Evaluation of a semiautomatic software tool for left ventricular function analysis with 16-slice computed tomography.

The purpose of the study was to evaluate a semiautomatic analysis tool for assessing global left ventricular myocardial function with multislice computed tomography (MSCT). We examined 33 patients with MSCT using 16x0.5 mm detector collimation and magnetic resonance imaging (MRI) on a 1.

Multislice computed tomography for preoperative evaluation of right ventricular volumes and function: comparison with magnetic resonance imaging.

Background: This study was performed to validate preoperative right ventricular measurements obtained from multislice spiral computed tomography data sets in comparison with magnetic resonance imaging.

Methods: Before cardiac surgery, 25 patients (among them 12 patients with compromised right ventricular function) underwent contrast-enhanced retrospectively electrocardiogram-gated multislice spiral computed tomography and cine magnetic resonance imaging in a standardized fashion. Right ventricular end-diastolic, end-systolic and stroke volume, ejection fraction, and myocardial mass were calculated according to the slice summation method.

Magnetic resonance imaging of myocardial perfusion and viability using a blood pool contrast agent.

Rationale And Objectives: A comprehensive cardiac magnetic resonance (MR) examination should comprise imaging of myocardial perfusion, viability, and the coronary arteries. Blood pool contrast agents (BPCAs) improve coronary MR angiography, whereas their potential for imaging of perfusion and viability is unknown. The abilities to noninvasively image myocardial perfusion and viability using the BPCA P792 (Guerbet, France) were tested in a closed-chest model of nonreperfused myocardial infarction in 5 pigs.

Assessment of myocardial infarction in pigs using a rapid clearance blood pool contrast medium.

Delayed enhancement MRI using extracellular contrast media allows reliable detection of myocardial infarction. If blood pool contrast media like P792 (Vistarem, Guerbet, France), in addition to improving coronary MR angiography, can be shown to also produce delayed enhancement in myocardial infarction they could improve the prerequisites for a comprehensive cardiac MR examination. In this study reperfused myocardial infarction in five minipigs was imaged with an inversion-recovery fast low-angle shot sequence using P792 (0.

Multisegment and halfscan reconstruction of 16-slice computed tomography for detection of coronary artery stenoses.

Rationale And Objectives: To compare the diagnostic accuracy and image quality of 2 reconstruction algorithms (multisegment and halfscan) for computed tomography (CT) coronary angiography in patients without beta-blocker medication.

Materials And Methods: Thirty-four patients with 42 significant coronary stenoses in 136 main coronary branches were examined using a 16-slice CT scanner (Aquilion, Toshiba, Otawara, Japan). Twenty-seven patients (79%) had heart rates above 65 beats/min.

Isotropic half-millimeter angiography of coronary artery bypass grafts with 16-slice computed tomography.

Background: Computed tomography (CT) with four detector rows and magnetic resonance imaging (MRI) are still of limited value for the assessment of coronary artery bypass grafts (CABG). We investigated the abilities of 16-slice CT in these patients.

Methods: A retrospective analysis of all noninvasive coronary angiographies with multislice computed tomography (MSCT; Aquilion, Toshiba) on patients with CABG referred to our institution between October 2002 and April 2003 was conducted.

[Noninvasive diagnosis of coronary artery disease].

Background: Coronary artery disease (CAD) is one of the most common diseases that accounts for a considerable part of health care reimbursement. Thus, noninvasive diagnosis of CAD is likewise of pivotal importance for medical care today.

Noninvasive Diagnosis Of Cad: In this review, the authors present the entire spectrum of noninvasive diagnostic methods available for CAD starting with a Ergomedescription and discussion of the simplest and most important clinical approaches (patients' complaints, risk factors, electrocardiogram, and treadmill test).

Coronary artery disease: new insights and their implications for radiology.

Coronary artery disease (CAD) diminishes local, regional, or global blood supply to the heart and is most commonly caused by coronary atherosclerosis. New insights into the etiology of atherosclerosis suggest that CAD is an inflammatory disorder that responds well to modulation rather than an unchangeable chronic process. Since 75% of all acute coronary syndromes result from rupture of atherosclerotic plaques, factors causing rupture have a crucial role.

[Peer-education workshop on research during medical studies. Results of a survey among participants].

Background And Objective: Physicians in Germany are conferred the title "Doctor of medicine" (MD) upon successful completion of a dissertation. There is no course in the German medical curriculum that enables students to pursue original research. CONCEPT AND METHODS: We sought to address this lack of adequate preparation through a student-organized, hands-on workshop, which was problem- and, in part, computer-based.