Conventional Ultrasound Combined With Ultrasound Elastography In The Differential Diagnosis Of GD And HT

Objective:Explore conventional ultrasound combined with clinical value of ultrasound elastography in the differential diagnosis of Graves’ disease (Graves’ Disease, GD) and Hashimoto’s thyroiditis (Hashimoto’s thyroiditis, HT).Methods:The control group of34patients, GD27patients (Ⅰ group), HT group of30patients (Ⅱ group). The conventional the ultrasound observation thyroid size, shape, internal echo characteristics, and to measure the size and thickness of the isthmus of thyroid Futaba; CDFI observe the condition of the blood flow in the thyroid parenchyma, measuring thyroid artery diameter; PW measuring thyroid artery peak systolic velocity (PSV), end diastolic velocity (EDV) and resistance index (RI); tissue elasticity map hardness the ultrasound elastography observed ROI performance.Results:(1) Thyroid around the diameter and thickness of the isthmus in the case group (GD, HT group) compared with the normal group, the difference was statistically significant (P<0.001), the GD group and the HT group difference was not statistically significant(P>0.05).(2) The substance of the thyroid gland echo normal group classification mainly to grade Ⅰ GD and HT group Ⅱ grade, Ⅲ GD group and the HT group difference was not statistically significant (P>0.05); hypoechoic scattered distribution GD group main HT group diffuse distribution, the difference was statistically significant; the HT group thyroid parenchyma echo grid-like hyperechoic GD group was significantly higher than that, the difference was statistically significant (P<0.001).(3) Limit the the thyroid normal group of blood flow to the surrounding parenchymal blood flow signals less GD and HT group substance of blood flow signals increased significantly.(4) GD group HT group bilateral thyroid artery diameter widened compared with normal group difference was statistically significant (P<0.001), the the GD group with HT group showed no significant difference; GD group, HT group double side thyroid artery PSV was significantly higher with the normal group, the difference was statistically significant (P<0.001); comparison of the three sets of RI of the GD group, HT group and the normal group, the difference was not statistically significant (P>0.05).(5) Elastography classification normal grade Ⅰ GD group Ⅱgrade, the HT group Ⅲgrade, pairwise comparison, the difference was statistically significant (P<0.001). Conclusions:The thyroid two-dimensional sonographic hypoechoic Mode of GD and HT do not have a certain sense, the anteroposterior diameter and thickness of the isthmus of thyroid bilateral Ye can not serve as indicators of the diagnosis of GD and HT; thyroid2D sonogram in real terms within the grid-likeseparate the strong echoes of great value to the differential diagnosis of GD and HT; thyroid artery PSV GD and HT identification; ultrasound elastography GD and HT identify.