J Korean Radiol Soc.  2008 Jul;59(1):13-20. 10.3348/jkrs.2008.59.1.13.

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

• Yang SB
• Lee SJ
• Choi GC
• Im HH
• Goo DE
• Lee HK
• Choi DL
• Kwon GH
• Chang YW
• Cha IH

• KMID: 1479059
• DOI: http://doi.org/10.3348/jkrs.2008.59.1.13

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.

Keyword

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

MeSH Terms

Embolization, Therapeutic
Female
Humans
Leiomyoma
Myoma
Prospective Studies
Radiology, Interventional
Tomography, X-Ray Computed
Uterine Artery Embolization
Uterine Neoplasms