Department of Cardiothoracic Surgery, Thoraxcenter, Erasmus MC, Rotterdam, Netherlands.
Department of Pediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands.
Eur J Cardiothorac Surg. 2022 Dec 2;63(1). doi: 10.1093/ejcts/ezad014.
OBJECTIVES: When surgical resection is indicated for a congenital lung abnormality (CLA), lobectomy is often preferred over segmentectomy, mostly because the latter is associated with more residual disease. Presumably, this occurs in children because sublobar surgery often does not adhere to anatomical borders (wedge resection instead of segmentectomy), thus increasing the risk of residual disease. This study investigated the feasibility of identifying eligible cases for anatomical segmentectomy by combining virtual reality (VR) and artificial intelligence (AI). METHODS: Semi-automated segmentation of bronchovascular structures and lesions were visualized with VR and AI technology. Two specialists independently evaluated via a questionnaire the informative value of regular computed tomography versus three-dimensional (3D) VR images. RESULTS: Five asymptomatic, non-operated cases were selected. Bronchovascular segmentation, volume calculation and image visualization in the VR environment were successful in all cases. Based on the computed tomography images, assignment of the CLA lesion to specific lung segments matched between the consulted specialists in only 1 out of the cases. Based on the three 3D VR images, however, the localization matched in 3 of the 5 cases. If the patients would have been operated, adding the 3D VR tool to the preoperative workup would have resulted in changing the surgical strategy (i.e. lobectomy versus segmentectomy) in 4 cases. CONCLUSIONS: This study demonstrated the technical feasibility of a hybridized AI-VR visualization of segment-level lung anatomy in patients with CLA. Further exploration of the value of 3D VR in identifying eligible cases for anatomical segmentectomy is therefore warranted.
目的:当先天性肺异常(CLA)需要手术切除时,肺叶切除术通常优于肺段切除术,主要是因为后者与更多的残留疾病相关。据推测,这在儿童中发生是因为亚肺叶手术通常不符合解剖边界(楔形切除术而不是肺段切除术),从而增加了残留疾病的风险。本研究通过虚拟现实(VR)和人工智能(AI)技术,探讨了通过联合使用这两种技术来确定适合解剖性肺段切除术的病例的可行性。
方法:使用 VR 和 AI 技术对支气管血管结构和病变进行半自动分割。两名专家通过问卷分别独立评估常规计算机断层扫描与三维(3D)VR 图像的信息价值。
结果:选择了 5 例无症状、未手术的病例。在所有病例中,支气管血管分割、体积计算和 VR 环境中的图像可视化均成功完成。根据计算机断层扫描图像,CLA 病变在特定肺段的分配仅在 1 例病例中得到了咨询专家的一致认可。然而,基于 3 个 3D VR 图像,5 例中的 3 例定位相匹配。如果对这些患者进行手术,如果在术前评估中加入 3D VR 工具,将导致 4 例患者的手术策略发生改变(即肺叶切除术与肺段切除术)。
结论:本研究证明了在 CLA 患者中使用 AI-VR 混合技术可视化段级肺解剖的技术可行性。因此,进一步探索 3D VR 在确定适合解剖性肺段切除术的病例中的价值是有必要的。
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