A 3D cones k-space trajectory with golden angle ordering was developed along with a multiscale low rank reconstruction for dynamic contrast enhancement with ultrashort echo time (DCE-UTE) and with fast image reconstruction time. With IRB approval and informed consent the sequence was tested in 21 consecutive subjects referred for 3T contrast-enhanced pelvic MRI. For comparison, a Cartesian DCE SPGR sequence with golden angle radial k-space ordering, soft-gated self navigation, and low rank reconstruction (DCE-SPGR) served as case controls. DCE-UTE performed significantly better than DCE-SPGR in delineation of anatomic structures (p=0.004) and overall perceived image quality (p=0.003). These results indicate a 3D fully noncartesian DCE-UTE sequence and reconstruction improves image quality in pelvic DCE.
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