Hi Jordi

this is definitely vendor specific. In Siemens you can for example turn on "prescan normalization" which will correct for intensity bias. You can have it generate two series - one with and one withour the correction. What other artifacts do you mean? There are lots of possibilities....

cheers
Bruce

On Mon, 13 May 2013, Jordi Delgado wrote:

Dear FS experts,

I'm studying the most common artifacts on MRI scanning. I started with the SNR calculation (which is included
in recent FS versions), but I'm afraid that these artifact is filtered/processed with the scanner control
program, and I'm wasting time trying to calculate this ratio.

My qüestion is, any one of you know if the scanners control programs are correcting SNR, Inhomogeneties,
motion, etc? Have any sense to detect these artifacts, as a quality assurance method before to accept/decline
the adquired image with an external method of the scanner control program?

Thank you in advance,

--
Jordi Delgado Mengual
PIC (Port d'Informació Científica)
Campus UAB, Edifici D
E-08193 Bellaterra, Barcelona
Tel: +34 93 586 82 32 Fax: +34 93 581 41 10
http://www.pic.es
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