Atchar Sudhyadhom

About

Atchar Sudhyadhom is a leading researcher in medical physics, specializing in stereotactic body radiotherapy (SBRT) and advanced treatment optimization. His work focuses on improving the precision and safety of radiation therapy for prostate and lung cancers. A key contribution is his investigation into interfraction anatomical variability during prostate SBRT, demonstrating that daily changes in organ position can significantly increase rectal dose—a finding with over 30 citations that has informed adaptive treatment strategies. Sudhyadhom also developed the CyberArc-m6 algorithm, a novel optimization method enabling noncoplanar continuous arc delivery for the CyberKnife m6 system, which reduces treatment times while maintaining dosimetric quality. In lung SBRT, he quantified how real-time tumor tracking lowers radiation pneumonitis risk compared to conventional internal target volume methods, providing critical evidence for motion management technique selection. His work bridges computational optimization and clinical application, directly enhancing patient outcomes by minimizing toxicity. With a growing citation impact, Sudhyadhom’s research continues to shape modern radiotherapy, offering practical solutions for more accurate, efficient, and safer cancer treatments.

Research Focus

Key Achievements

Top Papers

1. 1
   Interfraction Anatomical Variability Can Lead to Significantly Increased Rectal Dose for Patients Undergoing Stereotactic Body Radiotherapy for Prostate Cancer

   30 citations · 2016
2. 2
   A continuous arc delivery optimization algorithm for CyberKnife m6

   13 citations · 2018
3. 3
   Influence of respiratory motion management technique on radiation pneumonitis risk with robotic stereotactic body radiation therapy

   9 citations · 2018

Key Collaborators

Contact & Links