Triple-phase MDCT of liver: Scan protocol modification to obtain optimal vascular and lesional contrast

Conclusion: A scan delay of 8 s, after trigger threshold (100 HU) is reached in the lower thoracic aorta, is optimal for the early arterial phase imaging, this phase being most helpful for assessment of hepatic arterial tree (CT angiography). The liver parenchyma showed maximum enhancement at 48 s scan delay.
Source: Indian Journal of Radiology and Imaging - Category: Radiology Authors: Source Type: research