PURPOSE It is unclear if prolonged contrast media injection, to improve right ventricular visualization during coronary CT angiography, leads to increased detection of right ventricle pathology. The purpose of this study was to evaluate right ventricle enhancement and subsequent detection of right ventricle disease during coronary CT angiography. MATERIALS AND METHODS 472 consecutive patients...

BACKGROUND We investigated the applicability and image quality of contrast-enhanced coronary artery visualization by multislice spiral CT using retrospective ECG gating. METHODS AND RESULTS Twenty-five patients in sinus rhythm (significant coronary artery stenoses ruled out by invasive angiography) were studied with a multislice spiral CT (Siemens SOMATOM Volume Zoom). In inspiration (mean br...

AIMS The aim of this study was to evaluate the diagnostic accuracy in the assessment of coronary artery bypass grafts using 64-slice computed tomography (CT) technology. METHODS AND RESULTS CT coronary angiography was performed for 96 bypasses in 31 patients with suspected coronary artery disease using a Siemens Sensation 64-slice CT-scanner and compared with invasive coronary angiography (IC...

1. Coronary Artery Calcification and Epidemiology of Coronary Calcium . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1764 1.1. Calcium Detection Methods . . . . . . . . . . . . . . .1765 1.1.1. EBCT Methods . . . . . . . . . . . . . . . . . . . .1765 1.1.2. MDCT Methods . . . . . . . . . . . . . . . . . . .1766 1.2. Coronary Artery Calcified Plaque . . . . . . . . . .1766 1.3. Speed/T...

Abstract Objectives To assess the diagnostic performance of CT-FFR for diagnosis CAD in work-up TAVI. Background Work-up transcatheter aortic valve implantation (TAVI) currently utilizes computed tomography (CT) to evaluate annulus diameter and peripheral vascular access, plus invasive coronary angiography (ICA) significant artery disease (CAD). ICA might partially be redundant with use Coronar...

64-slice CT scan is a versatile newly introduced imaging technology, which is capable of diagnosing various diseases from head to toe. The 64-slice CT coronary angiography has a negative predictive value of 100%. Virtual images of bronchi, stomach and colon can provide definite diagnosis. Coronary artery calcification score which predicts coronary artery disease can be calculated by 64-slice CT...

Fig. 1. (A) Coronary angiography showed retrograde perfusion of the left coronary ar right coronary artery arising from the right coronary sinus and an aberrant LMCA orig huge right coronary artery. (D) One-year follow-up CT demonstrated the patency of th reimplanted LMCA (*)on theascending aorta performedbecause of themajor incongruen and F) CT demonstrated the transpulmonary tunnel position o...

PURPOSE We aimed to investigate the coronary venous system and its variations by using dual source computed tomography (CT). MATERIALS AND METHODS Retrospective assessment was carried out on 339 patients who underwent coronary CT angiography using 128-slice dual source CT for suspected coronary artery disease. The examinations were performed according to routine imaging protocols used to eval...

Noninvasive detection of coronary artery stenosis with noninvasive imaging modalities (electron beam CT, MR angiography) has recently emerged. The use of helical CT in the visualization of epicardial coronary arteries is limited by cardiac motion artifacts due to long acquisition times and lack of an ECG trigger and is therefore reliable only in the determination of coronary graft patency. With...