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MR imaging of soft-tissue masses: Role of gadopentetate dimeglumine

✍ Scribed by Richard A. Benedikt; James S. Jelinek; Mark J. Kransdorf; Richard P. Moser; B. Hudson Berrey

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
776 KB
Volume
4
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

To assess the effectiveness of gadopentetate dimeglumine in the magnetic resonance (MR) imaging evaluation of soft‐tissue masses without osseous involvement, 30 patients underwent MR imaging before and after administration of contrast material (0.1 mmol/ kg) of the 30 lesions, 22 were benign and eight were malignant; histologic confirmation was available in all lesions except one benign lesion. Overall, enhancement was detected in 26 (87%) of 30 lesions: 18 (82%) of the 22 benign lesions and eight (100%) of eight malignant lesions. Enhancement was characterized as homogeneous (two [11%] benign lesions, two [25%] malignant lesions), inhomogeneous (11 [61%] benign lesions, six [75%] malignant lesions), or peripheral (five [28%] benign lesions, no malignant lesions) of the 19 lesions assessed for a change in enhancement over time, seven (37%) showed an increase and two (11%) showed a decrease in signal intensity. The authors conclude that benign and malignant soft‐tissue lesions could not be differentiated solely on the basis of enhancement (pattern, degree, or time course).

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