Comparative study of automatic bolus tracking and manual bolus tracking in triphasic Computed Tomography of the abdomen

Abstract

Background: A computer-assisted bolus tracking system that initiates diagnostic scans prompted by contrast enhancement was recently developed. Using low-dose scans, this technology allows the scans to start, either manually or automatically, when the contrast enhancement rises to a predefined threshold (ROI). We aimed to compare the automatic bolus tracking and manual bolus tracking triphasic contrast enhancement in the abdomen. Materials and Methods: To compare automatic bolus tracking and manual bolus tracking method for contrast enhancement in the Hounsfield Unit of abdominal vessels and measure the delay in contrast enhancement in automatic and manual bolus tracking methods. The studies were conducted in the Department of Radio-diagnosis. 72 participants were included in the study that underwent triphasic CECT abdomen. Results: The Thoracic Aorta (HU) and Abdominal Aorta (HU) of the two groups differ significantly (P value 0.001). There is a substantial difference between the two groups in Hepatic Artery (HU) and Delay Time (S) (P value 0.001). Conclusion: This study revealed that automatic bolus tracking was the most beneficial approach in triphasic CECT Abdomen when compared to manual bolus tracking.