Max CAPR: Preliminary Clinical Studies with 5 Sec Acquisition Times

Clifton R. Haider¹, Eric A. Borisch¹, James F. Glockner¹, Petrice M. Mostardi¹, Stephen J. Riederer¹

In this work a previously described Cartesian Acquisition with Projection Reconstruction-like sampling method (CAPR) is undersampled to provide a net acceleration approaching 40 by eliminating all view sharing, termed Max CAPR, to provide 5 sec acquisition times for bilateral 3D CE-MRA of the calves with 1 mm isotropic spatial resolution. Max CAPR is shown to have improved temporal fidelity as compared to the reference view-shared sequence. Results with the new method from nine volunteer studies and 17 patients with suspected peripheral vascular disease are shown to provide images of improved temporal fidelity and comparable diagnostic quality to the view-shared reference.