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Department of Radiation Therapy and Medical Physics, Hartford Hospital, Hartford, Connecticut
Correspondence: For correspondence or reprints contact: Lee W. Goldman, Department of Radiation Therapy and Medical Physics, Hartford Hospital, 80 Seymour St., Hartford, CT 06102. E-mail: lgoldma{at}harthosp.org
ABSTRACT
This article describes the principles and evolution of multislice CT (MSCT), including conceptual differences associated with slice definition, cone beam effects, helical pitch, and helical scan technique. MSCT radiation dosimetry is described, and dose issues associated with MSCT—and with CT in general—as well as techniques for reducing patient radiation dose are discussed. Factors associated with the large volume of data associated with MSCT examinations are presented.
Key Words: CT; multislice CT; radiation dosimetry
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