Study on the application value of shear wave elastography technology in the diagnosis of parotid gland tumors
Objective To explore the application value of shear wave elastrography(SWE)in the differential diagnosis of parotid gland pleomorphic adenoma and monomorphic adenoma.Methods From September 2020 to November 2021,77 patients(83 parotid tumors)with pathological results obtained from surgical resection or pathological biopsy of parotid tumors in oral and maxillofacial surgery in our hospital were selected.Of these patients,43(51.80％)were pleomorphic adenoma(PA)and 40(48.20％)were monomorphic adenoma(MA).All patients with parotid gland tumors were examined by conventional ultrasound and SWE before surgery or puncture biopsy.The corresponding ultrasound characteristics and Young's modulus were evaluated.ROC curves were drawn.The sensitivity and specificity of conventional ultrasound and SWE in diagnosing parotid gland tumors were calculated.Their diagnostic value was analyzed.Results The blood flow signal grade of PA was lower than that of MA,and cystic areas were more likely to be found in MA.There is a statistically significant difference in the blood flow signal grade and cystic area be-tween the two types of tumor(P＜0.05).PA had higher elastic hardness values han MA,and the difference between the maximum and average values of SWE Young's modulus was statistically significant(P＜0.05).However,the minimum value of Young's modulus between PA and MA was not statistically significant(P＞0.05).The combined diagnosis of parotid gland PA by conventional ultrasound and SWE technology had a sensitivity of 88.4％and a specificity of 77.5％,which is higher than the two alone.Conclusions The conventional ultrasound combined with SWE technique has higher application value in the differential diagnosis of PA and MA in parotid gland.
万方数据
维普
