CT-like image based on 3D fast low-angle shot: superior diagnostic performance of ossification of the posterior longitudinal ligament.

IF 1.9 3区医学 Q2 ORTHOPEDICS

Skeletal Radiology Pub Date : 2025-02-20 DOI:10.1007/s00256-025-04891-9

Sujin Kim, Guen Young Lee, Bo Mi Chung

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引用次数: 0

Abstract

Objective: To evaluate the diagnostic performance of 3D fast low-angle shot (FLASH) compared with conventional MRI sequences for detecting OPLL.

Materials and methods: This retrospective study included 106 patients who underwent cervical spine MRI and CT. Thirty-nine and 67 patients were enrolled in the OPLL and control groups, respectively. Diagnostic performance and reader confidence for detecting OPLL were compared between conventional MRI using turbo spin echo (TSE) and conventional MRI plus 3D FLASH. Interobserver agreement was also calculated. Three subgroups were defined within the OPLL group according to the sequences required for detecting OPLL (TSE group: cases that were diagnosed as OPLL by reviewing only TSE; 3D FLASH group: cases that were diagnosed by reviewing both TSE and 3D FLASH; none group: cases that were not diagnosed on MRI). The thickness of the OPLL was compared between the subgroups.

Results: The diagnostic performance of both readers improved when 3D FLASH was added to conventional MRI, and the difference was statistically significant for reader 2 (p = 0.006). After adding 3D FLASH, reader confidence significantly increased (p < 0.001), and interobserver agreement improved from good to excellent. The three subgroups exhibited significantly different OPLL thicknesses (p = 0.008), with the thickest in the TSE group (4.5 mm), followed by the 3D FLASH (3.4 mm) and None groups (2.4 mm).

Conclusion: 3D FLASH can be helpful for detecting OPLL when combined with conventional T1- and T2-weighted imaging.

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来源期刊

Skeletal Radiology 医学-核医学

CiteScore

4.40

自引率

9.50%

发文量

253

审稿时长

3-8 weeks

期刊介绍： Skeletal Radiology provides a forum for the dissemination of current knowledge and information dealing with disorders of the musculoskeletal system including the spine. While emphasizing the radiological aspects of the many varied skeletal abnormalities, the journal also adopts an interdisciplinary approach, reflecting the membership of the International Skeletal Society. Thus, the anatomical, pathological, physiological, clinical, metabolic and epidemiological aspects of the many entities affecting the skeleton receive appropriate consideration. This is the Journal of the International Skeletal Society and the Official Journal of the Society of Skeletal Radiology and the Australasian Musculoskelelal Imaging Group.