Prospective correction of trigger delay for coronary artery imaging.
Published: 2006
Language: eng
Number of pages: 60
ISBN-13: 9780494212684
Description: Cardiac motion continues to limit the ability of magnetic resonance imaging (MRI) and multi-slice computed tomography (MSCT) to obtain coronary artery images with fine enough resolution to help reliably diagnose significant threats of ischemic heart disease. A generally accepted method of dealing with cardiac motion, known as gating, is to limit image data acquisition to presumed low-motion periods in the heart. Formulae have been accepted for crudely approximating the onset and duration of these periods. Recently, the concept of these periods undergoing substantial tranformations with heart rate has been investigated. This work examines how the electrocardiogram (ECG) can be used to adapt imaging trigger delays to this effect. The developments described in the thesis are intended to advance the ability of prospective gating to adapt to heart rate variations. Ultimately, this may improve the ability of MRI and MSCT to provide sharp coronary artery images.
Notes: Source: Masters Abstracts International, Volume: 45-03, page: 1414.

Thesis (M.Sc.)--University of Toronto, 2006.

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