Abstract
Objective To retrospectively compare the diagnostic performance of isotropic 3D steady-state free precession (3D-SSFP) sequences with 2D turbo spin-echo proton density-weighted fat-saturated (2D-TSE-PD fs) images in hip magnetic resonance arthrography;arthroscopy was a standard of reference. Methods Eighty-one patients with suspected labral tears who underwent hip MR arthrography (3-T scanner) were included. 2D-TSE-PD fs sequences were acquired in three planes and a singular sagittal 3D-SSFP. Labral tears, cartilage pathology and bone marrow were independently assessed by two blinded radiologists using a 5-point Likert scale. Accuracy was determined in 39 patients using invasive arthroscopy. Results Diagnostic confidence of labral and cartilaginous pathologies based on image quality was rated higher for 3D-SSFP (4.5 +/- 0.8;4.35 +/- 0.7;p < 0.0001), but inferior for bone marrow pathology (3.9 +/- 0.7;4.0 +/- 0.7;p < 0.0001). In the arthroscopy patients, similar sensitivity (85.9%) but higher specificity (74.4vs.42.9%) and higher positive and negative predictive values were found in 3D-SSFP of labral and cartilage pathologies. Conclusions 3D-SSFP in hip magnetic resonance arthrography offers increased accuracy in detecting labral and cartilage pathologies compared with 2D-TSE-PD, while reducing the acquisition time. A drawback of 3D-SSFP was the inferior diagnostic confidence for bone marrow evaluation;thus, 3D-SSFP should be combined with conventional 2D-TSE sequences.
| Item Type: | Journal article |
|---|---|
| Faculties: | Medicine |
| Subjects: | 600 Technology > 610 Medicine and health |
| ISSN: | 0364-2348 |
| Language: | English |
| Item ID: | 64078 |
| Date Deposited: | 19. Jul 2019, 12:14 |
| Last Modified: | 04. Nov 2020, 13:43 |
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