From Dennis_CheongLH at pmail.ntu.edu.sg  Mon Jun 11 22:40:37 2007
From: Dennis_CheongLH at pmail.ntu.edu.sg (#CHEONG LAI HONG#)
Date: Tue, 12 Jun 2007 10:40:37 +0800
Subject: [Dtistudio-users] registration
Message-ID: <4E0468C08FD1E449A54A96A56842C47F7B88F2@MAIL22.student.main.ntu.edu.sg>

A new feature is the registration button in the DtiStudio.
 
However, I couldn't figure out a proper/convenient way to use it.
 
1. If I want to align 2 of the acquisitions with a third one, do I need to repeatedly select the target and the 2 other volumes for each of the gradients?
 
2. After the aligned images are produced, how to use them for tensor calculations?
 
 
Thanks and regards,
Dennis Cheong
 
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From suzannekoudijs at xs4all.nl  Tue Jun 26 11:39:30 2007
From: suzannekoudijs at xs4all.nl (Suzanne Koudijs)
Date: Tue, 26 Jun 2007 17:39:30 +0200 (CEST)
Subject: [Dtistudio-users] skull rim
Message-ID: <11695.143.121.239.46.1182872370.squirrel@webmail.xs4all.nl>

Hi,

I am a new user to DTI studio and have a very basic question:

When I make a ADC or FA map by DTI studio the map is surrounded by a rim,
which I think represents fat underneath the skull.
This rim is not present in the ADC and FA maps that are directly
reconstructed by the scanner (philips). Does this mean that the scanner
uses a B0-mask for the maps and DTI-studio doesn't? Is there a way to use
a mask in DTI studio? This rim is very unpleasant in registration to the
anatomic scans.

Thank you in advance,

Suzanne Koudijs


Suzanne M. Koudijs, MD, PhD-student
Image Sciences Institute
University Medical Center Utrecht
Postaddress:
Room QS.459
Heidelberglaan 100
P.O.Box: 85500
3508 GA Utrecht
The Netherlands

Telephone: +31 30 2504626
Telefax:   +31 30 2513399