Hi Ted,
In our case, we have a clinical contract fo our Achieva, so we couldn't go
upper than 32 directions, what we did was to give the Phillips tech a file
with the bvecs we wanted to use (64) and he introduced them in the scanner
for us. It was quite easy as fast.
greetings,
Diana
Matt Glasser dijo:
> I only have experience with Siemens scanners, but typically if you want
> more
> directions you have to hack the sequence code. As long as your gradients
> are in the right format (and normalized if your scanner requires that), I
> don't see why you couldn't use whatever directions you wanted.
>
> Peace,
>
> Matt.
>
> -----Original Message-----
> From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf
> Of Ted Yanagihara
> Sent: Thursday, May 15, 2008 9:47 PM
> To: [log in to unmask]
> Subject: [FSL] User defined gradient table for Philips Achieva
>
> Hi everyone,
>
> I know that there have been lots of discussions about getting the
> gradient directions from the par/rec files, but I haven't been able
> to find any threads on manually defining them on the scanner. The
> "maximum" option on the console only gives 32 directions, but we
> would like to see how things improve by manually increasing the
> number of directions. Does anyone have experience with generating a
> table of gradient directions? Would it make sense to use the bvecs
> from a GE scanner?
>
> Thanks in advance,
>
> ted
>
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