Fractional Tumor Burden

A 57 year-old male with a history of brain tumor surgically removed in 1999 and underwent focal radiation therapy. 17 years later, the tumor resurfaced. A magnetic resonance image (MRI) exam of the brain was performed using contrast media that highlights tumor tissue. In addition, perfusion imaging was performed that allows calculation of blood flow in the brain.

Recently acquired tools such as IB Rad Tech solution by Imaging Biometrics allow further delineation of the tumor through analysis and measurements of the highlighted sections; because the highlights can also be scar tissue from radiation therapy. Figures A and B demonstrate the separation of tissue elements after the analysis.

Figure A

Figure A

Figure B

Below is a video demonstrating various views of the same anatomy with distinct layers of information, with the calculated fractional overlay seen on the upper right corner.
Physicians at Stanford now have this additional information to help choose optimal care paths for patients. Stanford 3DQ Lab regularly invests in tools such as this to help drive quality and utility in advanced visualization and quantification. Highly trained technologists and a robust quality system complement the software tools in providing a robust 3D and quantitative imaging service.


Shannon Walters, MS, RT(MR)
Executive Manager