Dose-length product
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A parameter used as a surrogate measure for patient dose in a computed tomography scan of length L. By convention the DLP is reported in the units of mGy x cm and is the product of the energy deposited in a single slice (CTDIvol) multiplied by the scan length L. This quantity is analogous to the ‘kerma-area product (Kap)’ used in planar radiography.
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from ICRP Publication 135, 2017
A parameter used as a surrogate measure for energy imparted to the patient in a computed tomography scan of length L. By convention the DLP is reported in the units of mGy cm. See ICRU Report 87 (ICRU 2012) for more details.
