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Single-shot magnetic resonance imaging: applications to angiography

Vertical Tabs

Cardiovasc Intervent Radiol
1992 Jan-Feb
15
1
32-42
Journal Articles
PubMed ID: 
1537063

Recently developed technologies that allow the collection of magnetic resonance imaging (MRI) in as little as 26 msec have been explored in their application to angiography. Advantages are demonstrated in scan time reduction, insensitivity to patient motion (especially in abdominal applications), flow quantification, and temporal resolution. We demonstrate that because such single-shot techniques are inherently resistant to flow dephasing during acquisition that allow for sustained high signal intensities to be achieved when images must be combined through the cardiac cycle. Such high temporal resolution scans may be utilized for the collection of time-resolved angiograms. With these techniques we demonstrate the collection of complete MR angiograms in the course of reasonable 10-25 sec breath holds. The relative simplicity of the technique, coupled with its overall short acquisition time, allows us to incorporate angiography into other imaging protocols without adding significant time burdens. Results to date are promising for further improvements in spatial resolution, without extension of scan time.

Year: 
1992
Single-shot magnetic resonance imaging: applications to angiography | MGH/HST Martinos Center for Biomedical Imaging

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