MRI in Predicting the Response of Ovarian Endometriomas to Hormone Therapy

Sugimura K, K Sugimura, Kazuro Sugimura, Hiromi Okizuka, Okizuka H, H Okizuka, Kaji Y, Y. Kaji, Yasushi Kaji, I Imaoka, Izumi Imaoka, Imaoka I, S Shiotani, Shiotani S, Seiji Shiotani, Hidemitsu Mukumoto, H Mukumoto, Mukumoto H, K. Takahashi, Takahashi K, Kentaro Takahashi, M Kitao, Manabu Kitao, Kitao M
Journal of computer assisted tomography · 1996 · vol. 20(1) , pp. 145–150 · doi:10.1097/00004728-199601000-00026 · PMID:8576465 · W2016302520
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MRI-detected shading, low signal intensity rim, multiplicity, and irregularity were analyzed for predicting ovarian endometrioma response to hormone therapy, with shading being the most significant predictor.

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Abstract

OBJECTIVE: Our goal was to investigate the usefulness of MRI in predicting the response of endometriomas to hormone therapy. MATERIALS AND METHODS: MRI and laparoscopy at the onset of treatment and follow-up MRI after 6 months of hormone therapy were performed in 21 patients with 49 endometriomas. T1- and T2-weighted images were obtained with a 1.5 T apparatus using a body coil. The lesions were divided into a responder group and a nonresponder group according to whether the lesion size decreased by > or = 50% or not. RESULTS: With MRI, shading was seen in 25 of 27 lesions (93%) from the nonresponder group, but in only 6 of 22 (27%) from the responder group. Low SI rim was seen in 59% of the responders and 89% of the nonresponders. Multiplicity in 68% of the responders and in 85% of the nonresponders and irregularity in 41% of the responders and in 78% of the nonresponders were shown. Multiple logistic analysis revealed shading was the most important factor in prediction of the response to hormone therapy. CONCLUSION: Shading was an important sign in evaluating the response of endometriomas to hormone therapy. MRI may assist in selecting the appropriate therapy for endometriomas.
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Objective

Our goal was to investigate the usefulness of MRI in predicting the response of endometriomas to hormone therapy.

Materials and methods

MRI and laparoscopy at the onset of treatment and follow-up MRI after 6 months of hormone therapy were performed in 21 patients with 49 endometriomas. T1- and T2-weighted images were obtained with a 1.5 T apparatus using a body coil. The lesions were divided into a responder group and a nonresponder group according to whether the lesion size decreased by ≥50% or not.

Results

With MRI, shading was seen in 25 of 27 lesions (93%) from the nonresponder group, but in only 6 of 22 (27%) from the responder group. Low SI rim was seen in 59% of the responders and 89% of the nonresponders. Multiplicity in 68% of the responders and in 85% of the nonresponders and irregularity in 41% of the responders and in 78% of the nonresponders were shown. Multiple logistic analysis revealed shading was the most important factor in prediction of the response to hormone therapy.

Conclusion

Shading was an important sign in evaluating the response of endometriomas to hormone therapy. MRI may assist in selecting the appropriate therapy for endometriomas.

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Condition tags

endometriosis

MeSH descriptors

Danazol Endometriosis Estrogen Antagonists Gonadotropin-Releasing Hormone Magnetic Resonance Imaging Ovarian Diseases Adult Danazol Endometriosis Endometriosis Estrogen Antagonists Female Follow-Up Studies Forecasting Gonadotropin-Releasing Hormone Gonadotropin-Releasing Hormone Humans Laparoscopy Logistic Models Middle Aged

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