Consistency study of FRACTURE sequence and CT in evaluating bone changes of knee and ankle
10.3760/cma.j.cn112149-20220207-00094
- VernacularTitle:FRACTURE序列与CT评估膝关节和踝关节骨质改变的一致性研究
- Author:
Nan WANG
1
;
Qingwei SONG
;
Ailian LIU
;
Lihua CHEN
;
Haonan ZHANG
;
Mingli GAO
;
Jiazheng WANG
;
Liangjie LIN
;
Qingping GU
Author Information
1. 大连医科大学附属第一医院放射科，大连 116000
- Keywords:
Magnetic resonance imaging;
Knee joint;
Ankle joint;
Fast field echo resembling a CT using restricted echo-spacing
- From:
Chinese Journal of Radiology
2023;57(3):294-299
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the consistency of MRI fast field echo resembling a CT using restricted echo-spacing (FRACTURE) and CT in the evaluation of knee and ankle bone changes.Methods:From November 2020 to November 2021, seventeen patients who underwent CT and MRI FRACTURE examinations of knee joint or ankle joint in the First Affiliated Hospital of Dalian Medical University were retrospectively collected, including 14 patients with knee joint examinations and 3 patients with ankle joint examinations. According to the number of joint components, 80 components were included, including 14 for femur and patella, 17 for tibia and fibula, and 3 for talus, scaphoid, medial cuneiform, medial cuneiform, lateral cuneiform and calcaneus, respectively. The fracture, hyperosteogeny, and bone destruction of the joint bones were evaluated by two observers using CT and FRACTURE images, respectively. Kappa test was used to analyze the consistency of CT and FRACTURE images between observers in the evaluation of joint bone lesions.Results:The Kappa values (95%CI) of the consistency evaluation of fracture, hyperosteogeny, and bone destruction by CT and FRACTURE images were 0.925 (0.823-1.027), 0.905 (0.799-1.011) and 0.895(0.752-1.038) respectively for observer 1, and were 0.963 (0.892-1.034), 0.933 (0.843-1.023) and 0.886 (0.731-1.041) respectively for observer 2. The Kappa values (95%CI) of the consistency evaluation of fracture, hyperosteogeny, and bone destruction by observers 1 and 2 via CT images were 1.000 (1.000-1.000), 0.937(0.851-1.023) and 0.945 (0.839-1.051) respectively, and that by FRACTURE images were 0.962 (0.888-1.036), 0.966 (0.899-1.033) and 0.836 (0.656-1.016) respectively.Conclusion:For the evaluation of fracture, hyperosteogeny, and bone destruction of knee joint and ankle joint, MRI FRACTURE sequence is highly consistent with CT.
