Efficient Parallel Imaging Strategies for Time-Of-Flight Venography with Continuously Moving Table

Matthias Honal¹, Sandra Huff¹

Subtraction TOF venography with continuously moving table is an efficient method to image the veins of the whole legs with one measurement. The acquisition time is an important issue for that method. In this study two variants of the GRAPPA algorithm which do not require extra calibration data for coil weight computation are applied to accelerate the substraction TOF venography method. Without a significant loss in image quality a speedup of 9% compared to conventional GRAPPA could be achieved.