Dr. Aaron Fenster, Director of Robarts Imaging, has been appointed the Director of the Imaging platform at The Ontario Institute for Cancer Research (OICR).
Hybrid PET/MRI Prostate Scan
Axial view of the pelvis: T2-weighted MRI is shown in greyscale (bright areas have most intense MRI signal) and 18F-fluorocholine PET is shown in colour (yellow indicates most intense PET signal). The prostate appears in the centre of the image. Rapidly dividing tumour cells have elevated levels of choline (used to produce part of the cell membrane) so take up more of the 18F-fluorocholine than normal tissue. On T2-weighted MRI, cancer of the peripheral zone of the prostate tends to have reduced signal intensity. The area of reduced T2 signal intensity seen in the anterior part of the prostate also shows high 18F-fluorocholine uptake (indicated by yellow colour). Other tissues in the body also metabolize choline. For example, the area posterior to the prostate (below the prostate in the image) showing choline uptake is the rectum. MRI and PET images were acquired simultaneously using a Siemens Biograph mMR at St. Joseph's Health Care, London.