This is my dataset.I don't know another Tenx

----Messaggio originale---- Da: fischl@nmr.mgh.harvard.edu Data: 7-dic-2012 17.09 A: "Andrea Tateo"andrea.tateo@virgilio.it Ogg: Re: R: Re: R: Re: [Freesurfer] different MRI size

why do you have different matrix sizes? And I can't tell resolution without knowing the FOV. Ideally no voxel dimension is bigger than about 1.3-1.4mm.

cheers Bruce

p.s. please cc the list so that others can answer!

On Fri, 7 Dec 2012, Andrea Tateo wrote:

My data set has two types of MR-images: first 256, 124, 256

second 181, 145, 181

----Messaggio originale---- Da: fischl@nmr.mgh.harvard.edu Data: 7-dic-2012 15.56 A: "Andrea Tateo"andrea.tateo@virgilio.it Ogg: Re: R: Re: [Freesurfer] different MRI size

Sure. What are the voxel sizes?

On Dec 7, 2012, at 9:52 AM, Andrea Tateo andrea.tateo@virgilio.it wrote:

  Thank you Bruce for answering.

My images have size: 256, 124, 256 and 181, 145, 181 I would like to have FS-output with same input's size to evaluate DICE index.

(The manual segmentation of comparison are images with sizes 256, 124, 256 and 181, 145, 181)

Thank you for your time

----Messaggio originale---- Da: fischl@nmr.mgh.harvard.edu Data: 7-dic-2012 14.20 A: "Andrea Tateo"andrea.tateo@virgilio.it Cc: Freesurfer@nmr.mgh.harvard.edu Ogg: Re: [Freesurfer] different MRI size

Hi Andrea

sure, recon-all will handle whatever you give it and resample to 256^3, but the accuracy will degrade as the resolution worsens. What resolution are your images?

cheers Bruce On Fri, 7 Dec 2012, Andrea Tateo wrote:

...

Hello FS experts, I would like to study MRI, by using FS, to extract binary images

of

...

hippocampi.

My data images have sizes different from 256,256,256.

Is there any FS procedure to generate images 256, 256, 256 from

my data

...

set?

Does FS work only on images 256, 256, 256 ?

Thank you very much

Andrea

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