| PurposeTo evaluate the value of MSCT in the diagnosis and differential diagnosis of Thyroid nodule Thyroid nodule and compare with ultrasound.Methods1.The general and imaging data of 448 patients with Thyroid nodule admitted to the Tianjin Medical University from January 2014 to December 2017 were analyzed retrospectively.CT examination was performed with Light Speet VCT64-row 128-slice spiral CT scan.CT images were analyzed by two more senior diagnosticians and the concurrent imaging diagnosis was made.Dopler also performed imaging analysis and TI-RADS classification of the lesions.Imaging analysis included the size and density of the thyroid gland,the number of Thyroid nodule and the location,size,density,shape,margin,cystic change and calcification,calcification site and capsule integrity,lymph node metastasis,etc.2.According to the gold standard,448 cases of Thyroid nodule were divided into two groups: Benign Group and Malignant Group,and malignant group when benign and malignant lesions coexisted.3.The results of imaging and pathology were compared and analyzed statistically to evaluate the diagnostic and differential value of MSCT in Thyroid nodule,and compared with ultrasound.4.SPSS16.0 software was used in data statistics,and 2 tests were used in classification and counting variables.P<0.05 the difference was statistically significant.Results1.The average age of the patients was 46.86 ± 5.62 years.The incidences of benign and malignant nodules were 46.89 ± 5.49 years and 46.85 ± 5.76 years respectively.The incidence rate of malignant nodules was 9.35% and 9.12%,respectively,and there was no significant difference between male and femalepatients with 1: 2.83,but the incidence of malignant nodules was 9.35% and 9.12%,respectively.2.There was no significant difference between benign and malignant nodules in the incidence of thyroid volume increase and density decrease.3.There was no significant difference between benign and malignant nodules in the left,right and isthmus of thyroid gland.The average length,width and height of the Thyroid nodule were 16.6±5.89 mm,12.6±5.73 mm,13.3±6.55 mm,12.7±5.75 mm,13.3 ± 6.49 mm,16.4 ± 5.91 mm,12.5 ± 5.69 mm,13.3 ± 6.78 mm,respectively,there was no significant difference among the diameter lines of the nodules.There was no significant difference in objective reduction,cystic change,calcification,number of calcifications,Thyroid nodule and rim.Thyroid nodule calcification was not statistically significant,but there was a significant difference in the calcification site,calcification in the surrounding area suggests a high probability of benign.The dynamic changes of the nodules after enhanced scanning were statistically significant.The enhancement of the nodule Rim and the reduction of the area suggested a high possibility of malignancy.A Thyroid nodule lesion that breaks through the thyroid capsule and invades the surrounding tissue with or without lymph node metastasis and thyroid-associated lymph node metastasis is a definite sign of thyroid cancer disease.4.There was no significant difference in the diagnostic accuracy between msct plain scan and doppler ultrasound in the number of Thyroid nodule nodules and in the calcification,cystic change,marginal involvement and malignancy of the nodules.Conclusions1.There were no significant differences in age,sex,hyperthyroidism and hypothyroidism,Thyroid nodule site,nodule size,nodule density,cystic change,calcification and calcification,margin and mold.2.The location of calcification and the size and shape changes of the nodules after enhancement are helpful for the differential diagnosis of benign and malignant nodules,and Thyroid nodule invasion of the surrounding tissues and lymph node metastasis is a positive sign of thyroid cancer.3.There was no significant difference in the diagnostic accuracy of CT and ultrasonography in the diagnosis of Thyroid nodule,calcification,cystic change,marginal pattern and Thyroid nodule,and in the qualitative diagnosis of benign and malignant nodules. |
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