FELLNER, C and STROTZER, M and GEISSLER, A and KOHLER, SM and KRAMER, BK and SPIES, V and HELD, P and GMEINWIESER, J (1995) RENAL-ARTERIES - EVALUATION WITH OPTIMIZED 2D AND 3D TIME-OF-FLIGHT MR-ANGIOGRAPHY. RADIOLOGY, 196 (3). pp. 681-687. ISSN 0033-8419,
Full text not available from this repository.Abstract
PURPOSE: To compare two-dimensional (2D) and three-dimensional (3D) time-of-night (TOF) techniques in magnetic resonance (MR) angiography of renal arteries. MATERIALS AND METHODS: In 46 patients, MR angiography was performed with 3D tilted optimized nonsaturating excitation (TONE),3D fast imaging with steady precession (FISP), and 2D fast low-angle shot (FLASH) during breath holding. Intraarterial angiography was used as a reference. MR angiograms were evaluated for stenoses, length of renal arteries, accessory arteries, venous overlap, and image quality. RESULTS: The 3D TONE sequence was best for detection of severe stenoses (sensitivity, 100%; specificity, 89%), delineation of accessory arteries, and image quality. Overlap of renal veins was the most important disadvantage of 2D FLASH. Decreased saturation effects, however, can be advantageous in 2D TOF imaging. CONCLUSION: Use of the 3D TONE sequence provided improved image quality and diagnostic value compared with 3D FISP technique. The 2D TOF sequence can be useful in combination with the 3D TONE sequence.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ; MAGNETIC RESONANCE (MR), PULSE SEQUENCES; MAGNETIC RESONANCE (MR), VASCULAR STUDIES; RENAL ANGIOGRAPHY; RENAL ARTERIES, MR; RENAL ARTERIES, STENOSIS OR OBSTRUCTION |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52368 |
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