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+--- Forum: Cardiac MRI (/forumdisplay.php?fid=33)
+--- Thread: Prospective gating (/showthread.php?tid=10169)
Prospective gating - learnmrphysics - 09-25-2015 10:24 PM
Can anyone explain the advantages and disadvantages of prospective vs. retrospective gating? It seems that prospective is generally faster, but I am not sure why if you the same number of phase encoding steps for a particular frame of the cardiac cycle.
RE: Prospective gating - aelster - 11-08-2015 08:21 PM
For a patient with a uniform heartbeat, there would be no difference in acquisition times between prospective and retrospective gating. For irregular heartbeats, many views would be rejected because they wouldn't fit in the acquisition window for prospective gating, so the acquisition would be longer.
More info can be found at the webpage
http://mriquestions.com/gating-parameters.html
RE: Prospective gating - MishaGreen - 01-12-2016 08:19 PM
(11-08-2015 08:21 PM)aelster Wrote: For a patient with a uniform heartbeat, there would be no difference in acquisition times between prospective and retrospective gating. For irregular heartbeats, many views would be rejected because they wouldn't fit in the acquisition window for prospective gating, so the acquisition would be longer.
More info can be found at the webpage
http://mriquestions.com/gating-parameters.html
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