Image Quality and Diagnostic Performance of Accelerated Shoulder MRI With Deep Learning-Based Reconstruction

被引:66
作者
Hahn, Seok [1 ]
Yi, Jisook [1 ]
Lee, Ho-Joon [1 ]
Lee, Yedaun [1 ]
Lim, Yun-Jung [1 ]
Bang, Jin-Young [2 ]
Kim, Hyunwoong [3 ]
Lee, Joonsung [4 ]
机构
[1] Inje Univ, Haeundae Paik Hosp, Dept Radiol, Coll Med, Haeundae Ro 875, Busan 48108, South Korea
[2] Inje Univ, Haeundae Paik Hosp, Dept Orthoped Surg, Coll Med, Busan, South Korea
[3] Inje Univ, Haeundae Paik Hosp, Clin Trial Ctr, Coll Med, Busan, South Korea
[4] GE Healthcare Korea, Seoul, South Korea
关键词
deep learning; glenoid labrum; MRI; rotator cuff; shoulder; FAST SPIN-ECHO; GLENOID LABRUM; TEARS; SUPRASPINATUS; ARTHROGRAPHY; AGREEMENT;
D O I
10.2214/AJR.21.26577
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
BACKGROUND. Shoulder MRI using standard multiplanar sequences requires long scan times. Accelerated sequences have tradeoffs in noise and resolution. Deep learning-based reconstruction (DLR) may allow reduced scan time with preserved image quality. OBJECTIVE. The purpose of this study was to compare standard shoulder MRI sequences and accelerated sequences without and with DLR in terms of image quality and diagnostic performance. METHODS. This retrospective study included 105 patients (45 men, 60 women; mean age, 57.6 +/- 10.9 [SD] years) who underwent a total of 110 3-T shoulder MRI examinations. Examinations included standard sequences (scan time, 9 minutes 23 seconds) and accelerated sequences (3 minutes 5 seconds; 67% reduction), both including fast spin-echo sequences in three planes. Standard sequences were reconstructed using the conventional pipeline; accelerated sequences were reconstructed using both the conventional pipeline and a commercially available DLR pipeline. Two radiologists independently assessed three image sets (standard sequence, accelerated sequence without DLR, and accelerated sequence with DLR) for subjective image quality and artifacts using 4-point scales (4 = highest quality) and identified pathologies of the subscapularis tendon, supraspinatus-infraspinatus tendon, long head of the biceps brachii tendon, and glenoid labrum. Interobserver agreement and agreement between image sets for the evaluated pathologies were assessed using weighted kappa statistics. In 27 patients who underwent arthroscopy, diagnostic performance was calculated using arthroscopic findings as a reference standard. RESULTS. Mean subjective image quality scores for readers 1 and 2 were 10.6 +/- 1.2 and 10.5 +/- 1.4 for the standard sequence, 8.1 +/- 1.3 and 7.2 +/- 1.1 for the accelerated sequence without DLR, and 10.7 +/- 1.2 and 10.5 +/- 1.6 for the accelerated sequence with DLR. Mean artifact scores for readers 1 and 2 were 9.3 +/- 1.2 and 10.0 +/- 1.0 for the standard sequence, 7.3 +/- 1.3 and 9.1 +/- 0.8 for the accelerated sequence without DLR, and 9.4 +/- 1.2 and 9.8 +/- 0.8 for the accelerated sequence with DLR. Interobserver agreement ranged from kappa of 0.813-0.951 except for accelerated sequence without DLR for the supraspinatus-infraspinatus tendon (kappa = 0.673). Agreement between image sets ranged from kappa of 0.809-0.957 except for reader 1 for supraspinatus-infraspinatus tendon (kappa = 0.663-0.700). Accuracy, sensitivity, and specificity for tears of the four structures were not different (p > .05) among image sets. CONCLUSION. Accelerated sequences with DLR provide 67% scan time reduction with similar subjective image quality, artifacts, and diagnostic performance to standard sequences. CLINICAL IMPACT. Accelerated sequences with DLR may provide an alternative to standard sequences for clinical shoulder MRI.
引用
收藏
页码:506 / 516
页数:11
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