Non-Contrast Enhanced Time-Resolved 4D MRA with Dynamic Golden Angle Radial Acquisition & K-Space Weighted Image Contrast (KWIC)

Yiqun Xue¹, Lirong Yan², Yoon Chung Kim², Danny JJ Wang², Hee Kwon Song¹

This work describes a new method for non-contrast enhanced time-resolved dynamic MRA (dMRA) utilizing single- and multi-shot dynamic radial acquisition with golden angle view increment and k-space weighted image contrast (KWIC). The reconstructed 4D dMRA data set demonstrated a high quality, high temporal resolution dynamic series without apparent temporal blurring, yielding results comparable to standard Cartesian based dMRA approaches, but in a fraction of the scan time.