Calculation of Lung Cancer Volume of Target Based on Thorax Computed Tomography Images using Active Contour Segmentation Method for Treatment Planning System

[摘要] In this research, calculation process of the lung cancer volume of target based on computed tomography (CT) thorax images was done. Volume of the target calculation was done in purpose to treatment planning system in radiotherapy. The calculation of the target volume consists of gross tumor volume (GTV), clinical target volume (CTV), planning target volume (PTV) and organs at risk (OAR). The calculation of the target volume was done by adding the target area on each slices and then multiply the result with the slice thickness. Calculations of area using of digital image processing techniques with active contour segmentation method. This segmentation for contouring to obtain the target volume. The calculation of volume produced on each of the targets is 577.2 cm3for GTV, 769.9 cm3for CTV, 877.8 cm3for PTV, 618.7 cm3for OAR 1, 1,162 cm3for OAR 2 right, and 1,597 cm3for OAR 2 left. These values indicate that the image processing techniques developed can be implemented to calculate the lung cancer target volume based on CT thorax images. This research expected to help doctors and medical physicists in determining and contouring the target volume quickly and precisely.

[发布机构] Physics Department, Diponegoro University, Indonesia^1

[效力级别] 教育 [学科分类] 发展心理学和教育心理学

[关键词] Active contour segmentation;Calculation process;Clinical target volumes;Computed tomography images;Digital image processing technique;Image processing technique;Planning target volumes;Treatment planning systems