[Mristudio-users] 3D ROI

[bin wang]

Dr Mori:
Thank you for the patience to answer, I will try as you say.
But there is still a question that I can't save it as "Binary Map" after
loading the mask image to RoiEditor, I must draw a ROI manually or using
other ways. I want to know that can I make the mask as a ROI directly, so
the ROIEditor can save it.
Best
bin

在 2011年2月27日 下午7:31，susumu mori <susumu at mri.jhu.edu>写道：

>
>
> 2011/2/27 bin wang <binwang87828 at gmail.com>
>
> Dr Mori:
>> I have two questions:
>> (1). If I want to create a 3D ROI, Must I draw the ROI in every slice in
>> ROIEditor manually?
>>
>
> If the structure of interest has clear contrast, you can use a region
> growing tool. For example the caudate in T1 has a good contrast. You can use
> 3D or slice-by-slice region growing tool to define it much easier than
> manual. When you are using DTI colormap, there is a color region growing
> tool to specify a region with the same color.
>
> If does not have clear contrast, you can first use the global threshold or
> region growing to define a tissue of interest. For example, if you are
> interested in a white matter structure, you can use FA>0.25. If you are
> interested in the cortex, you can use a threshold tool with T1. Please note
> that white matter structures and the cortex do not have clear contrast
> boundary from adjacent structures. Therefore the region growing or
> thresholding almost always leak to adjacent structures. After you do the
> global tissue segmentation, you can visit each slice and use manual ROI +
> AND operation to define the structure.
>
> If you get tired of defining a lot of ROIs without clear boundaries, please
> try our automated full-brain segmentation tools. You need to learn how to
> use DiffeoMap and RoiEditor. You can find manuals and videos in
> www.mristudio.org.
>
>
>
>> (2). I have a binary mask image(img/hdr), it is the calcarine regions of
>> the brain, I want to make a ROI of the region to track the fiber in this
>> region, and how can I do in ROIEditor or DTIstudio.
>>
>
> You can load it to RoiEditor as an ROI file and save as "Binary Map".
> Please refer to FAQ16 about Binary Map format.
>
>
>> Thanks in advance
>> Bin
>>
>> 在 2011年2月27日 上午12:10，susumu mori <susumu at mri.jhu.edu>写道：
>>
>> Yes, RoiEditor can draw 3D ROIs. Because the ROI drawing capability of
>>> DtiStudio is limited, I recommend to use RoiEditor. It is possible to create
>>> multiple 3D ROIs in RoiEditor and pass them DtiStudio for fiber tracking.
>>> Please refer to FAQ16 in https://www.mristudio.org/wiki/faq.
>>>
>>> 2011/2/26 bin wang <binwang87828 at gmail.com>
>>>
>>>>  Hello DTIstudio user:
>>>> I am a new DTIStudio user, I want to know if the ROIEditor can drawing a
>>>> 3D ROI, and how to operation?
>>>> bin
>>>>
>>>> --
>>>> ++++++++++++++++++++++++++++++
>>>> Bin Wang
>>>> major：apply psychology
>>>> South China Normal University
>>>> Zhongshan Avenue West 55, Tianhe District
>>>> Guangzhou 510631
>>>> P. R. China
>>>> Tel: 13416157706
>>>> ++++++++++++++++++++++++++++++
>>>> 王斌
>>>> 华南师范大学
>>>> 应用心理专业
>>>> * 地址：
>>>> *广东省 广州市 天河区 中山大道 西55号
>>>> 邮编：510631
>>>> 电话： 13416157706 (手机, 广州)
>>>> +++++++++++++++++++++++++
>>>>
>>>>
>>>> _______________________________________________
>>>> mristudio-users mailing list
>>>> mristudio-users at mristudio.org
>>>> http://lists.mristudio.org/mailman/listinfo/
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>>>> mristudio-users-unsubscribe at mristudio.org
>>>>
>>>>
>>>
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>>
>>
>> --
>> ++++++++++++++++++++++++++++++
>> Bin Wang
>> major：apply psychology
>> South China Normal University
>> Zhongshan Avenue West 55, Tianhe District
>> Guangzhou 510631
>> P. R. China
>> Tel: 13416157706
>> ++++++++++++++++++++++++++++++
>> 王斌
>> 华南师范大学
>> 应用心理专业
>> * 地址：
>> *广东省 广州市 天河区 中山大道 西55号
>> 邮编：510631
>> 电话： 13416157706 (手机, 广州)
>> +++++++++++++++++++++++++
>>
>>
>> _______________________________________________
>> mristudio-users mailing list
>> mristudio-users at mristudio.org
>> http://lists.mristudio.org/mailman/listinfo/
>> Unsubscribe, send a blank email to:
>> mristudio-users-unsubscribe at mristudio.org
>>
>>
>
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>


-- 
++++++++++++++++++++++++++++++
Bin Wang
major：apply psychology
South China Normal University
Zhongshan Avenue West 55, Tianhe District
Guangzhou 510631
P. R. China
Tel: 13416157706
++++++++++++++++++++++++++++++
王斌
华南师范大学
应用心理专业
* 地址：
*广东省 广州市 天河区 中山大道 西55号
邮编：510631
电话： 13416157706 (手机, 广州)
+++++++++++++++++++++++++
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