Measurement and Analysis of Lobar Lung Deformation After a Change of Patient Position During Video-Assisted Thoracoscopic Surgery - Archive ouverte HAL Access content directly
Journal Articles IEEE Transactions on Biomedical Engineering Year : 2023

Measurement and Analysis of Lobar Lung Deformation After a Change of Patient Position During Video-Assisted Thoracoscopic Surgery

Abstract

Video-assisted thoracoscopic surgery (VATS) is a minimally invasive surgical technique for the diagnosis and treatment of earlystage lung cancer. During VATS, large lung deformation occurs as a result of a change of patient position and a pneumothorax (lung deflation), which hinders the intraoperative localization of pulmonary nodules. Modeling lung deformation during VATS for surgical navigation is desirable, but the mechanisms causing such deformation are yet not well-understood. In this study, we estimate, quantify and analyze the lung deformation occurring after a change of patient position during VATS. We used deformable image registration to estimate the lung deformation between a preoperative CT (in supine position) and an intraoperative CBCT (in lateral decubitus position) of six VATS clinical cases. We accounted for sliding motion between lobes and against the thoracic wall and obtained consistently low average target registration errors (under 1 mm). We observed large lung displacement (up to 40 mm); considerable sliding motion between lobes and against the thoracic wall (up to 30 mm); and localized volume changes indicating deformation. These findings demonstrate the complexity of the change of patient position phenomenon, which should necessarily be taken into account to model lung deformation for intraoperative guidance during VATS.
Fichier principal
Vignette du fichier
ChangePoseDeformationVats.pdf (8.8 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-03807037 , version 1 (08-10-2022)

Identifiers

Cite

Pablo Alvarez, Matthieu Chabanas, Stéphane Sikora, Simon Rouzé, Yohan Payan, et al.. Measurement and Analysis of Lobar Lung Deformation After a Change of Patient Position During Video-Assisted Thoracoscopic Surgery. IEEE Transactions on Biomedical Engineering, 2023, 70 (3), pp.931-940. ⟨10.1109/tbme.2022.3205458⟩. ⟨hal-03807037⟩
1376 View
32 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More