Immersive visualization with automated collision detection for radiotherapy treatment planning

Area of Science:

• Radiation Oncology
• Medical Physics
• Cancer Treatment Technology

Background:

• Intensity modulated radiotherapy (IMRT) is a standard cancer treatment.
• IMRT planning typically uses coplanar radiation beams due to complexity.
• Non-coplanar beams may offer improved treatment but pose planning challenges.

Purpose of the Study:

• To evaluate the efficacy of non-coplanar beams in IMRT for prostate cancer.
• To assess the utility of RTStar software in facilitating non-coplanar beam planning.
• To compare dosimetric outcomes of non-coplanar versus coplanar IMRT plans.

Main Methods:

• A study involving 8 prostate cancer patients undergoing IMRT.
• Utilized RTStar software to create treatment plans with non-coplanar beam directions.
• Compared dosimetric results of non-coplanar plans against coplanar plans.

Main Results:

• RTStar software efficiently aided in selecting non-coplanar beam directions.
• The software provided collision warnings for patient setup.
• IMRT plans with non-coplanar beams demonstrated a dosimetric advantage over coplanar plans.

Conclusions:

• Non-coplanar beam IMRT, planned with RTStar, is feasible and dosimetrically advantageous for prostate cancer.
• RTStar simplifies the planning and setup of complex non-coplanar radiotherapy treatments.
• This approach represents a potential improvement in radiation therapy for prostate cancer patients.