[Mristudio-users] adc artifacts

[Durai Arasan]

thanks Dr Mori, but the data is from the mristudio tutorial. so i am
definitely wrong somewhere. increasing the threshold seems to get rid of
the artifacts but i am losing information as well.

maybe i should use a image mask while calculating ADC?


On Thu, Feb 21, 2013 at 9:02 PM, susumu mori <susumu at mri.jhu.edu> wrote:

> If this artifact appears reproducible, you'd better contact your scanner
> manufacturer and show the image.
> This half-field-of-view ghost is usually caused by poor calibration scan
> and phase correction for the EPI data acquisition. We always have this
> ghost in DTI, which uses EPI, but with much less degree.
>
> On Thu, Feb 21, 2013 at 8:42 PM, Durai Arasan <durai23 at gmail.com> wrote:
>
>> hi,
>>
>> just started using this amazing software.
>>
>> my adc map has consistent artifacts (calculated with b-val = 700 thresh =
>> 10) as shown in attached image.
>>
>> this is probably something trivial, as i am using the sample data
>> provided in the tutorial with default values. can someone point out whats
>> wrong?
>>
>> thanks
>> durai
>>
>>
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