Can I read Improved Coronary Artery Definition With T2-Weighted, Free-Breathing, Three-Dimensional Coronary MRA on EtoBox?

Improved Coronary Artery Definition With T2-Weighted, Free-Breathing, Three-Dimensional Coronary MRA by René M. Botnar; Matthias Stuber; Peter G. Danias; Kraig V. Kissinger; Warren J. Manning is a Medicine article available to read on EtoBox.

What is Improved Coronary Artery Definition With T2-Weighted, Free-Breathing, Three-Dimensional Coronary MRA about?

__Background__ —Three-dimensional (3D) navigator-gated and prospectively corrected free-breathing coronary magnetic resonance angiography (MRA) allows for submillimeter image resolution but suffers from poor contrast between coronary blood and myocardium. Data collected over >100 ms/heart beat are also susceptible to bulk cardiac and respiratory motion. To address these problems, we examined the effect of a T2 preparation prepulse (T2prep) for myocardial suppression and a shortened acquisition window on coronary definition. __Methods and Results__ —Eight healthy adult subjects and 5 patients with confirmed coronary artery disease (CAD) underwent free-breathing 3D MRA with and without T2prep and with 120- and 60-ms data-acquisition windows. The T2prep resulted in a 123% ( __P__ <0.001) increase in contrast-to-noise ratio (CNR). Coronary edge definition was improved by 33% ( __P__ <0.001). Acquisition window shortening from 120 to 60 ms resulted in better vessel definition (11%; __P__ <0.001). Among patients with CAD, there was a good correspondence with disease. __Conclusions__ —Free-breathing, T2prep, 3D coronary MRA with a shorter acquisition window resulted in improved CNR and be

Who reads Improved Coronary Artery Definition With T2-Weighted, Free-Breathing, Three-Dimensional Coronary MRA?

Author

René M. Botnar; Matthias Stuber; Peter G. Danias; Kraig V. Kissinger; Warren J. Manning

Publisher

Lippincott Williams and Wilkins; Ovid Technologies Wolters Kluwer -American Heart Association; Lippincott Williams & Wilkins Ltd.; Ovid Technologies (Wolters Kluwer Health) (ISSN 0009-7322)

Published

1999

Language

EN

Field

Medicine (Health Sciences)