Objective To evaluate maximum intensity projection(MIP) images and apparent diffusion coefficient(ADC) values of MR diffusion weighted imaging with background body signal suppression (DWIBS) on pulmonary diseases.Methods Sixty-one patients with pulmonary diseases underwent DWIBS.The findings in three dimensional(3D) MIP image were observed and the ADC values of diseased region were measured.The diagnostic value of DWIBS on pulmonary diseases was evaluated.Results Lung cancer and inflammatory disease were all demonstrated as dense intensity area on DWIBS.The mean ADC value of central lung cancer was (1.05±0.23)×10-3 mm2/s.The mean ADC value of peripheral lung cancer was(1.10±0.17)×10-3 mm2/s.The mean ADC value of the inflammatory disease was(1.69±0.29)×10-3 mm2/s.The mean ADC value had significant difierence between peripheral lung cancer and the inflammatory disease (P＜0.05). The MR sensitivity,specificity and accuracy in diagnosing the pulmonary diseases with DWIBS(86.84%,82.60%,85.24%,respectively) was higher than conventional MRI(78.94%,78.26%,and 78.68%,respectively).Conclusion DWIBS can demonstrate clearly the lesion's shape with 3D display.The quantitative measurement of ADC values iS feasible.DWIBS may be a potential diagnostic method for differentiation on pulmonary diseases.

This paper focuses on the practical necessity of discipline-integrated PBL curriculum in cultivating clinical thinking ability of college students majoring in clinical medicine. Through the teaching process of group discussion of some real and complete cases, this paper explains in detail how to cultivate medical students' clinical thinking ability by discipline-integrated PBL curriculum, discusses the implementation of ideological and political education associated with clinical medicine by heuristic teaching from close touching with clinical case and implicitly infiltration of the socialist core values such as dedication and integrity, and elaborates the humanistic quality and psychological comfort levels of medical students by being close to clinical patients. After five years of teaching practice, the teaching effect of discipline-integrated PBL curriculum has been approved by the national clinical medicine professional certification experts and praised by students. We believes that the development of discipline integrated PBL curriculum in medical college can strengthen students' problem-based autonomous learning ability, significantly improve the two-way integration ability between basic medical courses and basic medicine, and significantly build students' clinical thinking and clinical decision-making ability.

Objective:To investigate the safety and therapeutic effect of split liver transplantation (SLT) in clinical application.Methods:This is a retrospective case-series study. The clinical data of 203 consecutive SLT, 79 living donor liver transplantation (LDLT) and 1 298 whole liver transplantation (WLT) performed at the Third Affiliated Hospital of Sun Yat-sen University from July 2014 to July 2023 were retrospectively analyzed. Two hundred and three SLT liver grafts were obtained from 109 donors. One hundred and twenty-seven grafts were generated by in vitro splitting and 76 grafts were generated by in vivo splitting. There were 90 adult recipients and 113 pediatric recipients. According to time, SLT patients were divided into two groups: the early SLT group (40 cases, from July 2014 to December 2017) and the mature SLT technology group (163 cases, from January 2018 to July 2023). The survival of each group was analyzed and the main factors affecting the survival rate of SLT were analyzed. The Kaplan-Meier method and Log-rank test were used for survival analysis.Results:The cumulative survival rates at 1-, 3-, and 5-year were 74.58%, 71.47%, and 71.47% in the early SLT group, and 88.03%, 87.23%, and 87.23% in the mature SLT group, respectively. Survival rates in the mature SLT group were significantly higher than those in the early SLT group ( χ2=5.560, P=0.018). The cumulative survival rates at 1-, 3- and 5-year were 93.41%, 93.41%, 89.95% in the LDLT group and 87.38%, 81.98%, 77.04% in the WLT group, respectively. There was no significant difference among the mature SLT group, the LDLT group and the WLT group ( χ2=4.016, P=0.134). Abdominal hemorrhage, infection, primary liver graft nonfunction,and portal vein thrombosis were the main causes of early postoperative death. Conclusion:SLT can achieve results comparable to those of WLT and LDLT in mature technology liver transplant centers, but it needs to go through a certain time learning curve.

Objective:To investigate the safety and therapeutic effect of split liver transplantation (SLT) in clinical application.Methods:This is a retrospective case-series study. The clinical data of 203 consecutive SLT, 79 living donor liver transplantation (LDLT) and 1 298 whole liver transplantation (WLT) performed at the Third Affiliated Hospital of Sun Yat-sen University from July 2014 to July 2023 were retrospectively analyzed. Two hundred and three SLT liver grafts were obtained from 109 donors. One hundred and twenty-seven grafts were generated by in vitro splitting and 76 grafts were generated by in vivo splitting. There were 90 adult recipients and 113 pediatric recipients. According to time, SLT patients were divided into two groups: the early SLT group (40 cases, from July 2014 to December 2017) and the mature SLT technology group (163 cases, from January 2018 to July 2023). The survival of each group was analyzed and the main factors affecting the survival rate of SLT were analyzed. The Kaplan-Meier method and Log-rank test were used for survival analysis.Results:The cumulative survival rates at 1-, 3-, and 5-year were 74.58%, 71.47%, and 71.47% in the early SLT group, and 88.03%, 87.23%, and 87.23% in the mature SLT group, respectively. Survival rates in the mature SLT group were significantly higher than those in the early SLT group ( χ2=5.560, P=0.018). The cumulative survival rates at 1-, 3- and 5-year were 93.41%, 93.41%, 89.95% in the LDLT group and 87.38%, 81.98%, 77.04% in the WLT group, respectively. There was no significant difference among the mature SLT group, the LDLT group and the WLT group ( χ2=4.016, P=0.134). Abdominal hemorrhage, infection, primary liver graft nonfunction,and portal vein thrombosis were the main causes of early postoperative death. Conclusion:SLT can achieve results comparable to those of WLT and LDLT in mature technology liver transplant centers, but it needs to go through a certain time learning curve.