Meeting Banner
Abstract #4086

Improvement of Gadoxetate Arterial Phase Capture with a High Spatio-Temporal Resolution Multiphase 3D SPGR-Dixon Sequence

Thomas A. Hope1, Manojkumar Saranathan1, Iva Petkovska1, Brian Andrew Hargreaves1, Robert J. Herfkens1, Shreyas S. Vasanawala1

1Department of Radiology, Stanford University, Stanford, CA, United States

To determine whether a method that improves temporal resolution via a combination of parallel imaging and temporal view sharing improves the capture of gadoxetate arterial phase after the administration of gadoxetate disodium. 37 patients were imaged with a conventional technique and 48 patients were imaged with the accelerated technique. A multiphase acquisition included the arterial phase more frequently than the conventional acquisition, with 17% of patients imaged with conventional acquisition missed the arterial phase compared to 2% with the multiphase acquisition. Additionally, there was increased relative intensity of the hepatic arteries and improved lesion enhancement with respect to adjacent parenchyma.

Abstract PDF Presentation Video

Keywords

acceleration acceptable acquisition acquisitions additionally adequate adjacent administered allow aortic array arterial artery bandwidth board bolus brief capture certified challenging channel clinical clinically coil combination compromising coverage delay determine determined differential dimensional disco distributed early elliptically enhancement enhancements equally every example fast five flex graded greater hepatic hope improved improvement improves included incorporation increasing injected intensities intensity labeled late lava lesion lesions materials matrix multiphase outer overall parallel patient patients peak percent periphery placed preserving probability pseudo quality radiologist radiology random rank reconstructed reconstruction reliable remaining representing resolution respect robust roughly routine sampled samples sampling saturation scale score section sections segmented separation sharing short signed significantly slices sought space spatial squared strategy student studies system temporal timing torso typical view volume water whether window