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Gadolinium-Enhanced MR Imaging in the Evaluation of Uterine Fibroids Treated with Uterine Artery Embolization

Tetsuya Katsumori1, Kazuhiro Nakajima and Mitsukuni Tokuhiro

1 All authors: Department of Radiology, Saiseikai Shiga Hospital, Ohashi 2-4-1, Ritto-cho, Kurita-gun, Shiga, 520-3046, Japan.



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  		Fig. 1A. —43-year-old woman with large submucosal fibroid. Enhanced T1-weighted MR image obtained before uterine artery embolization shows large submucosal fibroid (asterisk) 11 cm in maximum diameter. Uterine volume is 1286 cm3.

 


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  		Fig. 1B. —43-year-old woman with large submucosal fibroid. Enhanced T1-weighted MR image obtained 7 days after embolization shows fibroid was not enhanced, but muscular layer of uterus (arrow) enhanced.

 


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  		Fig. 1C. —43-year-old woman with large submucosal fibroid. Enhanced T1-weighted MR image obtained 4 months after uterine artery embolization shows uterine fibroid decreased to 9 cm in maximum diameter (46% tumor volume reduction) and was not enhancing. Muscular layer of uterus is enhanced.

 


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  		Fig. 1D. —43-year-old woman with large submucosal fibroid. Enhanced T1-weighted MR image obtained 1 year after uterine artery embolization shows fibroid and uterus both decreased. Tumor reduction rate was 56%, and uterus-volume reduction rate was 58%.

 


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  		Fig. 2A. —47-year-old woman with intramural fibroid. Enhanced T1-weighted MR image obtained before uterine artery embolization shows intramural fibroid 9 cm in maximum diameter. Uterine volume is 750 cm3.

 


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  		Fig. 2B. —47-year-old woman with intramural fibroid. Enhanced T1-weighted MR image obtained 7 days after uterine artery embolization shows 70% of fibroid region did not enhance and 30% enhanced.

 


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  		Fig. 2C. —47-year-old woman with intramural fibroid. Enhanced T1-weighted MR image obtained 4 months after uterine artery embolization shows nonenhancing area of uterine fibroid decreased, whereas enhanced area increased compared with B. Overall, tumor decreased slightly. Tumor volume reduction rate was 22%. Muscular layer of uterus is still enhanced.

 


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  		Fig. 2D. —47-year-old woman with intramural fibroid. Enhanced T1-weighted MR image obtained 11 months after uterine artery embolization shows tumor size was almost the same as in C. Tumor reduction rate was 27%, and uterus-volume reduction rate was 18%.

 

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