The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2007
Filed:
Sep. 17, 2002
Jennifer Keegan, London, GB;
David Firmin, London, GB;
Jennifer Keegan, London, GB;
David Firmin, London, GB;
Royal Brompton & Harefield NHS Trust, London, GB;
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.