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Equivalent cross-relaxation rate imaging positively correlates with pathological grade and cell density of adipocytic tumors.

Abstract：

OBJECTIVE:Equivalent cross-relaxation rate imaging (ECRI) is an MRI technique used to evaluate qualitative changes in protein-water interactions. We aimed to prospectively evaluate the utility of ECRI for classification of adipocytic tumors. MATERIALS AND METHODS:Institutional Review Board approval was obtained and all patients provided informed consent. Study participants included 40 patients with adipocytic tumors who were diagnosed with lipomas (n=22), atypical lipomatous tissue/well-differentiated liposarcoma (ALT/WDL; n=9), myxoid/round cell liposarcoma (MyL; n=6), and dedifferentiated liposarcoma (DDL; n=3), and 20 control patients for whom subcutaneous fat in the buttock or thigh was analyzed. RESULTS:Mean ECR values of lipomas, ALT/WDL, and subcutaneous fat were low, and those of MyL and DDL were high. Mean ECR values of MyL and DDL were significantly higher than those of ALT/WDL. The cut-off value was 5.1%. There was a positive correlation between ECR value, pathological grade, and cell density in adipocytic tumors. CONCLUSION:The ECR value positively correlates with pathological grade and cell density of adipocytic tumors. Our findings suggest that ECRI is a useful method for preoperative evaluation of adipocytic tumors.

journal_name

Magn Reson Imaging

journal_title

Magnetic resonance imaging

authors

Okuda H,Matsushima S,Sugiura H,Yamada K,Hamada S,Nishida Y,Ishiguro N

doi

10.1016/j.mri.2013.12.004

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

206-10

issue

3

eissn

0730-725X

issn

1873-5894

pii

S0730-725X(13)00388-3

journal_volume

32

pub_type

杂志文章

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