2Lung Cancer Screening CT Protocols Version 5.1 13 September 2019, provided by AAPM, American Association of Physicists in Medicine
The CTDIvol values in this graphic are for an idealized patient only; individual patients may have higher or lower values to reflect adjustment for patient size. By definition, a standard sized patient is approximately 5'7" and 155 pounds or 170 cm and 70 kg, with a BMI ≈ 24.