ObjectiveTo explore the value and role of post-processing techniques such as 3D reconstruction in the online education mode in neurosurgery undergraduate clinical probation teaching.MethodsA retrospective analysis method was used to collect 120 clinical 5-year medical students who were trained in neurosurgery at West China Hospital of Sichuan University from January 2019 to May 2020, including 40 students receiving traditional imaging materials offline (control group 1), 40 students being taught on image post-processing technology offline (control group 2), and 40 students being taught on-line image post-processing technology during the novel coronavirus epidemic (observational group). The students’ scores of departmental rotation examination and feedback survey results on teaching satisfaction were collected, and multiple comparison was conducted between the observational group and the two control groups respectively.ResultIn the control group 1, the control group 2, and the observational group, the theoretical test scores were 36.80±3.22, 38.17±2.61, and 38.97±2.79, respectively; the case analysis scores were 37.05±2.01, 38.40±2.62, and 39.25±2.88, respectively; the total scores were 73.85±5.06, 76.57±4.29, and 78.10±4.53, respectively; the scores of interest in teaching were 84.47±3.71, 86.05±2.87, and 86.82±2.60, respectively; the scores of mastery of knowledge were 82.85±4.39, 84.90±2.72, and 85.78±2.36, respectively; and the scores of overall satisfaction with teaching were 84.17±3.45, 85.97±2.64, and 86.37±2.59, respectively. The differences among the three groups were all statistically significant (P<0.05). The observational group differed significantly from the control group 1 in all the above scores (P<0.05), while did not differed from the control group 2 in any of the above scores (P>0.05).ConclusionsIn neurosurgery internship activities, the online application of image post-processing techniques such as 3D reconstruction will help students establish 3D spatial concepts, better understand the brain anatomy, and improve students’ academic performance and acceptance.
目的：采用高分辨多排螺旋CT研究鼻中隔和中鼻甲解剖變異，并評價它們對前組鼻副竇引流通道的影響。方法：回顧分析60例行鼻腔和副鼻竇高分辨多排螺旋CT檢查患者的圖像資料。 其中男35例，女25例，平均年齡42歲。所有受試者均采用16排螺旋CT機行高分辨容積掃描，層面從硬腭至額竇上緣，準直0.75~1 mm，橫斷、冠狀和矢狀重建，層厚及層距均為1 mm。分別觀察和統計鼻中隔和中鼻甲解剖變異的類型和發生率，并評價其與前組鼻副竇引流通道的關系。結果：60例中，共發現鼻中隔變異45例(75%)，其中鼻隔偏曲45例(單向偏曲31例，雙向偏曲14例)；犁骨軟骨結合部畸形5例(肥大2例，脫位3例)；鼻隔刺16例。中鼻甲變異共43例(71.7%)，其中反曲15例；氣化9例；雙側不對稱20例(46.5%)。不對稱中鼻甲中，增大一側多見于鼻隔偏移方向的對側，多數伴有不同程度的鉤突移位和篩漏斗或鼻道狹窄。結論：鼻腔和中鼻甲不對稱與鼻中隔偏曲關系密切，后者是導致前組鼻副竇引流通道中的關鍵部位--中鼻道和篩漏斗狹窄的重要原因。