Vascular and Interventional Radiology

Uterine Fibroid Tumors: Long-term MR Imaging Outcome after Embolization

PURPOSE: To assess and report the long-term magnetic resonance (MR) imaging outcomes of fibroid tumors treated with uterine artery embolization (UAE).

MATERIALS AND METHODS: Contrast material–enhanced pelvic MR imaging was performed in 20 patients before UAE, at 3 months after UAE, and then yearly for up to 3 years. Two readers compared the uterine fibroid, dominant (ie, largest) fibroid, and percentage of perfusion measurements from each of these examinations by using intraclass correlations. Seventeen patients underwent contrast-enhanced MR imaging at baseline and 3 months and 3 years after treatment. Among these patients, those with complete infarction were compared with those with incomplete infarction of the dominant fibroid at 3 years to determine extents of infarction, differences in baseline characteristics, degrees of volume reduction of the uterus and fibroid, and extents of symptom change. Comparisons were performed by using t and Pearson χ2 tests. Differences in proportions, with 95% CIs, were calculated. Each follow-up MR image was also evaluated for the presence of myometrial perfusion defects and new fibroids.

RESULTS: Intraclass correlation coefficients calculated for the two readers (range, 0.974–0.995) and with the MR imaging data (range, 0.966–0.988) were high. Of the 17 patients included in the outcome analysis, the 12 with complete fibroid infarction were more likely not to have enhancing lesions at 3-year follow-up (P = .002) than were those with incomplete infarction. No significant differences in volume or symptom changes between the two groups were detected, but growth of residual perfused portions of the incompletely infarcted fibroids was seen in three patients, two of whom had recurrent symptoms. Four patients developed new fibroids, none of which has caused symptoms. There were no instances of myometrial infarction.

CONCLUSION: Although the small study population prevented the drawing of definitive conclusions, the data suggest that although incomplete fibroid infarction may not affect outcome immediately, regrowth of uninfarcted fibroid tissue may result in symptom recurrence.

© RSNA, 2004

References

  • 1 Andersen PE, Lund N, Justesen P, Munk T, Elle B, Floridon C. Uterine artery embolization for symptomatic uterine fibroids: initial success and short-term results. Acta Radiol 2001; 42:234-238.
  • 2 Goodwin S, McLucas B, Lee M, et al. Uterine artery embolization for the treatment of uterine leiomyomata: midterm results. J Vasc Interv Radiol 1999; 10:1159-1165.
  • 3 Pelage J, LeDref O, Soyer P, et al. Fibroid-related menorrhagia: treatment with superselective embolization of the uterine arteries and midterm follow-up. Radiology 2000; 215:428-431.
  • 4 Spies J, Ascher SA, Roth AR, Kim J, Levy EB, Gomez-Jorge J. Uterine artery embolization for leiomyomata. Obstet Gynecol 2001; 98:29-34.
  • 5 Walker WJ, Pelage JP. Uterine artery embolisation for symptomatic fibroids: clinical results in 400 women with imaging follow up. BJOG 2002; 109:1262-1272.
  • 6 Ravina J, Ciraru-Vigneron N, Aymard A, Ferrand J, Merland J. Uterine artery embolisation for fibroid disease: results of a 6 year study. Minim Invasive Ther Allied Technol 1999; 8:441-447.
  • 7 Jha R, Ascher S, Imaoka I, Spies J. Symptomatic fibroleiomyomata: MR imaging of the uterus before and after uterine arterial embolization. Radiology 2000; 217:228-235.
  • 8 Orsini L, Salardi S, Pilu G, Bovicelli L, Cacciari E. Pelvic organs in premenarcheal girls: real-time ultrasonography. Radiology 1984; 153:113-116.
  • 9 Burn PR, McCall JM, Chinn RJ, Vashisht A, Smith JR, Healy JC. Uterine fibroleiomyoma: MR imaging appearances before and after embolization of uterine arteries. Radiology 2000; 214:729-734.
  • 10 deSouza N, Williams A. Uterine arterial embolization for leiomyomas: perfusion and volume changes at MR imaging and relation to clinical outcome. Radiology 2002; 222:367-374.
  • 11 McCluggage WG, Ellis PK, McClure N, Walker WJ, Jackson PA, Manek S. Pathologic features of uterine leiomyomas following uterine artery embolization. Int J Gynecol Pathol 2000; 19:342-347.
  • 12 Banovac F, Ascher SM, Jones DA, Black MD, Smith JC, Spies JB. MR imaging outcome after uterine artery embolization for leiomyomata using tris-acryl gelatin microspheres. J Vasc Interv Radiol 2002; 13:681-688.
  • 13 Nikolic B, Spies J, Abbara S, Goodwin S. Ovarian artery supply of uterine fibroids as a cause of treatment failure after uterine artery embolization: a case report. J Vasc Interv Radiol 1999; 10:1167-1170.
  • 14 Keyoung JA, Levy EB, Roth AR, Gomez-Jorge J, Chang TC, Spies JB. Intraarterial lidocaine for pain control after uterine artery embolization for leiomyomata. J Vasc Interv Radiol 2001; 12:1065-1069.
  • 15 Hutchins F, Worthington-Kirsch R, Berkowitz R. Selective uterine artery embolization as primary treatment for symptomatic leiomyomata uteri. J Am Assoc Gynecol Laparosc 1999; 6:279-284.
  • 16 Spies J, Roth AR, Jha R, et al. Uterine artery embolization for leiomyomata: factors associated with successful symptomatic and imaging outcome. Radiology 2002; 222:45-52.

Article History

Published in print: Mar 2004