A set of synthetic CT images created from T1 and T2 weighted MR imaging of a prostate/rectum phantom at Henry Ford Hospital. The hospital is one of the research centers developing synthetic CT imaging for treatment planning to avoid the need for CT scans of a patient just for treatment planning purposes when they already have a more detailed soft tissue MRI exam of the anatomy.
The picture shows that time series signal is extracted from a series of ultrasound frames for classification. Each patch across a number of frames inside the prostate is classified into either cancerous or normal tissue. The image at the lower right corner shows the overall result for those frames. Image courtesy of Pingkun Yan and researchers from NIH, University of British Columbia and Queens University.