[Mristudio-users] DTI

[Shaimaa Abdelsattar]

1.I successfully  uploaded the images by MRI 3D view after using Philips DICOM file format, and subsets of images numbered from 0 to 33 are present at the tool par on the right, then
2. I used DTI mapping option in DTI studio to proceed for my processing and again I selected Philips DICOM 
3. I selected a predefined gradient named Philips high angular 32, then the color, adc maps appear disorganized with noise, I don't know where is the mistake and how can I figure the correct gradient table.

Thank you for your support

On Feb 16, 2013, at 3:11 PM, "susumu mori" <susumu at mri.jhu.edu> wrote:

> If you are using Philips Extended DICOM, you can use the function to extract the table from the header.
> If you are using conventional DICOM, you need to know which table was specified when the data were acquired.
> There are 12 types of tables typically used in Philips scanners;
> 
> [6, 15, or 32 orientations (called Low, Medium, and High)] x [Gradient Overplus Option ON/OFF] x [b0 image stored at the beginning or at the end]
> 
> After you successfully load the DICOM image, you can see the number of images. For example, if you used the "Medium", there should be 15 diffusion-weighted images, b0 image, and one calculated image (this will not be used), total 17 images. Likewise, the "High" option would generate 34 images.
> 
> By looking at these 17 or 34 images, you can find if the b0 images are stored in the beginning or end.
> 
> The only freedom left is Overplus On or OFF. I strongly recommend to use "OFF". You can check both tables to find which is the right one.
> Not all these 12 tables are pre-installed, but most of the commonly used ones are there.
> 
> Let me know if you couldn't figure out the table.
> 
> Susumu
> 
> On Sat, Feb 16, 2013 at 7:02 AM, Shaimaa Abdelsattar <shaimaa96 at hotmail.com> wrote:
>> Hi,
>> I am new user  of DTI and I use Philips DICOM data set.  I used the algorithm table already present at the DTI studio program. Is this right? As I found the results unsatisfactory resulting the image quality,
>> Thanks
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