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Japanese

Thoracoscopic Segmentectomy Using Three-dimensional Image Simulation of the Pulmonary Artery Perfusion Area and Indocyanine Green (ICG) Intravenous Injection Method Takuya Nagashima 1 , Hiroyuki Ito 1 , Hiroyuki Adachi 1 1Department of Thoracic Surgery, Kanagawa Cancer Center Keyword: lung segmentectomy , video-assisted thoracic surgery (VATS) , indocyanine green (ICG) , 3D pp.54-58
Published Date 2023/1/1
DOI https://doi.org/10.15106/j_kyobu76_54
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Purpose:When performing segmentectomy, we aim to keep adequate distance from the tumor using three-dimensional (3D) images of the pulmonary artery perfusion area and the indocyanine green (ICG) injection method. The effectiveness and improvement of this method were examined.

Patients and method:We retrospectively investigated 50 consecutive patients who underwent segmentectomy with this method. In simulation, we measured the predicted margin distance (PMD) on a 3D image. Then, we measured the actual margin distance (AMD) on resected specimens fixed in formalin. We compared these two distances and evaluated factors influencing shorter AMD.

Results:The median AMD was 1.7 cm, and there was no positive margin case. The median ratio of AMD/PMD was 0.73. In multivariate analysis, shorter PMD and no resection of subsegment bronchi next to the tumor were significant factors associated with shorter AMD (p<0.001, p=0.014).

Conclusions:Our method was effective for segmentectomy. For adequate AMD, a longer PMD in simulation and subsegmental bronchi resection next to the tumor should be considered.


© Nankodo Co., Ltd., 2023

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電子版ISSN 2432-9436 印刷版ISSN 0021-5252 南江堂

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