✦ LIBER ✦

Single breath-hold 3D contrast-enhanced method for assessment of cardiac function

✍ Scribed by A.V. Barger; T.M. Grist; W.F. Block; C.A. Mistretta

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 152 KB
Volume: 44
Category: Article
ISSN: 0740-3194
DOI: 10.1002/1522-2594(200012)44:6<821::aid-mrm1>3.0.co;2-s

No coin nor oath required. For personal study only.

✦ Synopsis

Cardiac MRI function measurements are typically performed using 2D sequences and require multiple breath-holds to image the entire heart. A single 3D acquisition using a T(1)-shortening agent has many potential advantages over techniques that acquire multiple 2D images, including more consistent contrast and precise slice coverage. However, 3D techniques currently require much longer than a single breath-hold to complete. It has been shown that for MR angiography undersampled projection reconstruction can acquire much higher resolution per unit time than Fourier imaging with acceptable artifacts. By employing a gated, undersampled projection technique, high-resolution 3D multiphase volumes of the heart can be acquired in a single breath-hold. Short repetition times result in good myocardial suppression and a temporal aperture of 60 ms.

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