Automated volumetry at CT colonography: a phantom study.

  title={Automated volumetry at CT colonography: a phantom study.},
  author={Meghan E Blake and Jorge A. Soto and Robert A. Hayes and Joseph T. Ferrucci},
  journal={Academic radiology},
  volume={12 5},
RATIONALE AND OBJECTIVES To assess the performance of a computer-aided detection (CAD) algorithm for measuring polyp-like structures on CT colonography (CTC) images of a phantom. MATERIALS AND METHODS We constructed a Plexiglas phantom to which we affixed a series of idealized Plexiglas polyp-like objects, including spheres and hemispheres. We imaged the phantom in a four-channel detector CT scanner at a 1.3 mm slice thickness with a reconstruction interval of 0.6 mm, using combinations of… CONTINUE READING


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