Ionizing Radiation Acoustic Imaging (iRAI)
Radiotherapy is the use of high-energy X-rays to damage tumor cells for cancer treatment. When these X-rays interact with tissue, the absorbed dose causes a slight temperature rise that leads to rapid thermoelastic expansion and the generation of acoustic waves. iRAI uses an ultrasound probe to detect these waves during therapy. By reconstructing them into 3D images, it shows where the dose is deposited inside the body. This information helps verify whether the dose accurately reaches the tumor, and once any deviation is detected, the beams’ alignment can be adjusted in real time to maintain optimal treatment outcome.
Breathing can cause radiotherapy beams to miss the tumor and harm healthy tissue. With our iRAI–Ultrasound–CT system, you can see radiotherapy like never before—real-time 3D dose maps on rabbit anatomy that track motion, detect misalignment, and steer the beam back, paving the way for safer, more precise treatments.