ESTRO 2024 - Abstract Book

S3790

Physics - Image acquisition and processing

ESTRO 2024

Conclusion:

The image segmentation in half-AB DTS images yielded superior results compared to full-AB DTS images, primarily due to the higher temporal resolution, which could be attributed to the shorter image acquisition time. Additionally, the image segmentation in half-A DTS images represented improved results compared to half-AB DTS images, mainly because of reduced mechanical constrains arising from the use of dual image panels. The distribution of grayscale histograms within the sternum outline provided clearer quantification of the segmentation results, half-A DTS images showed a more concentrated distribution in higher grayscale values compared to partial-A DTS images. In summary, the half-A DTS images, acquired with 60° image acquisition angle, demonstrated the optimal image quality in our system.

Keywords: DTS, RW, IGRT

References:

[1] Q Jackie Wu, Jeffrey Meyer, Jessica Fuller, Devon Godfrey, Zhiheng Wang, Junan Zhang, Fang-Fang Yin. Digital tomosynthesis for respiratory gated liver treatment: clinical feasibility for daily image guidance. Int J Radiat Oncol Biol Phys. 2011 Jan 1;79(1):289-96.

[2] Luca Bertolaccini, Andrea Viti, Alberto Terzi. Digital tomosynthesis in lung cancer: state of the art. Ann Transl Med. 2015 Jun;3(10):139.

[3] Junan Zhang, Q Jackie Wu, Devon J Godfrey, Toyosi Fatunase, Lawrence B Marks, Fang-Fang Yin. Comparing digital tomosynthesis to cone-beam CT for position verification in patients undergoing partial breast irradiation. Int J Radiat Oncol Biol Phys. 2009 Mar 1;73(3):952-7.