Journal List > J Korean Radiol Soc > v.59(1) > 1004617

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Yang, Lee, Choi, Im, Goo, Lee, Choi, Kwon, Chang, and Cha: Hounsfield Number Measurement after a Uterine Fibroid Embolization: Significance as a Predictive Factor of Embolization Success
Original Article

Journal of the Korean Radiological Society 2008; 59(1): 13-20.

Published online: 31 July 2008

DOI: https://doi.org/10.3348/jkrs.2008.59.1.13

Hounsfield Number Measurement after a Uterine Fibroid Embolization: Significance as a Predictive Factor of Embolization Success

Seung Boo Yang, M.D., San Jin Lee, M.D., Gyo Chang Choi, M.D., Han Hyeok Im, M.D., Dong Erk Goo, M.D.2, He Kyung Lee, M.D.2, Deuk Lin Choi, M.D.2, Gui Hyang Kwon, M.D.2, Yun Woo Chang, M.D.2, In Ho Cha, M.D.3

Department of Radiology, Soonchunhyang University, Gumi Hospital, Gumi, Korea.

2Department of Radiology, Soonchunhyang University Hospital, Korea.

3Department of Radiology, Korea University, Guro Hospital, Korea.

Address reprint requests to: Seung Boo Yang, M.D., Department of Radiology, Soonchunhyang University Gumi Hospital 250, Gongdan-dong, Gumi-si, Kyungbuk 730-030, Korea. Tel. 82-54-468-9391, Fax. 82-54-464-9300, ysbysb@sch.ac.kr

Copyright © 2008 The Korean Society of Radiology

Abstract

Purpose

To assess the usefulness of the Hounsfield number, measured by a non-contrast enhanced pelvic CT, after a uterine artery embolization as an index of the successful outcome of a uterine fibroid embolization (UFE).

Materials and Methods

The study subjects included 15 women (age range: 28-49 years, mean age: 36.4 years) diagnosed with symptomatic uterine myomas and seen from March 2003 to August 2005. A non-contrast enhanced pelvic CT scan was performed six hours after a uterine artery embolization. The global and maximal CT numbers were measured for each myoma. In addition, a pelvic MRI was performed to measure the volume of each myoma prior to and 6 months after the UFE. The relationship between fibroid volume reduction and the global CT number were prospectively analysed.

Results

The mean global CT number was 91.25 HU in Group I and 40.8 HU in Group II. Further, the mean fibroid volume reduction rate was 73% in Group I and 10% in Group II (p < 0.05).

Conclusion

The global CT number measured by a non-contrast enhanced pelvic CT is a useful predictive factor of a successful uterine fibroid embolization.

Keywords: Uterine neoplasms, Leiomyoma, Radiology, interventional, Embolization, therapeutic, Tomography, X-Ray computed

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