Magnetic Resonance Manifestations of Endometrial Cysts at 3 T Compared With 1.5 T

Mayumi Takeuchi, Kenji Matsuzaki, Hitoshi Kubo, Hiromu Nishitani
Journal of computer assisted tomography · 2008 · vol. 32(3) , pp. 369–371 · doi:10.1097/rct.0b013e318123e872 · PMID:18520539 · W2043657824
article OA: closed CC0 ⤵ 7 in-corpus citations
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Magnetic resonance imaging at 3 T demonstrated the shading sign of endometrial cysts on T2-weighted images better than 1.5 T, with lower cyst signal intensity and a significantly lower cyst-to-muscle signal intensity ratio.

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Abstract

OBJECTIVE: To evaluate the feasibility of magnetic resonance (MR) imaging at 3 T compared with 1.5 T while focusing on the shading sign of endometrial cysts on T2-weighted images. METHODS: Fifteen ovarian endometrial cysts in 10 patients underwent pelvic MR scans on 3-T and 1.5-T scanners. Fast spin-echo T2-weighted images were obtained. The images were evaluated qualitatively for the presence of the shading sign. Quantitative evaluation was performed by comparing the cyst-to-muscle signal intensity ratio at 3 T and that at 1.5 T. RESULTS: The signal intensity of the cysts was lower at 3 T than that at 1.5 T by visual evaluation. In 2 lesions, the shading sign was demonstrated at 3 T but was not at 1.5 T. The cyst-to-muscle signal intensity ratio at 3 T was significantly lower than that at 1.5 T. CONCLUSION: Magnetic resonance imaging at 3 T is useful for the diagnosis of endometrial cysts with better demonstration of the shading sign on T2-weighted images.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Magnetic Resonance Imaging Ovarian Diseases Adult Aged Endometriosis Feasibility Studies Female Humans Magnetic Resonance Imaging Middle Aged Ovarian Diseases Prospective Studies

Citation neighborhood

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