MR-IMAGING IN THE FOLLOW-UP OF MALIGNANT AND AGGRESSIVE SOFT-TISSUE TUMORS - RESULTS OF 511 EXAMINATIONS

被引:98
作者
VANEL, D
SHAPEERO, LG
DEBAERE, T
GILLES, R
TARDIVON, A
GENIN, J
GUINEBRETIERE, JM
机构
[1] INST GUSTAVE ROUSSY,DEPT SURG,F-94805 VILLEJUIF,FRANCE
[2] CTR HOSP BICETRE,CTR INTERESTABLISSEMENT RESONANCE MAGNET,LE KREMLIN BICETR,FRANCE
[3] UNIV CALIF SAN FRANCISCO,SCH MED,DEPT RADIOL,SAN FRANCISCO,CA 94143
关键词
FIBROMATOSIS; GADOLINIUM; MAGNETIC RESONANCE; CONTRAST ENHANCEMENT; SOFT TISSUES; NEOPLASMS;
D O I
10.1148/radiology.190.1.8259417
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
PURPOSE: To present magnetic resonance (MR) imaging findings from 511 follow-up examinations of aggressive soft-tissue tumors. MATERIALS AND METHODS: One hundred eighty-two patients with aggressive soft-tissue tumors underwent postoperative T1- and T2-weighted imaging; 41 also underwent 51 gadolinium-enhanced T1-weighted examinations, and five underwent dynamic gadolinium-enhanced sub-traction imaging. RESULTS: Twenty-four of 25 patients (101 of 102 examinations) without high signal intensity (HSI) at T2-weighted imaging had no recurrence. Among 79 patients (321 examinations) who demonstrated HSI without a mass, only two tumors recurred within 1 year. An HSI mass was found in 88 studies of 78 patients and represented recurrence (n = 60), hygroma (n = 24), or a radiation-induced pseudomass (n = 4). Hygromas did not enhance, while recurrences enhanced at 1-3 minutes and postirradiation change enhanced at 4-7 minutes. CONCLUSION: T2-weighted imaging can be used to identify possible recurrence of aggressive soft-tissue tumors, while gadolinium-enhanced imaging can be used to differentiate recurrences from hygromas and inflammatory change.
引用
收藏
页码:263 / 268
页数:6
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