The Sinus Tarsi Syndrome Research On Imaging Diagnosis

ObjectiveObserved, analysed the clinical diagnosis of sinus tarsi syndromee(S TS) patientsankle X-ray, CT and MRI imaging performance, to find the best inspection methods ofsinus tarsi syndrome, to provide reliable diag-nosis for clinical diagnosis.Materials and MethodsCollected68cases of clinical diagnosis of sinus tarsi syndrome and normal volunteers50from February2010to February2011in Affiliated Hospital of Taishan MedicalUniversity;all cases were first underwent X-ray to make sure there were no obviouspositive fracture,then inspect-ed with CT and MRI; Reconstructed the anatomicalstructure of three-d imensional tarsal sinus and the biggest walking level of the ligamentusing CT after-treatment technology afterwards, measured the volume of tarsal sinus andthe numerical value of the ligament line respectively as well as observed various changesin the tarsal sinus via different inspective me thods, and carried on statistical analysis.Using magnetic resonance scanning images to observe the imaging manifestation of thetarsal sinus as well as surrounding soft tissue and bone tissue. Contrasted CT and MRIimages of the sinus tarsi syndrome patients with normal volunteers’ in order to find thebest method of inspection.Results(1)58cases MRI images appeared abnormal signal on the tarsal sinus soft tissue in68cases of tarsal sinus syndrome, the severity of ligament injury include: I°slight ligamentinjury (32cases); II°ligament incomplete fracture (18cases);III°ligament tear (3cases).Abnormal signals of the soft tissue were not found in the sinus tarsi region of the group ofnormal volunteers.(2)41cases MRI images appeared abnormal signals on the tarsal sinusbone tissue in68cases of tarsal sinus syndrome, but only5cases of the volunteer groupwere found abnormal signals.(3) The magnetic resonance images display the soft tissueclearer than CT images, but the CT images display bone soft tissue better.(4)The volume of the tarsal sinus becomes smaller in32cases of tarsal sinus syndrome, which mainlyappeared in tarsal sinus fracture treated inappropriately and elderly patients with jointdegeneration.ConclusionContrasted to MRI and CT scanning images with sagittal, coronal, axial, obliquecoronal of patients,MRI can describe the changes of the tarsal sinus and its surround-ingaltered anatomy better including ligaments, normal adipose tissue; CT can descry-bee thesituation of bone better; Multislice spiral CT(MSCT) reconstruction technolo-gy of3Dcan visually display the ankle in the anatomical position.