High Frequency Ultrasound In The Study Of Early Diagnosis Of Papillary Carcinoma Of Thyroid

Objective:By observing the thyroid papillary carcinoma in high frequency ultrasonic characteristic, and will do statistical analysis of the characteristic, explores the conventional ultrasound in thyroid papillary carcinoma early application value of diagnosis, for clinical diagnosis and treatment right to offer help.Methods: Methods a retrospective analysis of 104 cases of patients with papillary thyroid carcinoma two affiliated hospital in 2013 May to 2014 December in our school(a total of 137 cancer node) underwent high frequency ultrasound(two-dimensional ultrasound, color Doppler ultrasound) results.All patients were treated with operation, and the postoperative pathological diagnosis.Two dimensional ultrasound observation item: number of cancer nodules, site, whether the morphological rules, the boundary is clear, whether there is a complete capsule, aspect ratio, internal calcification model, internal properties, low or high echo, nodules and peripheral blood, lymph node of neck swelling.Color Doppler observation item: distribution and peripheral vascular internal nodules.According to the two dimensional ultrasound and color Doppler ultrasound of thyroid malignant nodules judgment standard recorded papillary carcinoma of thyroid nodule characteristics in high frequency ultrasound imaging manifestations,simultaneous recording of missed diagnosis cases. The diameter of grouping according to cancer nodules, divided into 3 groups. Group A: diameter﹥1cm; group B: 1cm ≥diameter﹥0.5cm; C group:diameter≤0.5cm. The recorded data were statistically analyzed after grouping.Results: 1. Diameter > 0.5 cm papillary carcinoma of thyroid nodules, the high frequency ultrasound on the characteristic of no difference, its sense of ultrasonic imaging features are: low echo microcalcification, blood flow, substantial, heterogeneity, Rago Ⅲ, aspect ratio > 1, the boundary is not clear.he proportion of their occurrence, in group A were 98.1%, 94.2%, 100%, 94.2%, 80.8%, 67.3%, 80.8%;In group B were 95.2%, 85.7%, 85.7%, 85.7%, 69.0%, 69.0%, 76.2%.While the diameter is less than or equal to 0.5cm of papillary carcinoma of thyroid nodules, in the high frequency ultrasound features with diameter more than 0.5cm above cancer nodules have obvious difference, the probability of characters of ultrasonic appear significantly reduced, only low echo, substantive and inhomogeneous three single factors are of significance, respectively 60.5%,58.1% and 60.5%.2. Except cases of misdiagnosis of papillary carcinoma of thyroid nodules, all has the performance of more than 2 characteristics of ultrasonic, and cancer nodules larger diameter, the number of features is more. In terms of grouping, diameter >0.5 cm cancer nodules at least have more than three characteristic sonographic findings at the same time, the diameter of 0.5 cm or less cancer nodules at least has two characteristic sonographic findings at the same time.This shows that, If in diameter > 0.5 cm thyroid nodules found more than 3 showed in low echo, substantive, heterogeneity, micro calcification, blood Rago level III, aspect ratio > 1, the boundary is not clear these characteristics, should consider the possibility of papillary thyroid carcinoma,if diameter less than 0.5cm nodules found more than 2 performance characteristics of ultrasound, it should consider the possibility of papillary thyroid carcinoma.3.A group, the misdiagnosis rate was 0; B group, the misdiagnosis rate was 4.8%;in C group, the misdiagnosis rate was 32.6%, when the papillary carcinoma of thyroid nodule diameter is less than or equal to 0.5cm, in the high frequency ultrasound diagnosis misdiagnosis rate was significantly higher than that of diameter >0.5cm cancer nodules.Conclusion: 1. High frequency ultrasound in the diagnosis of papillary carcinoma of thyroid nodule diameter less than 0.5cm, because the ultrasound imaging performance is not obvious, so it should be combined with other diagnostic methods, to improve the accuracy of diagnosis. It is more important for thyroid nodules less than 0.5cm in diameter should be regular clinical follow-up, early diagnosis of thyroid papillary carcinoma more effectively.2.If the diameter more than 0.5cm of thyroid nodules also found more than 3 showed low echo, substantive, heterogeneity, micro calcification, blood Rago level III, aspect ratio > 1, the boundary is not clear these characteristics, should consider the possibility of thyroid carcinoma, if d iameter less than 0.5cm nodules also found more than 2 performance characteristics of ultrasound, it should consider the possibility of thyroid carcinoma.3.Misdiagnosis of thyroid papillary carcinoma of high frequency ultrasound, cancer nodules with diameter less than 0.5cm may be the risk factors for the presence of an independent.