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Elsevier Science

Magn Reson Imaging. 1990;8(3):213-5. doi: 10.1016/0730-725x(90)90091-f.

Subtraction technique for contrast-enhanced MR images of musculoskeletal tumors.

Magnetic resonance imaging

S L Hanna, J W Langston, S A Gronemeyer, B D Fletcher

Affiliations

  1. Department of Diagnostic Imaging, St. Jude Children's Research Hospital 38101.

PMID: 2195271 DOI: 10.1016/0730-725x(90)90091-f

Abstract

Vascularized malignant tissue, fat and hemorrhage may have similar intensities on Gd-DTPA-enhanced, T1-weighted MRI performed to evaluate musculoskeletal tumors. We describe a simple, rapid post-processing subtraction technique which resulted in improved definition of these tissues in 33 of 42 examinations. While the subtraction process is susceptible to complex patient motion, the improved contrast can be obtained without modifying standard pulse sequences.

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