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Fig. 4B. —77-year-old man weighing 170 lb (77 kg) who had liver
metastases from breast cancer. Equilibrium phase contrast-enhanced CT scan was
obtained with 50% reduced—dose radiation of 130 mA and 140 kVp. Lesions
are visualized on scans obtained with both standard and reduced doses of
radiation but are better defined on scan obtained with standard-dose radiation
(A).