Objective To summarize the clinical experiences of liver transplantation.Methods Of the nine patients, four operation was standard orthotopic liver transplantation,the latter five were the piggyback liver transplantation.The immunosuppressive protocols included methylprednisolone FK506 and mycophenolatemofeti. Meanwhile intravenous antihepatitis B immunoglobulin and Lamivudine were used to prevent hepatitis B recurrence.Results All patients were cured.Conclusion Liver transplantation can be employed for liver disease both cirrhosis and carcinoma as a conventional surgery.It is an effective way for the treatment of no metastatic liver carcinoma.The immunosuppressive protocols included methylprednisolone FK506 and mycophenolatemofeti,it can prevent immune rejection.

To assess the background field removal method usually used in quantitative susceptibility mapping (QSM), and to analyze the cause of serious artifacts generated in the truncated -space division (TKD) method, this paper discusses a variety of background field removal methods and proposes an improved method to suppress the artifacts of susceptibility inversion. Firstly, we scanned phase images with the gradient echo sequence and then compared the quality and the speed of reconstructed images of sophisticated harmonic artifact reduction for phase data (SHARP), regularization enable of SHARP (RESHARP) and laplacian boundary value (LBV) methods. Secondly, we analyzed the reasons for reconstruction artifacts caused by the multiple truncations and discontinuity of the TKD method, and an improved TKD method was proposed by increasing threshold truncation range and improving data continuity. Finally, the result of susceptibility inversion from the improved and original TKD method was compared. The results show that the reconstruction of SHARP and RESHARP are very fast, but SHARP reconstruction artifacts are serious and the reconstruction precision is not high and implementation of RESHARP is complicated. The reconstruction speed of LBV method is slow, but the detail of the reconstructed image is prominent and the precision is high. In the QSM inversion methods, the reconstruction artifact of the original TKD method is serious, while the improved method obtains good artifact suppression image and good inversion result of artifact regions.
Algorithms ; Artifacts ; Brain ; Image Processing, Computer-Assisted ; Magnetic Resonance Imaging ; Phantoms, Imaging