ArticleAnnals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia2025
The Positioning Method of Pulmonary Nodules in Thoracoscopic Surgery Based on CT Simulation Positioning System for Radiotherapy.
Article in Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe application of wedge resection in thoracoscopic surgery is becoming more and more widely prevalent. However, achieving precise intraoperative positioning of the pulmonary nodules still poses challenges. This study proposed a method for surface positioning using a computed tomography (CT) simulation positioning system in the radiation physics room.
methodsAfter screening patients, the level of nodules was located under the CT simulation positioning system, and the pleural projection point of the nodule and the closest surface puncture point from this point to the body surface were determined by the laser positioning system. During the operation, a needle was inserted at a predetermined angle at the puncture point, leaving a pinhole in the visceral pleura. Finally, the distance between the true pleural projection point of the nodule and the pinhole was measured on the specimen.
resultsThe success rate of our positioning method was 97.2%. The average distance between the puncture pinhole location and the actual pleural projection point of the nodule was 8.1 mm. No related complications occurred during the perioperative period.
conclusionThe new method of preoperative surface positioning and intraoperative lung positioning through puncture has a high success rate, good positioning accuracy, and good safety, which is worthy of clinical application.
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