Three dimensional digital subtraction magnetic resonance angiogr

Surgery – Diagnostic testing – Testing aqueous humor pressure or related condition

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600419, 600420, 324307, 324309, A61B 5055

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active

058738258

ABSTRACT:
A dynamic MRA study of a subject is performed using a 3D fast gradient-recalled echo pulse sequence. The frame rate of the resulting series of reconstructed images is increased by sampling a central region of k-space at a higher rate than the peripheral regions of k-space. A difference image is produced by subtracting a mask formed by central region k-space sampling from a selected image frame formed by central region and peripheral regions k-space sampling.

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