- All patients in both the phase I and phase II portions of this study must have at least one previously unirradiated, bidimensionally measurable lesion by computerized tomography (CT) or magnetic resonance imaging (MRI) scan of > 20 mm (if conventional CT scan) or more than or equal to 10 mm (if spiral CT scan). Triphasic spiral CT or MRI scans are preferred when such equipment is available. All CT scans should employ a “hepatoma protocol” image capture technique.