|Title||RECIST versus volume measurement in medical CT using ellipsoids of known size|
|Publication Type||Journal Article|
|Year of Publication||2010|
|Authors||Z. H. Levine, B. R. Borchardt, N. J. Brandenburg, C. W. Clark, B. Muralikrishnan, C. M. Shakarji, J. J. Chen, and E. L. Siegel|
|Keywords||2010, Medical optics instrumentation, X-ray imaging|
Two hundred eighty three uniaxial ellipsoids with sizes from 4 mm to 11 mm were measured with a coordinate measuring matching (CMM) and also scanned using a medical computed tomography (CT) machine. Their volumes were determined by counting voxels over a threshold, as well as using equivalent volumes from the length given by the RECIST 1.1 criterion (Response Evaluation Criteria in Solid Tumors). The volumetric measurements yield an order of magnitude reduction in residuals compared to the CMM measurements than the residuals of the RECIST measurements also compared to the CMM measurements.