Objectives: The aim of this study was to demonstrate the feasibility and efficacy of a novel simulation software called, virtual segmentectomy.
Methods: We developed the segmentectomy simulation system, which was programmed to analyse the detailed 3D bronchovascular structure and to predict the appropriate segmental surface and surgical margin, based on lung modelling from CT images.
Results: We have attempted this novel technique for 3 cases of pulmonary metastases and 1 case of multiple lung cancer. For validation, the predicted resection margin was compared with the actual resected specimen. The surgical surface, as estimated by the simulation, was compared with the surface of the specimen and a surgical video. To test its feasibility, the operation time, blood loss, durations of chest tube placement and hospitalization as well as pathological findings were assessed.
Conclusions: Preoperative simulation and intraoperative guidance by virtual segmentectomy could contribute significantly to determining the most appropriate anatomical segmentectomy and curative resection.
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http://dx.doi.org/10.1093/icvts/ivt120 | DOI Listing |
JTCVS Tech
December 2024
Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Objective: We developed a technique to determine deep surgical margins using radiofrequency identification markers. This study assessed the feasibility of this technique during extended segmentectomy of intersegmental lesions.
Methods: A single-center, prospective, single-arm study was performed from 2020 to 2023.
J Thorac Dis
October 2024
Nanjing Nuoyuan Medical Devices Co., Ltd., Nanjing, China.
Background And Objective: The early detection and early treatment of high-risk pulmonary nodules directly affect the long-term survival rate of patients. However, conventional nodule localization methods, such as hook-wire, technetium-99m, and methylene blue are associated with issues such as a high-frequency of complications, low patient tolerance, serious side effects, and inability to identify pigmented lungs. For patients who require segmentectomy, there is often a lack of effective path planning, resulting in insufficient resection margins or excessive loss of lung function.
View Article and Find Full Text PDFSurg Endosc
September 2024
First Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto, Japan.
Background: The use of sublobar resection has increased with advances in imaging technologies. However, it is difficult for thoracic surgeons to identify small lung tumours intraoperatively. Radiofrequency identification (RFID) lung-marking systems are useful for overcoming this difficulty; however, accurate placement is essential for maximum effectiveness.
View Article and Find Full Text PDFAnn Surg Oncol
October 2024
Department of Surgical Oncology, Centre Léon Bérard, Lyon, France.
Introduction: Minimally invasive resection of segment VIII is a technically challenging procedure, made even more challenging when the resection is extended to segment IV and/or segment VII. Parenchymal-sparing resections are frequently used in the management of liver metastases but expose to the risk of R1 resection, especially with a minimally invasive approach. Preoperative surgical planning with 3D reconstruction and intraoperative guidance with hepatic vein is helpful for laparoscopic oncological liver resection.
View Article and Find Full Text PDFHeliyon
June 2024
Université Paris Cité, CNRS, MAP5, 44, Rue des Saint Pères, 75006, Paris, France.
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