摘要
Abstract
Objective:To explore the application value of CT and MRI in the diagnosis of anterior cruciate ligament(ACL)tears in the knee joint.Methods:86 patients with ACL tears treated at Sanshui Hospital,Foshan Hospital of Traditional Chinese Medicine,from August 2020 to August 2023 were selected as the research objects.All patients underwent CT and MRI examinations.Arthroscopic examination results were taken as the gold standard to analyze the application value of the two detection methods in the diagnosis of ACL tears.Results:Among the 86 selected patients,all were confirmed by arthroscopy,with 14 normal cases,30 partial tears,and 42 complete tears.Among them,MRI detected 14 normal cases,28 partial tears,and 40 complete tears,with a diagnostic accuracy rate of 97.67%;CT detected 10 normal cases,21 partial tears,and 34 complete tears,with a diagnostic accuracy rate of 75.58%,the diagnostic accuracy rate of MRI was higher than that of CT,and the difference was statistically significant(P＜0.05).The positive predictive value,negative predictive value,sensitivity,specificity,and diagnostic accuracy of MRI were higher than those of CT,with statistically significant differences(P＜0.05).In terms of imaging performance,CT detection of ACL tears showed low-density manifestations,with ligament widening,contraction,and ACL rupture visible in patients.If MRI shows T1 and T2 signals as low and high,respectively,it indicates that the patient's ACL tear is in the acute phase.If T1 signal is longer than T2,and the ACL appears twisted,thickened,with blurry or significantly visible tear edges,it indicates that the ACL tear is in the chronic phase,with significant signal abnormalities.Conclusion:The positive predictive value,negative predictive value,sensitivity,specificity,and diagnostic accuracy of MRI for detecting ACL tears are higher than those of CT.Additionally,MRI exhibits clear imaging characteristics,making it valuable for improving diagnostic accuracy in patients.关键词
膝关节前交叉韧带撕裂/CT/MRI/诊断应用/影像学表现Key words
Anterior cruciate ligament tear/CT/MRI/Diagnostic application/Imaging characteristics分类
医药卫生
