Segmented acceleration sensitive cine MRI

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

Reexamination Certificate

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Reexamination Certificate

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10489986

ABSTRACT:
Conventional gradient echo sequences with relatively long echo-times visualise complex flow as signal loss, the degree and extent of which is a qualitative indicator of valvular heart disease. Since the long echo-time precludes segmentation, breath-hold imaging is not possible and acquisitions typically take 2-minutes with respiratory motion artefact being a frequent problem. In the present invention, a segmented sequence is used which generates similar degrees of signal loss to a conventional gradient echo sequence. However, the acquisition duration is reduced and breath-hold imaging is feasible, removing respiratory motion artefact.

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