Video-assisted thoracoscopic surgery using mobile computed tomography: New method for locating of small lung nodules

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Abstract

Background: The O-arm is an intraoperative imaging device that can provide computed tomography images. Surgery for small lung tumors was performed based on intraoperative computed tomography images obtained using the O-arm. This study evaluated the usefulness of the O-arm in thoracic surgery.Methods: From July 2013 to November 2013, 10 patients with small lung nodules or ground glass nodules underwent video-assisted thoracoscopic surgery using the O-arm. A needle was placed on the visceral pleura near the nodules. After the lung was re-expanded, intraoperative computed tomography was performed using the O-arm. Then, the positional relationship between the needle marking and the tumor was recognized based on the intraoperative computed tomography images, and lung resection was performed.Results: In 9 patients, the tumor could be seen on intraoperative computed tomography images using the O-arm. In 1 patient with a ground glass nodule, the lesion could not be seen, but its location could be inferred by comparison between preoperative and intraoperative computed tomography images. In only 1 patient with a ground glass nodule, a pathological complete resection was not performed. There were no complications related to the use of the O-arm.Conclusions: The O-arm may be an additional tool to facilitate intraoperative localization and surgical resection of non-palpable lung lesions. © 2014 Ohtaka et al.; licensee BioMed Central Ltd.

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Ohtaka, K., Takahashi, Y., Kaga, K., Senmaru, N., Kotani, Y., & Matsui, Y. (2014). Video-assisted thoracoscopic surgery using mobile computed tomography: New method for locating of small lung nodules. Journal of Cardiothoracic Surgery, 9(1). https://doi.org/10.1186/1749-8090-9-110

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