The medical metaverse is a combination of medicine and other cutting-edge technologies such as computer and information ones. In the medical metaverse, medical knowledge in the real world will be transformed into a digital form, so that activities concerning diagnosis, treatment, education and clinical practice can be carried out in a virtual environment. Based on the latest research advances at home and abroad, this review expounds on the medical metaverse from the aspects of supporting technologies, applications in clinic and medical education, current deficiencies and future development.

Vascular interventional surgery is an important means to treat cardiovascular and cerebrovascular diseases, but the particularity of its working environment will bring greater radiation threat to doctors. Vascular interventional surgery robots can effectively improve the working environment of doctors and can provide more stable operations, improve the success rate of surgery. This study mainly introduces the current research status, key technologies, and future application of vascular interventional surgical robots.
Robotics ; Vascular Surgical Procedures/methods* ; Heart ; Technology

The precision of optical positioning system is one of the most important factors which affects the precision of navigation guided surgery. In this study, an efficient and low-cost tool and its algorithm were proposed to evaluate the accuracy of optical positioning system based on the ablation scenario of liver cancer, and two validation experiments were designed. Experimental results show that the tool and its algorithm can evaluate the accuracy of the current positioning system accurately and efficiently.
Algorithms ; Humans ; Liver Neoplasms/surgery* ; Optical Devices ; Surgery, Computer-Assisted/methods*

Objective: To observe the clinical therapeutic effect of Tang Shen Ning(TSN,a prescription of traditional Chinese medicine)for curing the early stage of diabetic nephropathy(DN).Methods: Adopting random and double-blind controlled trial methods,several indexes were observed in terms of uric micro-amount albumin excretion rate,creatinine clearance,hemorheology and platelet function et al.Results: TSN could significantly reduce urinary albumin,glomerulus's hyper-filtration,improve blood stream transform and inhibit platelet aggregation.Conclusion: TSN could protect renal functions during the early stage of DN.

Aim To study the effect of Taurochenodeoxycholic Acid (TCDCA) on immunologic cell in vitro and in vivo in mice. Methods Five doses were used , including 0.043, 0.065, 0.1, 0.153, 0.189 g?kg-1 in vivo and 0.01, 0.05, 0.1, 1, 10 mg?L-1 in vitro. Effects of TCDCA on peritoneal macrophage in mouse in vitro,splenic lymphocyte, normal organism, immunologic functional inhibiting model and nerve-endocrine-immunoregulation system were investigated. Results TCDCA had the obvious immunoregulation effect on normal organisms in mouse. 0.1 g?kg-1 TCDCA had the obvious anastated effects on the immunological inhibiting model made up by the cyclosporine A and cyclophosphamide. TCDCA may affect the peritoneal macrophage and splenic lymphocyte in vitro directly, meanwhile two kinds of immunological cells showed the obvious immunoregulation effects on the whole. 0.1 g?kg-1 TCDCA can increase the hydrocortisone contents of the nerve-endocrine-immunoregulation system in mouse most remarkably. Conclusion TCDCA had the adjustment effect on the immunoregulation function in mouse.