Objective To explore the value of virtual touch tissue quantification(VTQ) on the early diagnosis of gouty nephropathy.Methods 180 healthy controls and 109 gout patients including 57 cases with normal renal function,and 52 cases with gouty nephropathy were measured by VTQ in this study.The shear wave velocity (SWV) of renal cortex,renal medulla and renal sinus were measured using virtual touch tissue quantification(VTQ).The recorded SWV value was compared.Results In all groups,the SWV of renal cortex was the highest with significant difference (P ＜0.01).The SWV of renal cortex in gouty nephropathy group was higher than those in control group (t =0.342,P =0.026).The SWV of renal medulla and sinus in gout with normal renal function group and gouty nephropathy group were higher than those in control group,respectively (gout with normal renal function group:t =-0.311,-0.628; P =0.012,0.000;gouty nephropathy group:t =-0.369,-0.701 ; P =0.000,0.000).The SWV of renal cortex,medulla and sinus had no significant difference between gout patients with normal renal function and gouty nephropathy patients(t =0.117,-0.059,-0.073; P =0.232,0.575,0.523).Conclusions The VTQ technology could quantitatively evaluate tissue elasticity of the gout patients and provide evidence for the early diagnosis of gouty nephropathy.

Objective To investigate the teaching effect of standardized patient teaching model in the practice teaching of emergency medicine. Methods A total of 50 standardized training residents were randomly divided into experimental group and control group during the process of medical history collection and special physical examination. The residents in the experimental group were taught with the standardized patient teaching model, and those in the control group were taught with the model of traditional theory teaching followed by clinical practice. Assessment was performed after the course was completed. Results Compared with the control group, the experimental group had significantly higher scores of medical history collection and physical examination (P<0.05). The experimental group also had significantly higher scores of communication and humanistic concern than the control group (P<0.05). The questionnaire survey showed that the medical students preferred the standardized patient teaching model, and they thought such model could improve doctor-patient communication ability and clinical practice ( P<0 . 05 ) . Conclusion The standardized patient teaching model can significantly improve the effect of practice teaching of emergency medicine and plays an important role in improving the clinical skills of medical students in emergency.