Abstract:
:The acquisition of diagnostic cardiovascular computed tomography (CT) images requires careful preparation of the patient before scanning. Guidelines for patient preparation are largely dictated by scanner capabilities and the technical limits they impose on patient-specific characteristics. The objective of this paper is to highlight procedures for patient screening, premedication, instruction, positioning, and electrocardiographic (ECG) lead placement. Awareness of scanner limitations and adherence to patient preparation guidelines can significantly improve CT image quality and diagnostic yield.
journal_name
J Cardiovasc Comput Tomogrjournal_title
Journal of cardiovascular computed tomographyauthors
Halliburton SS,Abbara Sdoi
10.1016/j.jcct.2007.04.004subject
Has Abstractpub_date
2007-07-01 00:00:00pages
62-5issue
1eissn
1934-5925issn
1876-861Xpii
S1934-5925(07)00005-6journal_volume
1pub_type
杂志文章abstract::A 41-year-old male with prior history of aortic root replacement for infectious endocarditis was found to have a pseudoaneurysm in the fibrous continuity between the aortic and mitral valves: the so called "mitral-aortic intervalvular fibrosa." Preoperative cardiac-gated computed tomographic angiography and intraopera...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2011.03.006
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Computed tomography (CT) annular measurements are predictive of paravalvular regurgitation after transcatheter aortic valve replacement (TAVR) which is a predictor of mortality and morbidity. OBJECTIVES:To demonstrate the rationale and potential implications of new CT sizing recommendations for TAVR. METHO...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2012.10.002
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:Neonates with complex congenital heart disease (CHD) are at risk of adverse events from anesthesia. CT angiography (CTA) performed free breathing and without sedation has not been reported for evaluation of complex CHD in neonates. OBJECTIVES:The aim was to evaluate the image quality and risk of free breath...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2013.11.006
更新日期:2013-11-01 00:00:00
abstract::We present an illustrative case of a very rare complication of saphenous bypass: a huge aneurysm that severely compresses the right-heart cavities. ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2017.02.005
更新日期:2017-01-01 00:00:00
abstract::Magnetic particle imaging (MPI) is a new medical imaging technique which performs a direct measurement of magnetic nanoparticles, also known as superparamagnetic iron oxide. MPI can acquire quantitative images of the local distribution of the magnetic material with high spatial and temporal resolution. Its sensitivity...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2012.04.007
更新日期:2012-05-01 00:00:00
abstract::Images of a case showing Gerbode defect are presented with transesophageal echo correlation. ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2009.03.003
更新日期:2009-07-01 00:00:00
abstract::The use of cardiac computed tomography (CT) to noninvasively visualize the coronary arteries has rapidly increased during the last few years but thereby also has raised concerns about the amount of radiation exposure and its potentially associated hazards. In this article, we summarize several strategies and new scann...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2008.08.012
更新日期:2008-09-01 00:00:00
abstract::Here, we report about a 34-year-old man with tuberous sclerosis. During routine surveillance, a CT scan of the chest incidentally showed a low-attenuation streak within the left ventricle. Cardiac magnetic resonance imaging confirmed intramyocardial lipid deposition within the left ventricle. Tuberous sclerosis is an ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2013.06.249
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:Technical advances to minimize radiation exposure because of imaging are in accord with the "as low as reasonably achievable" principle. OBJECTIVE:We aimed to determine whether coronary calcium scoring (CCS) by multidetector CT at a tube voltage of 100 kVp yields comparable results to the standard 120-kVp p...
journal_title:Journal of cardiovascular computed tomography
pub_type: 评论,杂志文章
doi:10.1016/j.jcct.2009.10.002
更新日期:2009-11-01 00:00:00
abstract::Cardiac CT offers several approaches to establish the hemodynamic severity of coronary artery obstructions. Dynamic myocardial perfusion CT (MPICT) is based on serial CT imaging to measure the inflow of contrast medium into the myocardium and calculate absolute measures of myocardial perfusion. This review describes t...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章,评审
doi:10.1016/j.jcct.2019.09.003
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Risk assessment in the extensive calcified plaque phenotype has been limited by small sample size. OBJECTIVE:We studied all-cause mortality rates among asymptomatic patients with markedly elevated Agatston scores > 1000. METHODS:We studied a clinical cohort of 44,052 asymptomatic patients referred for coro...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcct.2013.12.002
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to test the diagnostic accuracy of myocardial CT perfusion (CTP) imaging using color and gray-scale image analysis. BACKGROUND:Current myocardial CTP techniques have varying diagnostic accuracy and are prone to artifacts that impair detection. This study evaluated the diagnost...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2011.10.006
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:Among CT scanners, 320-row instruments feature decreased photon energy and yield strong contrast enhancement. Consequently, the contrast medium (CM) dose can be reduced. The results of low-tube-voltage coronary CT angiography (CCTA) performed on 320-row scanners have not been adequately assessed. OBJECTIVE:...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jcct.2014.12.002
更新日期:2015-01-01 00:00:00
abstract::Clinical trials assessing the effect of medical therapies on atherosclerotic plaques have hitherto employed invasive imaging techniques such as intravascular ultrasound (IVUS). This has limited the study population to high-risk patients in whom invasive coronary angiography is indicated; moreover, IVUS typically is pe...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章,评审
doi:10.1016/j.jcct.2019.06.017
更新日期:2019-01-01 00:00:00
