Abstract #1421

Usefulness of PETRA imaging for frozen shoulder patients

Ryuji Nojiri¹, Yasuaki Tsurushima¹, Hiroko Fukushima¹, Masaaki Hori², Murata Katsutoshi ³, Nobuhisa Shinozaki ⁴, Yasui Kenji ⁵, Kazuhiro Maeda⁵, and Ken Okazaki ⁵

¹Radiology, Tokyo medical clinic, Tokyo, Japan, ²Radiology, Jyuntendou University Hospital, Tokyo, Japan, ³SIEMENS Healthcare Co., Tokyo, Japan, ⁴Orthopedics, Tokyo-kita medical center, Tokyo, Japan, ⁵Orthopedics, Tokyo Women’s Medical University, Tokyo, Japan

Pointwise encoding time reduction with radial acquisition (PETRA) has made it possible to visualize those tissues which have a short T2* value such as ligaments and tendons as high signal images by using ultra-short echo time (TE). In this study, we evaluated the significant difference of the thickness of the joint capsule in the axillary pouch, depending on the stage or the symptom of patients with frozen shoulder.

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