Abstract：In precision radiotherapy, doctors need to make a lot of modifications when sketching the target area and organs at risk,
which greatly reduces the working efficiency of doctors and the accuracy of the target area. Therefore, this paper improved the LiveWire algorithm, and improved the calculation of gradient amplitude from the horizontal direction and vertical direction in the original
algorithm to the horizontal direction, 45°direction, vertical direction and 135°direction. The improved algorithm was applied to
the ARPlanner software to interactively sketch the organ at risk and the target area of patients. This paper compared the improved
algorithm with the original algorithm, and the experimental results showed that the improved algorithm could more accurately detect
the edge of the organization.
汪欣1，康世功2，郎锦义3. 基于改进的Live-Wire算法在ARPlanner中的应用[J]. 中国医疗设备, 2020, 35(4): 60-64.
WANG Xin1, KANG Shigong2, LANG Jinyi3. Application of Improved Live-Wire Algorithm in ARPlanner. China Medical Devices, 2020, 35(4): 60-64.