abstract: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 ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2018.06.005
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:When coronary calcium scoring is performed in patients with suspected coronary artery disease, a separate noncontrast scan is acquired before contrast-enhanced coronary CT angiography (CTA). OBJECTIVE:Our aim was to develop and validate an automated method for calculating the coronary calcium score (CCS) fr...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jcct.2015.06.001
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:While an assessment of the right ventricular (RV) size remains challenging, the entire RV is can be imaged on coronary computed tomography angiography (CCTA) studies. With prospective ECG-triggering, the RV end diastolic volume (RVEDV) cannot be measured; however, the RV mid-diastolic volume (RVMDV) can stil...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2019.11.003
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Data are limited on using 64-slice multidetector computed tomography (MDCT) as a gatekeeper to cardiac catheterization in patients with mild abnormalities on myocardial perfusion stress imaging (MPI). OBJECTIVE:We compared the rate of invasive coronary angiography (ICA) within 6 months after finding mildly ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2008.09.002
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:Angina is a frequent symptom in patients with hypertrophic cardiomyopathy (HCM); however, it is often not because of significant epicardial coronary artery stenosis. Coronary CT angiography (CCTA) is an excellent modality to rule out significant coronary artery stenosis in the low- and intermediate-risk pati...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2014.09.007
更新日期:2014-11-01 00:00:00
abstract:INTRODUCTION:We aimed to characterize artifacts observed in a routine clinical coronary CT angiography (CCTA) performed by a dual-source CT (DSCT) scanner (Definition; Siemens Medical Solutions). METHODS:Studies of 167 consecutive patients referred for CCTA, performed after beta-blockade (if not contraindicated), were...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2007.12.017
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:Obesity is a risk factor for coronary artery disease (CAD), but adiposity may mimic symptoms of CAD and reduce the accuracy of diagnostic testing. METHODS:Patients from the PROMISE trial (n = 8889) were classified according to body mass index (BMI). We assessed relationships between BMI, physician's prefere...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2019.03.010
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:To review the imaging features of coronary artery-to-pulmonary artery fistula (CPAF) on CT coronary angiography (CTCA) and evaluate its diagnostic performance compared with coronary catheter angiography (CCA) and transthoracic echocardiography (TTE). MATERIALS AND METHODS:We retrospectively reviewed with a d...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2018.10.013
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Intramyocardial fat deposition occurs as an age-related process and in multiple pathologic processes. OBJECTIVE:We evaluated the presence of left ventricular (LV) and right ventricular (RV) intramyocardial fat with 64-slice multidetector computed tomography (MDCT). METHODS:One hundred persons with no histo...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2008.01.004
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Hypoenhanced regions on multidetector CT (MDCT) coronary angiography correlate with myocardial hyperperfusion. In addition to a limited capillary density, chronic myocardial infarction (MI) commonly contains a considerable amount of adipose tissue. OBJECTIVE:We explored whether regional myocardial hypoenhan...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2009.12.003
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Sudden cardiac death is the leading cause of death among firefighters in the United States. Fire departments commonly maintain physical examination protocols, often with exercise stress testing, to detect risk of coronary heart disease. OBJECTIVE:We sought to determine whether coronary calcium detected by e...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2012.07.003
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Randomized trials have shown favorable clinical outcomes for coronary CT angiography (CTA) in patients with suspected acute coronary syndrome (ACS). Our goal was to estimate the cost-effectiveness of coronary CTA as compared to alternative management strategies for ACP patients over lifetime. METHODS:Markov...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2019.06.008
更新日期:2020-01-01 00:00:00
abstract::Myocardial bridging describes the clinical entity whereby a segment of coronary artery is either partially or completely covered by surrounding myocardium. It represents the most frequent congenital coronary anomaly and has an estimated prevalence of ≤13% on angiographic series. With the emergence of cardiac computed ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.jcct.2011.10.015
更新日期:2012-01-01 00:00:00
abstract:AIMS:Fractional flow reserve (FFR) pullback allows to assess the distribution of pressure loss along the coronary vessels. FFR derived from CT (FFRCT) provides a virtual pullback curve that may also aid in the assessment of the distribution of epicardial coronary resistance in the non-invasive setting. The present stud...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2019.09.004
更新日期:2020-01-01 00:00:00
abstract::ObjectiveTo assess the feasibility of dual energy CT (DECT) to derive myocardial extracellular volume (ECV) and detect myocardial ECV differences without a non-contrast acquisition, compared to single energy CT (SECT). MethodsSubjects (n = 35) with focal fibrosis (n = 17), diffuse fibrosis (n = 10), and controls (n = ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 杂志文章
doi:10.1016/j.jcct.2018.10.011
更新日期:2019-01-01 00:00:00
abstract::Computed tomography (CT) plays an important role in the workup of patients who are candidates for implantation of a catheter-based aortic valve, a procedure referred to as transcatheter aortic valve implantation (TAVI) or transcatheter aortic valve replacement (TAVR). Contrast-enhanced CT imaging provides information ...
journal_title:Journal of cardiovascular computed tomography
pub_type: 共识发展会议,杂志文章
doi:10.1016/j.jcct.2012.11.002
更新日期:2012-11-01 00:00:00