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基于深度学习构建微创肝切除术关键解剖结构识别模型的应用价值
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作者 陶海粟 黎柏宏 +4 位作者 曾小军 郭康炜 唐玄霜 钱银玲 杨剑 《中华消化外科杂志》 CAS CSCD 北大核心 2024年第4期590-595,共6页
目的 探讨基于深度学习构建微创肝切除术关键解剖结构识别模型的应用价值.方法 采用回顾性描述性研究方法.收集2019年1月至2023年4月在南方医科大学珠江医院保存完整的31个腹腔镜肝左外叶切除术视频资料.由2位肝脏外科医师筛选出包含肝... 目的 探讨基于深度学习构建微创肝切除术关键解剖结构识别模型的应用价值.方法 采用回顾性描述性研究方法.收集2019年1月至2023年4月在南方医科大学珠江医院保存完整的31个腹腔镜肝左外叶切除术视频资料.由2位肝脏外科医师筛选出包含肝左外叶肝蒂、肝左静脉的视频片段,对视频进行质控、筛选、抽帧后,标注图像中的关键解剖结构.所有图像经过预处理后,输送至DeepLab v3+神经网络框架进行模型训练.观察指标:(1)视频标注及分类情况.(2)人工智能解剖识别模型测试结果.正态分布的计量资料以(-x)±s表示,计数资料以绝对数表示.结果 (1)视频标注及分类情况.31个视频共标注4 130帧图像,其中仅有肝左外叶肝蒂的标注图像2083帧,仅有肝左静脉的标注图像1 578帧,同时有肝左外叶肝蒂和肝左静脉的标注图像469帧.(2)人工智能解剖识别模型测试结果.4种场景(干净场景、血渍场景、器械部分遮挡场景、暴露面积小的场景)下,模型成功识别肝左外叶肝蒂或肝左静脉.模型对以上视频图像的解剖识别速度均>13帧/s.模型在对仅有肝左外叶肝蒂的图像进行解剖识别时,Dice系数、交并比、准确度、灵敏度、特异度分别为0.710± 0.110、0.560±0.120、0.980±0.010、0.640±0.030、0.980±0.010;在对仅有肝左静脉的图像进行解剖识别时,上述指标分别为 0.670±0.180、0.530±0.200、0.980±0.010、0.600±0.040、0.990±0.010;在对同时有肝左外叶肝蒂和肝左静脉的图像进行解剖识别时,上述指标分别为0.580±0.180、0.430±0.190、0.980± 0.010、0.580±0.020、0.990±0.010.结论 基于深度学习构建微创肝切除术关键解剖结构识别模型可用于识别肝脏肝蒂和静脉结构. 展开更多
关键词 深度学习 微创肝切除术 解剖结构 计算机视觉 图像分割
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Comparison of laparoscopic hepatectomy,percutaneous radiofrequency ablation and open hepatectomy in the treatment of small hepatocellular carcinoma 被引量:8
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作者 Chong LAI Ren-an JIN +1 位作者 Xiao LIANG Xiu-jun CAI 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2016年第3期236-246,共11页
Objective: Three mainstream techniques-laparoscopic hepatectomy (LH), percutaneous radiofrequency ablation (pRFA), and open hepatectomy (OH)--were compared in this study, in terms of their efficacies in the tre... Objective: Three mainstream techniques-laparoscopic hepatectomy (LH), percutaneous radiofrequency ablation (pRFA), and open hepatectomy (OH)--were compared in this study, in terms of their efficacies in the treat- ment of small hepatocellular carcinoma (HCC). Methods: A comparative study was performed within a total of 94 patients diagnosed with small HCC in our hospital from 2005 to 2010, who underwent LH (28), RFA (33), or OH (33). They had either a single tumor lesion of less than 5 cm or up to three nodules with diameters of less than 3 cm each. Outcomes were carefully evaluated throughout a 3-year follow-up interval and statistically interpreted. Results: The pRFA group had a significantly lower disease-free survival rate compared with the two surgical groups (P=0.001) and significantly shorter overall survival (P=-0.005), while the LH group and the OH group had no difference in survival results. For patients younger than 60 years old, surgical approaches offered a better long-term overall survival prognosis (P=0.008). There were no statistically significant differences among the three groups in overall survival for elderly patients (P=0.104). Conclusions: Among patients with small HCC, LH may provide better curative effects than pRFA without increasing complication rates, pRFA leads to faster recurrence than surgical resections. LH has similar therapeutic effects to OH and causes less trauma. For patients younger than 60 years old, LH may be the best curative treatment. Elderly patients may choose either surgery or pRFA. 展开更多
关键词 Hepatocellular carcinoma Laparoscopic hepatectomy Minimally invasive techniques Open hepatectomy Percutaneous radiofrequency ablation
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