Quiescent-Interval Single-Shot Unenhanced Magnetic Resonance Angiography Featuring Continuous Table Movement

Michael O. Zenge¹, Christopher Glielmi², Peter Weale², Ioannis Koktzoglou³, Robert R. Edelman³, Manuela Rick¹, Peter Schmitt¹, Xiaoming Bi²

Recently, quiescent-interval single-shot (QISS) peripheral MRA was introduced as a fast and robust approach for unenhanced MRA. Like any other multi-step MR imaging method QISS suffers from boundary artifacts at successive stations. Furthermore, the acquisition of adjustment and shimming parameters can be accelerated significantly in the moving table regime. Thus, continuous table movement was enabled for QISS and was compared to multi-step imaging in 5 healthy volunteers. In addition to comparable image quality as the multi-step approach, continuous table movement QISS reduces exam duration and complexity justifying further evaluation in patients.