Dear Barbara,
difficult to answer and it depends on your data. The additional use of the T2-weighted image can considerably improve skull-stripping and segmentation quality. Thus, I would simply try both approaches for some of your data and check the quality of the segmentations and choose the approach that better fits to your data.
Best,
Christian
On Tue, 26 Jan 2016 13:43:40 +0000, Barbara Kreilkamp <[log in to unmask]> wrote:
>Dear SPMers,
>
>I am wondering which tool you'd suggest, SPM12 Segment using the
>multiple channels (T1 and T2-weighted data) or CAT12 with only T1w- data
>(as I understand multimodal segmentation is not implemented here yet).
>
>I notice that CAT12 takes about 4 times as long as the multimodal
>approach in SPM12.
>
>Thank you,
>Best wishes,
>Barbara
>
>On 28/08/2015 12:36, John Ashburner wrote:
>> Yes, providing you are using a recent version. I would strongly
>> suggest using SPM12.
>>
>> In the user interface, you would specify two channels of information
>> (one for the T1 and one for the T2). Note that both images need to be
>> in voxel-for-voxel alignment first, so you may need to coregister and
>> reslice the T2 to match the T1 (or vice verca).
>>
>> Best regards,
>> -John
>>
>>
>> On 26 August 2015 at 19:06, Lili He <[log in to unmask]
>> <mailto:[log in to unmask]>> wrote:
>>
>> Dear SPM experts,
>> I am just wondering whether or not SPM supports multimodality
>> segmentation. I have both T1 and T2 brain images; could/how I use
>> both of them to possibly enhance the tissue segmentation?
>> Thank you,
>> Lili
>>
>>
>
>
|