关键词: 结直肠癌, 腹腔镜手术, 4K腹腔镜, 3D腹腔镜, 主观感受

Abstract:

Subjective perception of surgeons with 4K resolution，three-dimensional systems in laparoscopic colorectal surgery：A self-filling questionnaire survey        HONG Xi-zhou，MA Jun-jun，YU Chao-ran，et al. Department of Gastrointestinal Surgery，Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine，Shanghai 200025，China
Corresponding author：ZHENG Min-hua，E-mail：zmhtiger@yeah.net
Abstract    Objective    To compare the subjective perception of surgeons with 4K-resolution (4K) and three-dimensional (3D) systems in the laparoscopic colorectal surgery. Methods    A self-filling questionnaire survey was developed in the surgeons between August 2018 and February 2019 in Department of Gastrointestinal Surgery，Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine. The data of questionnaires from surgeons in different position ( major surgeons，first assistants，scopists) who performed laparoscopic colorectal surgeries with 4K，3D and 2D systems were collected. The questionnaires concerning asthenopia，motion sickness，topographical orientation，control coordination of visual angle，visual acuity，radiance，resolution ratio，depth description，color resolution，sense of controls，optimum viewing distance，frames and refresh rate and contrast. Results    There were 124 questionnaires screened eligibility in the survey. Among them，there were 38 questionnaires for 2D group，43 questionnaires for 3D group and 43 questionnaires for 4K group. （1）Overall comparison of the subjective scores：In the three groups，there were significant difference in control coordination of visual angle，visual acuity，resolution ratio，depth description，color resolution，optimum viewing distance，frames and refresh rate (P＜0.05). （2）Subjective scores between major surgeons：In the three groups，there were significant difference in resolution ratio，depth description，color resolution and sense of controls (P＜0.05)；the most advantages could be found on resolution ratio and color resolution in 4K group，and also could be found on depth description and sense of controls in 3D group.（3）Subjective scores between first assistants: In the three groups，there were significant difference in asthenopia，control coordination of visual angle，resolution ratio，depth description，sense of controls，frames and refresh rate (P＜0.05)；In 4K group，it showed advantages on control coordination of visual angle and resolution ratio. Motion sickness was more pronounced in 3D group，but the most advantages could be found on depth description and sense of controls. （4）Subjective scores between scopists: In the three groups，there were significant difference in visual acuity，resolution ratio，depth description，sense of controls，optimum viewing distance and contrast (P＜0.05). The most advantages could be found on visual acuity，resolution ratio and contrast in 4K group，and also could be found on depth description and sense of controls in 3D group. Conclusion    Comparing with the traditional two-dimensional system during laparoscopic colorectal surgery，4K system could apply better resolution ratio，control coordination of visual angle，visual acuity and color resolution. 3D system could apply better depth description and sense of controls.

Key words: colorectal carcinoma, laparoscopic surgery, 4K laparoscopy, 3D laparoscopy, subjective perception