Diagnostic values of MRI and CT in posterior ankle impingement syndrome(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2020年第6期
- Page:
- 730-733
- Research Field:
- 医学影像物理
- Publishing date:
Info
- Title:
- Diagnostic values of MRI and CT in posterior ankle impingement syndrome
- Author(s):
- HUANG Bo1; WANG Zhi2
- 1.Department of Radiology, Guangxi Orthopaedics Hospital, Nanning 530012, China 2.General Practice Department, Affiliated Hospital of Xiangnan University, Chenzhou 423000, China
- Keywords:
- Keywords: posterior ankle impingement syndrome computed tomography magnetic resonance imaging
- PACS:
- R816.8；R684
- DOI:
- DOI:10.3969/j.issn.1005-202X.2020.06.014
- Abstract:
- Abstract: Objective To investigate the values of computed tomography (CT) and magnetic resonance imaging (MRI) in the diagnosis of posterior ankle impingement syndrome. Methods Eighty cases of suspected posterior ankle impingement syndrome were analyzed retrospectively. All patients underwent arthroscopic surgery, and examined with CT and MRI before surgery. The diagnostic performances of CT and MRI in posterior ankle impingement syndrome were observed. The consistency and diagnostic efficiency of the two diagnostic methods were also analyzed. Results Seventy (87.50%) of the 80 patients were diagnosed with posterior ankle impingement syndrome by arthroscopy. There were 51 (63.75%) cases diagnosed with posterior ankle impingement syndrome by CT, and 65 (81.25%) cases by MRI. The differences in diagnosis rate between CT and MRI were statistically significant (P<0.05). The specificity and positive predictive value of CT and MRI were all 100%, but the sensitivity, accuracy and negative predictive value of MRI were higher than those of CT (P<0.05). The CT diagnosis was consistent with the diagnosis of arthroscopic surgery (Kappa>0.4), and the consistency between MRI diagnosis and the diagnosis of arthroscopic surgery was relatively better (Kappa>0.7). Conclusion Compared with CT, MRI has a higher diagnostic accuracy, diagnostic efficiency and consistency in the auxiliary examination before surgery for posterior ankle impingement syndrome, with higher clinical application value.
Last Update: 2020-07-03