A volume-controlled, anatomy-driven autoplanning strategy for whole-pelvic volumetric modulated arc therapy
By
Chih-Yuan Lin
An-Cheng Shiau
Ti-Hao Wang
Shih-Ming Hsu
May 7, 2026
Clinical Scorecard: Anatomy-Based Automated Planning Approach for Whole-Pelvic Volumetric Modulated Arc Therapy Using Volume Control
At a Glance
Category Detail
Condition Pelvic malignancies requiring whole pelvic radiotherapy (WPRT) Key Mechanisms Anatomy-driven automated planning strategy incorporating volumetric overlap information Target Population Patients with pelvic malignancies undergoing WPRT Care Setting Department of Radiation Oncology, China Medical University Hospital
Key Highlights
VCAP achieved V95 coverage above 95% comparable to clinical planning. Significant reduction in rectal doses (V30 decreased by 24.6% compared to clinical planning). Improved bladder sparing in the 15–40 Gy range. Planning time reduced from 120 minutes to 21 minutes with VCAP. Consistent plan quality across the patient cohort. Guideline-Based Recommendations
Diagnosis
Retrospective analysis of patients with pelvic malignancies. Management
Use of VCAP for automated VMAT planning to enhance OAR sparing. Monitoring & Follow-up
Evaluate dosimetric endpoints including PTV coverage and OAR sparing. Risks
Consider potential toxicities to surrounding organs at risk (OARs) during WPRT. Patient & Prescribing Data
584 patients with pelvic malignancies treated with WPRT.
Incorporation of volumetric overlap constraints improves planning efficiency and consistency.
Clinical Best Practices
Adopt automated planning strategies to reduce inter-planner variability. Utilize anatomy-driven approaches for patient-specific optimization. Regularly evaluate and validate automated planning systems for broader clinical applications. References
