Hi Bruce, Thank you for your fast answer. I'm focusing on SNR, Motion Correction and Intensity Inhomogeneities.
Regards, 2013/5/13 Bruce Fischl <fis...@nmr.mgh.harvard.edu> > 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 >> Avis - Aviso - Legal Notice: http://www.ifae.es/legal.html >> >> >> > > The information in this e-mail is intended only for the person to whom it > is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/**complianceline<http://www.partners.org/complianceline>. > If the e-mail was sent to you in error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > -- 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 Avis - Aviso - Legal Notice: http://www.ifae.es/legal.html
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