Abstract #1575

Fat fraction and muscular volume of entire supraspinatus muscle with/without tendon tear using IDEAL-IQ sequence

Taiki Nozaki¹, Yasuyo Teramura¹, Takeshi Hara², Saya Horiuchi¹, Atsushi Tasaki³, Yasuyuki Kurihara¹, and Hiroshi Yoshioka⁴

¹Radiology, St.Luke's International Hospital, Tokyo, Japan, ²Department of Intelligent Image Information, Gifu University, ³St.Luke's International Hospital, ⁴Radiology, University of California, Irvine

Muscular atrophy and fatty degeneration of the supraspinatus muscle occurs after rotator cuff tear. It is often necessary to evaluate for these muscle abnormalities following tears to determine surgical candidacy. We usually evaluate this on a single slice. However, it is not well known whether this slice is representative of fatty degeneration and muscular atrophy overall. Furthermore, it is also not known how fatty degeneration and muscular atrophy will progress after tear. The purpose of this study was to make a standardized fat fraction and muscular volume model in patients with or without supraspinatus tendon tear using IDEAL-IQ sequence.

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