Scan Quality and Entrance Skin Dose in Thoracic CT: A Comparison between Bismuth Breast Shield and Posteriorly Centered Partial CT Scans

Figure 6

Axial contrast CT image of chest. Image delineates the six regions used in the qualitative comparison of the scans with and without the breast shield in patients. The six regions are anterior thoracic wall (red), lateral and posterior wall (blue), lung parenchyma [10], mediastinum, heart, and aorta and great vessels (all three within yellow).