The diagnostic value of magnetic resonance imaging in the occult fracture of tarsal bones
Ma Lihua1,Li Hongqiu2,Yao Wang1
1Department of Radiology,Liaoning Electric Power Center Hospital,Shenyang 110006,China;2Department of Orthopedics,The Central Affiliated Hospital of Shenyang Medical College,Shenyang 110024,China
Abstract:ObjectiveTo explore the clinical diagnosis value of magnetic resonance imaging(MRI) in occult fracture of tarsal bones.MethodsIn 80 cases of tarsal bone trauma patients without fracture by digital radiography examination,computed tomography (CT) and MRI examinations were performed to diagnose occult fracture.The results of images were analyzed.The detection case numbers and the total detection rate of occult fracture were compared.ResultsCT examination in 80 patients showed that the bone trabeculae and bone cortex disrupted in 39 cases.Conventional MRI clearly demonstrated that the occult traumatic direct sign of fracture in 74 patients,injury of cortical bone at the discontinuity,interrupt at a strip-shaped or linear,low signal intensity in T1WI and high signal intensity in T2WI.All the patients had bone contusion, showing irregular mesh,patchy or map like lesions low signal in T1WI and high signal in T2WI.The detection rate of CT examination was 48.75%,MR T1WI was 88.75%,and MR T2WI was 100.00%.The occult fracture detection rate of MRI was significantly higher than that of CT (χ2=36.9,55.1;P<0.05).ConclusionMRI can diagnose the foot tarsal occult fracture and bone bruise effectively.If patients with tarsal bone trauma are found no fracture by radiograph or CT examination,and the injury is persistent swelling,paining,and can not by force,MRI examination should be used to diagnose whether the occult fracture or not.
马立华 李洪秋 么旺. 磁共振成像在足跗骨隐匿性骨折的诊断价值[J]. 中华诊断学电子杂志, 2017, 5(1): 12-.
Ma Lihua1,Li Hongqiu2,Yao Wang1. The diagnostic value of magnetic resonance imaging in the occult fracture of tarsal bones. zhzdx, 2017, 5(1): 12-.