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Image quality and diagnostic performance of silicone-specific breast MRI.

AbstractPURPOSE:
To compare the image quality of three techniques and diagnostic performance in detecting implant rupture.
MATERIALS AND METHODS:
The study included 161 implants for the evaluation of image quality, composed of water-saturated short TI inversion recovery (herein called "water-sat STIR"), three-point Dixon techniques (herein called "Dixon"), and short TI inversion recovery fast spin-echo with iterative decomposition of silicone and water using least-squares approximation (herein called "STIR IDEAL") and included 41 implants for the evaluation of diagnostic performance in detecting rupture, composed of water-sat STIR and STIR IDEAL. Six image quality categories were evaluated and three classifications were used: normal implant, possible rupture, and definite rupture.
RESULTS:
Statistically significant differences were noted for the image quality categories (p<0.001). STIR IDEAL was superior or equal to water-sat STIR in all image quality categories except artifact effects and superior to Dixon in all categories. Water-sat STIR performed the poorest for water suppression uniformity. The sensitivity and specificity in detecting implant rupture of STIR-IDEAL were 81.8 % and 77.8 % and the difference between two techniques was not statistically significant.
CONCLUSION:
STIR-IDEAL is a useful silicone-specific imaging technique demonstrating more robust water suppression and equivalent diagnostic accuracy for detecting implant rupture, than water-sat STIR, at the cost of longer scan time and an increase in minor motion artifacts.
AuthorsSung Hun Kim, Jafi A Lipson, Catherine J Moran, Ann Shimakawa, James Kuo, Debra M Ikeda, Bruce L Daniel
JournalMagnetic resonance imaging (Magn Reson Imaging) Vol. 31 Issue 9 Pg. 1472-8 (Nov 2013) ISSN: 1873-5894 [Electronic] Netherlands
PMID23895871 (Publication Type: Comparative Study, Journal Article)
CopyrightCopyright © 2013 Elsevier Inc. All rights reserved.
Chemical References
  • Silicones
Topics
  • Adipose Tissue (pathology)
  • Adult
  • Algorithms
  • Artifacts
  • Breast (pathology)
  • Breast Implants
  • Female
  • Humans
  • Image Processing, Computer-Assisted
  • Least-Squares Analysis
  • Magnetic Resonance Imaging
  • Middle Aged
  • Observer Variation
  • Prosthesis Failure
  • Reproducibility of Results
  • Retrospective Studies
  • Sensitivity and Specificity
  • Silicones (chemistry)

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