Objective To investigate the association between the RoSCo scoring system and the postopera tive complications of laparoscopic partial nephrectomy.Methods The clinical data of 127 patients with laparoscopic partial nephrectomy in our hospital from 2010 to 2015 were retrospectively analyzed.By studying all patients' preoperative clinical data,we give all the patients the RoSCo score,then divided all the patients into the RoSCo low group (3-4),RoSCo moderate group (5-6),RoSCo high group (7-8).Respectively study the association between the RoSCo score and Clavein score,operative time,intraoperative blood loss,warm ischemia time and length of hospital stay after laparoscopic partial nephrectomy.Results The RoSCo score was associated with postoperative complications of laparoscopic partial nephrectomy (P ＜ 0.05) and was more accurate than the RENAL score alone.There were significant differences in bleeding,warm ischemia time,hospital stay and operation time between the low,middle and high groups of RoSCo (P ＜ 0.05).Conclusion The RoSCo scoring system can be used to assess the complications of laparoscopic partial nephrectomy.

Based on the current situation of pediatric surgery practice teaching in Qilu Hospital of Shandong University, 10 mind maps of common clinical diseases made by Imindmap 11 were applied to the practice teaching and teaching assessment through WeChat public platform. Mind map not only revealed the relationship between related disciplines and reappeared the clinical thinking process, but also greatly improved the enthusiasm and efficiency of interns' learning, and trained their innovative spirit and practical ability. At the same time, as a formative evaluation method, mind map facilitates teachers to evaluate and improves teaching activities. What’s more, it effectively improves the quality of teaching, and is worth promoting in clinical teaching.

Objective:To investigate the reproducibility of whole-heart and volume-targeted balanced steady-state free precession (bSSFP) non-contrast MR coronary angiography (CMRA) for displaying coronary trunks.Methods:From February and September 2021, the whole-heart and volume-targeted CMRA examinations of 58 volunteers were prospectively and consecutively acquired in The First Affiliated Hospital of Fujian Medical University. Each volunteer underwent CMRA twice within a week. The subjective score, vessel-to-myocardium ratio (VMR), vessel-to-fat ratio (VFR), signal-noise ratio (SNR), and coronary corresponding coordinate was analyzed and extracted. Inter-observer, intra-observer and inter-scan consistency were evaluated by intraclass correlation coefficient (ICC), Bland-Altman analysis, Hausdorff Distance (HD), and Dice Similarity Coefficient (DSC).Results:The inter-observer and intra-observer consistencies of subjective scores, VMR, and VFR of the whole-heart and volume-targeted coronary artery images were excellent (ICC>0.76, P<0.001). The inter-scan VFR consistencies of RCA, LM, and LCX of whole-heart coronary scans were moderate (ICC=0.235, 0.264, 0.380, all P<0.05), while the consistencies of the remaining variables were good, (all ICCs>0.49, P<0.001). Bland-Altman method showed that most VMR, VFR, and SNR of two CMRA imaging were within the 95% limits of agreement. Whole-heart CMRA inter-and intra-observer mean HD was 1.79 (1.35, 3.25), 1.68 (1.09, 4.10), mean DSC was 0.96±0.04, 0.97±0.03. Volume-targeted CMRA inter-and intra-observer mean HD were 1.74 (1.63, 3.11), 1.74 (1.63, 1.98), and the mean DSC was 0.91±0.10, 0.95±0.05. The subjective score of raw images of the total artery trunk of volume-targeted CMRA [3.86 (3.68,4.00) vs. 3.80 (3.58,3.96) ], VMR [1.45 (1.27,1.58) vs. 1.22 (1.13,1.41) ], and VFR [7.36 (6.44,8.60) vs. 5.97 (4.97,6.64) ] were better than those of whole-heart CMRA (all P<0.05). The overall subjective score of whole-heart CMRA coronary trunk curved projection reformation was better than volume-targeted CMRA [3.75 (3.57, 3.88) vs. 3.63 (3.44, 3.71)] ( P<0.001). Conclusions:Whole-heart and volume-targeted bSSFP non-contrast CMRA represent good reproducibility and image quality in the main coronary artery of healthy volunteers. Both of the two methods have their advantages and complement each other.