Diagnostic value of MRI using proton density-weighted fat-saturated sequence for bone marrow edema in osteoarticular injury(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2024年第2期
- Page:
- 181-184
- Research Field:
- 医学影像物理
- Publishing date:
Info
- Title:
- Diagnostic value of MRI using proton density-weighted fat-saturated sequence for bone marrow edema in osteoarticular injury
- Author(s):
- GAO Yan1; PAN Xiaowen1; DONG Wanting1; XIAO Peng2
- 1. Department of Medical Imaging, Sichuan Province Orthopedic Hospital, Chengdu 610041, China 2. Department of Orthopedics, Sichuan Province Orthopedic Hospital, Chengdu 610041, China
- Keywords:
- Keywords: magnetic resonance imaging proton density-weighted fat-saturated bone and joint trauma bone marrow edema signal intensity image quality
- PACS:
- R816.8
- DOI:
- DOI:10.3969/j.issn.1005-202X.2024.02.009
- Abstract:
- Abstract: Objective To analyze the value of magnetic resonance proton density-weighted fat-saturated (PDWI-FS) sequence in the diagnosis of bone marrow edema (BME) in osteoarticular injury. Methods A total of 150 patients with bone and joint trauma were enrolled in the study. All patients underwent sagittal PDWI-FS sequence scan and conventional MRI sequence scan. The BME detection, signal intensity, image quality, and the signal-to-noise ratio and contrast-to-noise ratio of the lesions were compared between two methods. Results Both methods revealed that there were 225 sites of BME signs in 134 out of the 150 patients, with a higher prevalence in knee joint trauma patients. The signal intensity of the lesions was mainly grade 3 on PDWI-FS sequence and grade 2 on conventional MRI sequence, accounting for 97.78% (220/225) and 43.11% (97/225), indicating that the two methods graded signal intensity differently (Z=15.919, P<0.05). PDWI-FS sequence and conventional sequence had scores of 4.09±0.45 vs 3.88±0.39, 3.65±0.42 vs 3.41±0.36, 3.25±0.37 vs 3.14±0.35 and 4.21±0.38 vs 3.97±0.34 on lesion clarity, spatial resolution, anamorphosis and diagnostic confidence, and the former scored higher (t=4.319, 5.314, 2.645, 5.765 P<0.05). The signal-to-noise ratio and contrast-to-noise ratio of the lesions on PDWI-FS sequence were 2.07±0.23 and 5.52±0.64, higher than 2.01±0.22 and 5.17±0.59 on conventional sequence, and the differences were statistically significant (t=2.309, 4.925 P<0.05). Conclusion Compared with conventional MRI sequence, magnetic resonance PDWI-FS sequence can effectively enhance image quality and display lesions more clearly, providing more accurate information for the diagnosis of BME in osteoarticular injury.
Last Update: 2024-02-27