Figure 4:

Axial images in a 72-year-old man with multifocal hepatocellular carcinoma, with the index lesion in segment 6. A, Baseline T1-weighted MR image acquired in the portal venous phase shows the index lesion in segment 6 (arrowheads). B, Reconstruction of the closed arc cone-beam CT (CBCT ) data acquired during the first conventional TACE procedure depicts the tumor only to a limited extent (arrowheads), owing to suboptimal centering of the FOV. C, Follow-up MR image acquired 4 months later demonstrates extensive growth of the tumor (arrowheads); the patient was referred for another cycle of conventional TACE. D, Even though the tumor has grown, the axial reconstruction of the open arc cone-beam CT data from the intraprocedural imaging depicts the complete tumor (arrowheads).