TY - JOUR
T1 - Evaluation of the subscapularis tendon tears on 3t magnetic resonance arthrography
T2 - Comparison of diagnostic performance of T1-weighted spectral presaturation with inversion-recovery and T2-weighted turbo spin-echo sequences
AU - Lee, Hoseok
AU - Ahn, Joong Mo
AU - Kang, Yusuhn
AU - Oh, Joo Han
AU - Lee, Eugene
AU - Lee, Joon Woo
AU - Kang, Heung Sik
N1 - Publisher Copyright:
© 2018 The Korean Society of Radiology.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Objective: To compare the T1-weighted spectral presaturation with inversion-recovery sequences (T1 SPIR) with T2-weighted turbo spin-echo sequences (T2 TSE) on 3T magnetic resonance arthrography (MRA) in the evaluation of the subscapularis (SSC) tendon tear with arthroscopic findings as the reference standard. Materials and Methods: This retrospective study included 120 consecutive patients who had undergone MRA within 3 months between April and December 2015. Two musculoskeletal radiologists blinded to the arthroscopic results evaluated T1 SPIR and T2 TSE images in separate sessions for the integrity of the SSC tendon, examining normal/articular-surface partial-thickness tear (PTTa)/full-thickness tear (FTT). Diagnostic performance of T1 SPIR and T2 TSE was calculated with arthroscopic results as the reference standard, and sensitivity, specificity, and accuracy were compared using the McNemar test. Interobserver agreement was measured with kappa (κ) statistics. Results: There were 74 SSC tendon tears (36 PTTa and 38 FTT) confirmed by arthroscopy. Significant differences were found in the sensitivity and accuracy between T1 SPIR and T2 TSE using the McNemar test, with respective rates of 95.9−94.6% vs. 71.6−75.7% and 90.8−91.7% vs. 79.2−83.3% for detecting tear; 55.3% vs. 31.6−34.2% and 85.8% vs. 78.3−79.2%, respectively, for FTT; and 91.7−97.2% vs. 58.3−61.1% and 89% vs. 78−79.3%, respectively, for PTTa. Interobserver agreement for T1 SPIR was almost perfect for T1 SPIR (κ = 0.839) and substantial for T2 TSE (κ = 0.769). Conclusion: T1-weighted spectral presaturation with inversion-recovery sequences is more sensitive and accurate compared to T2 TSE in detecting SSC tendon tear on 3T MRA.
AB - Objective: To compare the T1-weighted spectral presaturation with inversion-recovery sequences (T1 SPIR) with T2-weighted turbo spin-echo sequences (T2 TSE) on 3T magnetic resonance arthrography (MRA) in the evaluation of the subscapularis (SSC) tendon tear with arthroscopic findings as the reference standard. Materials and Methods: This retrospective study included 120 consecutive patients who had undergone MRA within 3 months between April and December 2015. Two musculoskeletal radiologists blinded to the arthroscopic results evaluated T1 SPIR and T2 TSE images in separate sessions for the integrity of the SSC tendon, examining normal/articular-surface partial-thickness tear (PTTa)/full-thickness tear (FTT). Diagnostic performance of T1 SPIR and T2 TSE was calculated with arthroscopic results as the reference standard, and sensitivity, specificity, and accuracy were compared using the McNemar test. Interobserver agreement was measured with kappa (κ) statistics. Results: There were 74 SSC tendon tears (36 PTTa and 38 FTT) confirmed by arthroscopy. Significant differences were found in the sensitivity and accuracy between T1 SPIR and T2 TSE using the McNemar test, with respective rates of 95.9−94.6% vs. 71.6−75.7% and 90.8−91.7% vs. 79.2−83.3% for detecting tear; 55.3% vs. 31.6−34.2% and 85.8% vs. 78.3−79.2%, respectively, for FTT; and 91.7−97.2% vs. 58.3−61.1% and 89% vs. 78−79.3%, respectively, for PTTa. Interobserver agreement for T1 SPIR was almost perfect for T1 SPIR (κ = 0.839) and substantial for T2 TSE (κ = 0.769). Conclusion: T1-weighted spectral presaturation with inversion-recovery sequences is more sensitive and accurate compared to T2 TSE in detecting SSC tendon tear on 3T MRA.
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U2 - 10.3348/kjr.2018.19.2.320
DO - 10.3348/kjr.2018.19.2.320
M3 - Article
C2 - 29520190
AN - SCOPUS:85042866395
SN - 1229-6929
VL - 19
SP - 320
EP - 327
JO - Korean Journal of Radiology
JF - Korean Journal of Radiology
IS - 2
ER -