prognostic-value-of-segment-involvement-score-compared-to-other-measures-of-coronary-atherosclerosis-by-computed-tomography-a-systematic-review-and-meta-analysis
#11
Chadi Ayoub, Fernanda Erthal, Mahmoud A Abdelsalam, M Hassan Murad, Zhen Wang, Patricia J Erwin, Graham S Hillis, Leonard Kritharides, Benjamin J W Chow
BACKGROUND: The segment involvement score (SIS) is a semiquantitative measure of the extent of atherosclerosis burden by coronary computed tomography angiography (CTA). We sought to evaluate by meta-analysis the prognostic value of SIS, and to compare it with other CTA measures of coronary artery disease (CAD). METHODS: Electronic databases from 1946 to January 2016 were searched. Studies reporting SIS, or an equivalent measure by coronary CTA, and clinical outcomes were included...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28476505/coronary-computed-tomography-angiography-derived-risk-score-in-predicting-cardiac-events
#12
Valtteri Uusitalo, Vasileios Kamperidis, Michiel A de Graaf, Teemu Maaniitty, Iida Stenström, Alexander Broersen, Jouke Dijkstra, Arthur J Scholte, Antti Saraste, Jeroen J Bax, Juhani Knuuti
BACKGROUND: We evaluated the prognostic value of an integrated atherosclerosis risk score combining the markers of coronary plaque burden, location and composition as assessed by computed tomography angiography (CTA). METHODS: 922 consecutive patients underwent CTA for suspected coronary artery disease (CAD). Patients without atherosclerosis (n = 261) and in whom quantitative CTA analysis was not feasible due to image quality, step-artefacts or technical factors related to image acquisition or data storage (n = 153) were excluded...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28457950/practical-determination-of-aortic-valve-calcium-volume-score-on-contrast-enhanced-computed-tomography-prior-to-transcatheter-aortic-valve-replacement-and-impact-on-paravalvular-regurgitation-elucidating-optimal-threshold-cutoffs
#13
Nicolas Bettinger, Omar K Khalique, Joseph M Krepp, Nadira B Hamid, David J Bae, Todd C Pulerwitz, Ming Liao, Rebecca T Hahn, Torsten P Vahl, Tamim M Nazif, Isaac George, Martin B Leon, Andrew J Einstein, Susheel K Kodali
BACKGROUND: The threshold for the optimal computed tomography (CT) number in Hounsfield Units (HU) to quantify aortic valvular calcium on contrast-enhanced scans has not been standardized. Our aim was to find the most accurate threshold to predict paravalvular regurgitation (PVR) after transcatheter aortic valve replacement (TAVR). METHODS: 104 patients who underwent TAVR with the CoreValve prosthesis were studied retrospectively. Luminal attenuation (LA) in HU was measured at the level of the aortic annulus...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28442244/automatic-high-resolution-infarct-detection-using-volumetric-multiphase-dual-energy-ct
#14
Veit Sandfort, Alan C Kwan, Comfort Elumogo, Davis M Vigneault, Rolf Symons, Amir Pourmorteza, Kelly Rice, Cynthia Davies-Venn, Mark A Ahlman, Chia-Ying Liu, Stefan L Zimmerman, David A Bluemke
OBJECTIVES: Late contrast enhancement CT (LCE-CT) visualizes the presence of myocardial infarcts. Differentiation of the contrast-enhanced infarct from blood pool is challenging. We developed a novel method using data from first pass CT angiography (CTA) imaging to enable automatic infarct detection. MATERIALS AND METHODS: A canine model of myocardial infarction was produced in 11 animals. Two months later, first pass CTA (90 kVp) and LCE-CT (dual energy 90 kVp/150 kVp tin filtered) were performed...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28420590/volume-and-dimensions-of-angiographically-normal-coronary-arteries-assessed-by-multidetector-computed-tomography
#15
Samuel Kiil Sørensen, Jørgen Tobias Kühl, Andreas Fuchs, Jakob Boesgaard Norsk, Lars Valeur Køber, Børge Grønne Nordestgaard, Klaus Fuglsang Kofoed
BACKGROUND: The objective of this study was to determine normal values for coronary artery volume (CAV) and individual vasculature and segment dimensions. METHODS: We examined 200 healthy volunteers with an Agatston score of 0 and a normal, high quality coronary CTA. Using 320 slice multidetector row CT and designated vessel tracing software with border detection algorithm, the main coronary arteries and branches were delineated and total and segmental dimensions calculated...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28396198/left-ventricular-access-point-determination-for-a-coaxial-approach-to-the-mitral-annular-landing-zone-in-transcatheter-mitral-valve-replacement
#16
Philipp Blanke, Jong K Park, Paul Grayburn, Christopher Naoum, Kevin Ong, Keshav Kohli, Bjarne L Norgaard, John G Webb, Jeffrey Popma, David Boshell, Paul Sorajja, David Muller, Jonathon Leipsic
INTRODUCTION: To facilitate coaxial device deployment in transcatheter mitral valve replacement (TMVR), a coaxial approach to the mitral annular plane is needed. We sought to establish a method to determine an 'orthogonal' left ventricular (LV) access point for transapical TMVR and to quantitatively characterize its location in patients with severe mitral regurgitation using cardiac computed tomography. METHODS: Cardiac CT data sets of 54 patients with moderate-severe mitral regurgitation evaluated for potential TMVR were analyzed...
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28342678/spontaneous-coronary-artery-intramural-hematoma-in-a-patient-with-vascular-ehlers-danlos-syndrome-serial-findings-in-coronary-computed-tomographic-angiography
#17
Takayoshi Toba, Shumpei Mori, Atsushi Yatani, Yoichiro Sugisaki, Tomomi Akita, Naoto Sasaki, Hiromasa Otake, Toshiro Shinke, Hiroyuki Mori, Tatsuya Nishii, Atsushi K Kono, Ken-Ichi Hirata
No abstract text is available yet for this article.
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28196684/giant-cell-aortitis-mimicking-intramural-hematoma
#18
Richard Thomas, Carolyn Glass, Richard N Mitchell, Michael L Steigner, Ayaz Aghayev
No abstract text is available yet for this article.
July 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28420591/scct-and-cta-the-future-is-now
#19
EDITORIAL
Leslee J Shaw
No abstract text is available yet for this article.
May 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28411031/prognostic-value-of-visually-detected-coronary-artery-calcification-on-unenhanced-non-gated-thoracic-computed-tomography-for-prediction-of-non-fatal-myocardial-infarction-and-all-cause-mortality
#20
Lisa Shao, Andrew T Yan, Gerald Lebovic, Harvey H Wong, Anish Kirpalani, Djeven P Deva
PURPOSE: To determine the prognostic value of visually detected coronary artery calcification (CAC) on unenhanced non-gated thoracic computed tomography (CT) for non-fatal myocardial infarction (MI) and all-cause mortality. METHODS: This retrospective single-centre cohort study comprised of 410 consecutive patients aged 40-80 years without any known cardiovascular disease at baseline. CT images without electrocardiogram-gating were acquired for a variety of respiratory medicine indications...
May 2017: Journal of Cardiovascular Computed Tomography
journal
journal
41658
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"