| PurPose:1.discussion on the application of optimized combination for multi-slice CT enhancement and post-processing techniques, comprehensive assessment the value of various post-processing techniques on vascular involvement of thyroid disease;2. discussed the superiority of multi-slice CT enhancement on the detection of lymph node metastasis of thyroid disease, and for the preoperative evaluation.Materials and mcthods:118 cases of thyroid diseases underwent pre-operative MSCT. Reconstruction of peripheral vessels were performed, and combined with axial images. Evaluated the value of various signs in the preoperative evaluation. Correlation was made between MSCT findings and operative results. Discuss the value of multi-slice CT enhancement on the diagnoses of lymph node metastasis of thyroid disease.Results:1.118 cases of thyroid diseases underwent pre-operative MSCT.41 cases were performed with CT plain scan,77 cases with plain enhanced scan. Pathologically confirmed,72 cases were benign and 46 cases were malignant.2. Axial images combined with reconstructed images define the vascular involvement of thyroid diseases with high detection rate, coincidence, sensitivity, specificity, positive predictive value, and negative predictive value and accuracy respectively.3. plain scan combined with enhanced scan define the lymph node metastasis of thyroid diseases with high sensitivity, Districtâ…¡have the most lymph node metastasis of thyroid diseases.4. multi-slice CT post-processing techniques profited diagnoses of tracheal stenosis of thyroid disease.Con elusion:1. the value of multi-slice CT enhancement and post-processing techniques on vascular involvement of thyroid disease deserve affirmation. Various post-processing techniques should be complement on for dimensional signs.2. the value of enhanced scan on detection of the lymph node metastasis of thyroid diseases deserve affirmation. Plain scan combined with enhanced scan should be a ordinary examination for suspected malignant thyroid disease.3. preoperative with MSCT diagnose peripheral vascular involvement and lymph node metastasis of thyroid disease has clinical significance. |