Motion Likelihood Over Spine Radiosurgery Treatments—An Intrafraction Motion Analysis

Ultrasound for intrafraction motion monitoring

Real-Time Intrafraction Motion Management During Radiotherapy

Real-time intra-fraction target tracking is a technique that enables adjustment of the target radiation while it is being delivered (i.e., intra-fraction adjustments) to compensate for movement of the organ inside the body. Real-time tracking, which may or may not use radiographic images, is one of many techniques referred to as “image-guided radiotherapy” (IGRT). For this policy, realtime trac...

Prostate Intrafraction Motion Assessed by Simultaneous Kv

PROSTATE INTRAFRACTION MOTION ASSESSED BY SIMULTANEOUS KV FLUOROSCOPY AT MV DELIVERY by JUSTUS D. ADAMSON August 2009 Co-Advisor: Dr. Qiuwen Wu Co-Advisor: Dr. Jay Burmeister Major: Medical Physics Degree: Doctor of Philosophy Purpose: To investigate the use of a gantry mounted kV imager for prostate intrafraction motion measurement during simultaneous dose delivery. Materials & Methods: We dev...

Real-Time Intrafraction Motion Management During Radiotherapy

Simulation of intrafraction motion and overall geometric accuracy of a frameless intracranial radiosurgery process

We conducted a comprehensive evaluation of the clinical accuracy of an image-guided frameless intracranial radiosurgery system. All links in the process chain were tested. Using healthy volunteers, we evaluated a novel method to prospectively quantify the range of target motion for optimal determination of the planning target volume (PTV) margin. The overall system isocentric accuracy was teste...