[Mrtrix-discussion] ideal protocol for paediactrics

Ashmore, Jonathan jonathan.ashmore at kcl.ac.uk
Tue Aug 7 05:18:58 PDT 2012


Hi all,
I was wondering if anyone works with CSD on pediatric data and has thoughts on the ideal "clinical" protocol. 
We are thinking along the lines of the following

2.5mm voxel
64 directions (or thereabouts)
number b0's 10
b-value 1500

We ideally need a sequence of no more than 10-11 minutes and our patients are fully anaethetised with no cardiac gating. We need to get reasonable ADC/FA results from a standard DTI recon since these images will be clinically reported on. 

Our main queries are: 
Are we better off using b=1000 or b=1500? 
32 direction, with 2 averages or 64 directions, 1 average?

We are setting this up on a 1.5T Philips achieva and so if anyone happens to have an appropriate exam card to hand that they wouldn't mind sending that would be fantastic too. 

Jonathan Ashmore 

email:  jonathan.ashmore at nhs.net
           jonathan.ashmore at kcl.ac.uk

MRI Physicist
Kings College Hospital
Ruskin Wing
Denmark Hill
London SE5 9RS
Ph (KCH): 020 3299 9000 (x4898)
Ph (CNS): 020 3228 3081
fax (CNS): 020 3228 2116


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