title: Evaluation of the severity of capsular contracture using elastography after breast implant reconstruction.
abstract: BACKGROUND
  Capsular contracture around implants is a common complication after breast reconstruction. Strain elastography (STE) and shear-wave elastography (SWE) are noninvasive imaging techniques that can measure tissue stiffness and thickness of the capsule.
  
  
  OBJECTIVE
  The purposes of the study were to compare STE and SWE for measurement of capsular contracture after breast implant reconstruction using intra-class correlation coefficients (ICCs) and to investigate the correlation of these data with the Baker score, which is the most frequently used clinical staging scale for capsule contracture.
  
  
  METHODS
  The subjects were 20 patients (27 implants) who underwent breast reconstruction.
  
  
  RESULTS
  The reproducibility of SWE (ICC: 0.878) was higher than that of STE (ICC: 0.724) for measurement of capsular contracture. The correlation coefficient between measurements with the two methods was low (r = 0.6788). The Baker score had a higher correlation with measurements with SWE (r = 0.8124) compared to those with STE (r = 0.6983).
  
  
  CONCLUSIONS
  These results suggest that SWE is a better tool for assessment of the degree of capsule contracture surrounding implants after breast reconstruction.
authors.affiliation: Department of Plastic and Reconstructive Surgery, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sowa
authors.affiliation: Department of Biostatistics, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Isao
authors.initials: I
authors.lastname: Yokota
authors.affiliation: Department of Plastic and Reconstructive Surgery, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Sizu
authors.initials: S
authors.lastname: Itsukage
authors.affiliation: Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Nakatsukasa
authors.affiliation: Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Koichi
authors.initials: K
authors.lastname: Sakaguchi
authors.affiliation: Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Taguchi
authors.affiliation: Department of Plastic and Reconstructive Surgery, Kyoto Prefectural University of Medicine, Graduate School of Medical Sciences, Kyoto, Japan.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Numajiri
mesh_terms: D000328:Adult; D000368:Aged; D018427:Breast Implants / Q000009:adverse effects*; D003286:Contracture / Q000209:etiology*; D054459:Elasticity Imaging Techniques / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D055815:Young Adult
keywords: Ultrasound; breast implant; breast reconstruction; capsular contracture; shear wave elastography; strain elastography