BME Frontiers / 2020 / Article / Fig 6

Research Article

Dual-Modality X-Ray-Induced Radiation Acoustic and Ultrasound Imaging for Real-Time Monitoring of Radiotherapy

Figure 6

xRAI and US dual-modality imaging of an ex vivo rabbit liver, demonstrating the capability of tracking tissue movement with respect to the X-ray beam. (a) The setup for validating the capability of the system in monitoring of misalignment between the X-ray beam and the treatment target (blue arrow indicates the direction of sample motion). (b) The xRAI and US combined images at different time points (0, 2, 4, 6, 8, and 10 seconds) during continuous imaging over a time period of 11 seconds. In each combined image, the xRAI image in pseudocolor presenting the location of the X-ray dose deposition (marked by the yellow dashed box) is superimposed on the US image in grayscale showing the tissue structure.