Development of a Hybrid Magnetic Resonance and Ultrasound Imaging System
CD and PD images and SD traces, taken before and during - (FLASH) and -weighted (TSE) imaging. The CD and PD images shown were those worst affected by artefacts out of a set of 75 frames. The vertical arrow (RHS, middle image) indicates the time point at which the FLASH sequence began. The horizontal arrows in the SD images indicate a 1-second time period. The horizontal echogenic structure visible beneath the gel is an acoustic absorber, placed in the tank to minimise reflections during US imaging. The extent of the B-mode FOV shown in these images is cm.