Radiation dose issues in longitudinal studies involving computed tomography.

  title={Radiation dose issues in longitudinal studies involving computed tomography.},
  author={John R. Mayo},
  journal={Proceedings of the American Thoracic Society},
  volume={5 9},
Computed tomography (CT) examinations are increasingly used for clinical diagnostic and research purposes, as they provide in vivo anatomic information similar to that provided by gross anatomy. In conjunction with physiologic maneuvers or contrast media, CT may also provide in vivo physiologic information. Using calibrated acquisition protocols, accurate noninvasive measurements of tissue density, air volume, blood volume, and capillary perfusion can be performed. Serial CT scans can provide… CONTINUE READING
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