2
$\begingroup$

I am learning how to use SPM and ISAS to analyze ictal and interictal SPECT. However I am stuck at a point of their tutorial.

In the item 1.2 one has to set the origin for the SPECT image. That is, to pinpoint the anterior commissure. This is a fairly easy task in a MRI, but very hard to do in a SPECT. How am I to find a tiny anatomical area in such a blurry image (like the one below)?

enter image description here

Are there any anatomical references that I should be using in order to find the approximate area for the anterior commissure?

Any help would be greatly appreciated.

Improve this question
$\endgroup$

1 Answer 1

Reset to default
1
$\begingroup$

You can use the Whole Brain Atlas by Harvard to look at the normal brain anatomy in 3-D with MRI/PET.

Check the Anterior Commissure (AC) on the MRI and sync it with the PET or SPECT. It helps.

More specifically, select "Anterior Commissure" and T1/FDG and click sync to show all the orientations in the same modalities and anatomical structure. It helps to find the anterior commissure in a normal brain using nuclear medicine image.

Improve this answer
$\endgroup$
1
  • $\begingroup$ Thanks, Henrique, however I want to find the anatomical point of interest in the particular image I have in hand. Usually it does not comes with an anatomical image overlayed, and it is really hard to pinpoint the anterior comissure. I guess the answer is that one can never exactly find the anterior comissure when all one has is the SPECT image, w/o the anatomical image to guide... Thanks anyways... $\endgroup$
    – lf_araujo
    Aug 13, 2016 at 7:05

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.