Abstract
Objective: The authors describe their initial clinical experience in comparing a spiral spin-echo technique with a fat-saturated fast spin-echo technique for imaging the pelvis. Methods: A total of 18 patients were imaged with both spiral spin-echo and fat-saturated fast spin-echo magnetic resonance imaging. The spiral spin-echo technique combines a spectrally and spatially selective radiofrequency excitation with a spiral k-space trajectory. This technique permits rapid acquisition of T2-weighted water- only images. Results: The spiral spin-echo images were judged superior to the fat-saturated fast spin-echo images in terms of uniformity of fat suppression and absence of flow-related artifacts. However, the overall image quality of the spiral spin-echo images was inferior to that of the fat-saturated fast spin-echo images, as a result of blurring caused by off-resonance effects. The two techniques were judged equivalent in terms of conspicuity of the abnormality and diagnostic information. Conclusion: The authors conclude that the spiral spin-echo technique holds promise, particularly if combined with a deblurring algorithm.
Original language | English (US) |
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Pages (from-to) | 247-251 |
Number of pages | 5 |
Journal | Canadian Association of Radiologists Journal |
Volume | 48 |
Issue number | 4 |
State | Published - Aug 1997 |
Externally published | Yes |
Keywords
- Fast spin-echo magnetic resonance imaging
- Pelvis
- Spiral magnetic resonance imaging
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging