Automated Bolus Tracker Positioning for MRI Liver Scans

Takao Goto¹, Hiroyuki Kabasawa¹

We present a new method of the automated bolus tracker positioning for MRI liver scans. Bolus tracker is used to monitor bolus signal to know the arrival of the bolus. Placing the bolus tracker inside the aorta accurately with looking at scout images is complicated task and one of the factors making operatorfs workflow worse. In proposed method, the aorta was detected using AdaBoost by searching aorta around spine. 234 axial images of 64 volunteersf datasets were tested and showed 98.3 % success rate of the aorta detection. Automated size of the tracker will be necessarily towards practical use.