2023 World Conference on Lung Cancer (Posters)-EP07.02. A Three-Dimensional Computed Tomography Analysis of Residual Lung Volume Changes after Segmentectomy for Non-small-Cell Lung Cancer

EP07.02. A Three-Dimensional Computed Tomography Analysis of Residual Lung Volume Changes after Segmentectomy for Non-small-Cell Lung Cancer - PDF(Abstract)

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This study analyzed the changes in residual lung volume after segmentectomy for non-small cell lung cancer using three-dimensional computed tomography (3D-CT) analysis. The researchers included 58 cases of segmentectomy as the initial surgery for primary lung cancer. They measured volumes preoperatively and one year postoperatively using CT imaging and calculated the rate of increase in postoperative lung volume. The patients were divided into a compensated group with a postoperative total lung volume of 100% and an uncompensated group.<br /><br />The results showed that there was no significant decrease in volume in any of the residual segments compared to the preoperative volume. The compensated group, which had a postoperative total lung volume of 100%, was more likely to have undergone thoracoscopic surgery, division of the intersegmental plane by electrocautery, and basal segmentectomy. The postoperative lung volume increase rate was compared between lobes including the resected segment, total volume of ipsilateral lobes excluding the resected segments, and total volume of the contralateral lung. There was no significant difference in lobes including the resected segment. However, there was a significantly increased postoperative volume in right S6 segmentectomy and right basal segmentectomy when comparing the total volume of ipsilateral lobes excluding the resected segments. Additionally, the postoperative volume was significantly increased in right S6 segmentectomy when comparing the contralateral lungs.<br /><br />In conclusion, the study found that there was no significant decrease in volume in any of the residual segments after segmentectomy. Compensatory volume changes in lobes other than the residual segment were also observed. This analysis focused on segmentectomy in the lower lobes, but the findings may have implications for other types of lung cancer surgeries as well.

Asset Subtitle

Miyuki Abe

Meta Tag

Speaker Miyuki Abe

Topic Early-Stage NSCLC: New Technology & Innovations

Keywords

residual lung volume

segmentectomy

non-small cell lung cancer

3D-CT analysis

postoperative lung volume

compensated group

ipsilateral lobes

contralateral lung

compensatory volume changes

lung cancer surgeries