In a new study published by Maastro and Erasmus MC Cancer Institute, CBCT images produced by the HyperSight imaging solution are compared to fan-beam CT, ring-gantry CBCT, and C-arm linear accelerator CBCT images. The study showed that CBCT images produced by HyperSight had increased image quality and noise reduction compared to the other CBCT imagers, while HyperSight and CT imagers had comparable performance for metal artifact reduction (MAR) and extended field-of-view (eFoV) features. These results indicate the potential for adaptive radiotherapy and optimized workflows using the HyperSight imaging solution. https://bit.ly/3LjW7De
Can hypersight software be installed on older TrueBeams?
Senior Medical Physicist at SolarisHealth/Advanced Radiation Centers of NY
1moWhat is the dose per frame at a given KV and mAmp sec. If you are to do real time target tracking with these images you may want a time resolution of at least 0.2-0.3 sec/ frame to resolve a normal breathing cycle based on ~ 15 breaths/min or ~ 4 sec/ breath. As an example If you are treating with a fff beam let's say that has 800 MU/ min and you have 1600 MU To be delivered then it would take 120 sec for text. At 0.2 sec/ frame that would be 5f//sec*120sec which will be 600 frames. This will be a very low dose ~ equal to a dose of a cbct for real time tracking. If these images are good then this would be great for real time target tracking without giving too much dose to the patient. If the fff dose rate is higher it will be even better with shorter treatment times.