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Aortic ghost artifact in ultrashort TE multislice gradient echo MR images is not increased by paramagnetic
D G Mitchell1, H Ortega, F Mohamed
1Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
Magnetic Resonance in Medicine
|February 1, 1993
Abstract:
Pulsation artifact on gradient echo images with ultrashort TE (i.e., < 3 msec) and intermediate TR is primarily from view-to-view amplitude modulation. Paramagnetic contrast agents increase the signal from blood during diastole without increasing the intensity of unsaturated systolic blood, decreasing signal modulation between systole and diastole. In a phantom and in humans, artifact decreased or remained the same following contrast enhancement.