Evaluation of renal masses with contrast-enhanced rapid acquisition spin echo MR imaging
To assess the use of dynamic contrast-enhanced rapid acquisition spin-echo (RASE) imaging for the detection and characterization of renal masses, we evaluated 18 patients with CT evidence of 67 renal masses. The masses included 58 simple cysts, 8 solid neoplasms, and 1 pseudotumor. Patients were exa...
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Published in | Magnetic resonance imaging Vol. 11; no. 1; pp. 7 - 16 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New York, NY
Elsevier Inc
1993
Elsevier Science |
Subjects | |
Online Access | Get full text |
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Summary: | To assess the use of dynamic contrast-enhanced rapid acquisition spin-echo (RASE) imaging for the detection and characterization of renal masses, we evaluated 18 patients with CT evidence of 67 renal masses. The masses included 58 simple cysts, 8 solid neoplasms, and 1 pseudotumor. Patients were examined with standard spin-echo (SE) pulse sequences including pre- and postcontrast
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1-weighted images and noncontrast
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2-weighted images as well as pre- and postcontrast RASE images. Each pulse sequence was reviewed individually and in a group with other pulse sequences by two blinded observers. The performance of contrast-enhanced RASE imaging either alone or in combination with a
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2-weighted SE sequence resulted in improved diagnostic accuracy compared with unenhanced conventional SE and RASE sequences. The contrast-enhanced RASE sequence outperformed the contrast-enhanced
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1-weighted SE sequence for one observer; similar diagnostic accuracy was achieved with the two examinations by the other observer. Combining the
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2-weighted sequence with contrast-enhanced RASE images did not increase lesion detection but did increase the observers' confidence in making the diagnosis. Contrast-enhanced MR imaging resulted in significant improvement in the detection and characterization of renal lesions compared to unenhanced MR imaging. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0730-725X 1873-5894 |
DOI: | 10.1016/0730-725X(93)90406-4 |