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Objective:To investigate the diagnostic efficiency of the 2020 Chinese Thyroid Imaging Reporting and Data System (C-TIRADS) and the 2017 American College of Radiology Thyroid Imaging Reporting and Data System (ACR-TIRADS) in the diagnosis of benign and malignant thyroid nodules.Methods:A retrospective analysis of the two-dimensional ultrasound image results of 324 thyroid nodules in 289 patients with thyroid nodules and thyroid nodules were performed in the physical examination of the Health Management Department of the Guangdong Second Provincial General Hospital from January 2018 to January 2019. A superficial professional doctor with a senior professional title simultaneously uses the C-TIRADS and ACR-TIRADS methods to evaluate the above nodules. The results are all pathologically referenced for the χ2 test and the receiver operating characteristic curve is drawn. Results:The sensitivity of C-TIRADS in diagnosing benign and malignant thyroid nodules was 81.90%, specificity was 97.72%, accuracy was 92.59%, negative predictive value was 91.85%, positive predictive value was 84.51%; ACR-TIRADS diagnosis The sensitivity of benign and malignant thyroid nodules was 59.05%, specificity was 99.54%, accuracy was 86.42%, negative predictive value was 83.52%, and positive predictive value was 98.41%. The area under the ROC curve was 0.958 and 0.935( Z=2.31 P=0.021). Conclusion:C-TIRADS classification based on counting method is better than ACR-TIRADS classification based on sub-method in the diagnosis of thyroid nodules. It has better efficacy and is more suitable for the current status of diagnosis and treatment of thyroid nodules in China.
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Objective:To study the effect of health management based on the transtheoretical model and stages of change on patients with diabetes mellitus complicated by obesity.Methods:A total of 122 patients with type 2 diabetes mellitus (T2DM) complicated by obesity and admitted to Guangdong Second Provincial General Hospital between January 2019 and June 2020 were recruited to participate in the study. They were divided into two equal groups at random, the observation group and the control group —with 61 patients in each group. Both groups were subjected to individualized health management based on conventional drug treatment. The control group received routine health education and psychological support, while the observation group was subjected to the transtheoretical model and stages of change interventions for six months. The independent-samples t-test was used to compare blood glucose, body weight, and self-efficacy in the two groups after interventions, and the χ 2 test or Fisher′s precise test was used to compare behavior habit compliance rates in the two groups after interventions. Results:FBG with (6.27±0.92) mmol/L and (6.58±0.91) mmol/L, 2hPG with (8.53±1.39) mmol/L and (8.53±1.39) mmol/L, and HbA1c with (6.49±0.91)% and (6.78±0.96)% in the two groups were significantly lower at six months of interventions than those before ( P<0.05), but the differences between the two groups were not statistically significant ( P>0.05). BMI, waist circumference, and body fat rate with (30.46±2.51) kg/m 2, (91.72±10.45) cm, and (34.09±3.84)% of the observation group at six months of interventions were significantly lower than those before interventions ( P<0.05), whereas there were no significant changes in the control group before and after interventions ( P>0.05). The observation group′s BMI and body fat rate were lower than those of the control group ( P<0.05). The General Self-Efficacy Scale (GSES) scores in the two groups were (31.62±2.59) points and (28.75±2.48) points, which were significantly higher than those before interventions ( P<0.05). The observation group′s GSES score was higher than that of the control group ( P<0.05). At six months of interventions, the compliance rates of diet control (92.98% and 77.97%), reasonable exercise (87.72% and 71.19%), adherence to medication (98.25% and 91.53%), quitting smoking and alcohol (94.74% and 81.36%), blood glucose monitoring (91.23% and 94.92%), and regular review (100.00% and 98.31%) were all significantly higher in the two groups than those before interventions ( P<0.05). Additionally, the compliance rates of diet control, reasonable exercise, and quitting smoking and alcohol in the observation group were higher than those of the control group ( P<0.05). Conclusion:The use of the transtheoretical model and stages of change for the self-management intervention of diabetes mellitus patients with obesity is beneficial to improve self-efficacy, behavioral habits, and weight control effectiveness.
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Objective To evaluate the value of using ultraharmonic contrast imaging(UHCI) and acoustic densitometry(AD) technique to quantify cortex blood perfusion of acute rejection in renal allograft.Methods The canine models with acute renal allograft rejection were established. The examinations of renal allograft were performed by intravenous contrast ultrasound and AD technique on the days 1,3,5,7,9,11 after transplantation,some parameters related to perfusion such as peak intensity(PI),the area under the curve(AUC),the half time of descending(HT) and the mean transit time(MTT) of renal cortex were measured,and the graft biopsies were done simultaneously.Results The cortex of renal allograft with acute rejection showed nonenhancing defects after contrast agent injection. From 5 to 11 days after transplantation,the PI,AUC,HT,MTT of renal cortex were increasingly decreased,and the 50% wash-out slope was increasingly increased; furthermore,there were significant differences between those of the first day of post-operation(P