title: Diagnostic accuracy of 3T conventional shoulder MRI in the detection of the long head of the biceps tendon tears associated with rotator cuff tendon tears.
abstract: OBJECTIVE
  To evaluate the diagnostic performance (DP) of 3T (3 Tesla field strength) conventional shoulder magnetic resonance imaging (MRI) in detecting the long head of the biceps tendon (LHBT) tears in association with rotator cuff tendon tears.
  
  
  METHODS
  This study included 80 consecutive patients who underwent arthroscopic surgery for rotator cuff tendon tears. Two radiologists independently evaluated the preoperative 3T shoulder MRI for the presence of LHBT tears. The DP of MRI was evaluated using the results of arthroscopy as the reference standard. We also evaluated the DP of several MR signs of LHBT in detection of partial LHBT tears.
  
  
  RESULTS
  Arthroscopic examination revealed 35 partial and 5 complete tears. According to the results of evaluation by reviewers 1 and 2, shoulder MRI exhibited sensitivities of 77.14 and 80 % and specificities of 71.11 and 73.33 % in detection of partial LHBT tears and sensitivities of 80 and 100 % and a specificity of 100% (both) in detection of complete LHBT tears. In detecting partial LHBT tears, increased T2 signal intensity of the LHBT exhibited high sensitivities (reviewers 1 and 2; 82.85 and 80 %, respectively) and the presence of intratendinous defects or C-signs exhibited the highest specificities (reviewers 1 and 2; 95.55 and 93.33 %, respectively), followed by abnormalities in shape and outer margins of the LHBT (reviewers 1 and 2; 91.11 and 82 %; 91.11 and 86.66 %, respectively).
  
  
  CONCLUSIONS
  Non-contrast-enhanced 3T shoulder MRI is potentially highly accurate in detection of complete LHBT tears, but moderately accurate in detection of partial LHBT tears.
authors.affiliation: Department of Radiology, Asan Foundation, Gangneung Asan Hospital, University of Ulsan, College of Medicine, 38, Bangdong-gil, Sacheon-Myeon, Gangneung-si, Gangwon-do, 25440, South Korea.
authors.forename: Ro Woon
authors.initials: RW
authors.lastname: Lee
authors.affiliation: Department of Radiology, Asan Foundation, Gangneung Asan Hospital, University of Ulsan, College of Medicine, 38, Bangdong-gil, Sacheon-Myeon, Gangneung-si, Gangwon-do, 25440, South Korea. sjchoi@gnah.co.kr.
authors.forename: Soo-Jung
authors.initials: SJ
authors.lastname: Choi
authors.affiliation: Department of Radiology, Andong Medical Center, 55, Taesa 2-gil, Andong-si, Gyeongsangbuk-do, 36694, South Korea.
authors.forename: Man Ho
authors.initials: MH
authors.lastname: Lee
authors.affiliation: Department of Radiology, Asan Foundation, Gangneung Asan Hospital, University of Ulsan, College of Medicine, 38, Bangdong-gil, Sacheon-Myeon, Gangneung-si, Gangwon-do, 25440, South Korea.
authors.forename: Jae Hong
authors.initials: JH
authors.lastname: Ahn
authors.affiliation: Department of Radiology, Asan Foundation, Gangneung Asan Hospital, University of Ulsan, College of Medicine, 38, Bangdong-gil, Sacheon-Myeon, Gangneung-si, Gangwon-do, 25440, South Korea.
authors.forename: Dong Rock
authors.initials: DR
authors.lastname: Shin
authors.affiliation: Department of Radiology, Asan Foundation, Gangneung Asan Hospital, University of Ulsan, College of Medicine, 38, Bangdong-gil, Sacheon-Myeon, Gangneung-si, Gangwon-do, 25440, South Korea.
authors.forename: Chae Hoon
authors.initials: CH
authors.lastname: Kang
authors.affiliation: Department of Orthopedic Surgery, Asan Foundation, Gangneung Asan Hospital, University of Ulsan, College of Medicine, 38, Bangdong-gil, Sacheon-Myeon, Gangneung-si, Gangwon-do, 25440, South Korea.
authors.forename: Ki Won
authors.initials: KW
authors.lastname: Lee
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001182:Arthroscopy; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D000070636:Rotator Cuff Injuries / Q000000981:diagnostic imaging* / Q000601:surgery; D012680:Sensitivity and Specificity; D012782:Shoulder / Q000000981:diagnostic imaging*; D012785:Shoulder Joint / Q000000981:diagnostic imaging
keywords: LHBT; MRI; Rotator cuff tendon; Shoulder