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DSI Studio Workshop - Shared screen with speaker view
Smitha
07:58
Which button is used to draw the lines
Chris Rockwell
08:11
ctrl + s
Smitha
08:25
Thanks
Smitha
13:38
how can we take the coronal image in the left window
Zeke Gleichgerrcht
14:00
from the little icons at the bottom left corner
Zeke Gleichgerrcht
14:04
buttons*
Smitha
14:15
thanks
Smitha
29:53
Whether we have to do Eddy correction for every sample
Zeke Gleichgerrcht
34:23
what does better spatial resolution mean for diffusion, however? higher B value?
Jing Xu
35:18
Could you comment a bit on tracking with patients, such as brains with tumors and lesions?
Smitha
35:19
hope that we can increase the resolution using DSI studio or we have to take care during the acquisition
Jing Xu
36:51
Thank you!
Smitha
36:57
Thanks
Ricardo Morais
37:30
if I only got the mosaic DTI file from a siemens scan. is it enough to do a dti analysis?
Jing Xu
43:06
How do you decide the number of tracts?
Rebecca Wilkes Roth
48:58
Any idea why my ROIs aren't showing up in the center window? I have them checked and labeled as ROIs.
Duricy, Erin Terese
51:51
can you repeat how you selected all but the ROI?
Zeke Gleichgerrcht
52:06
so if you want to see JUST the tracts that start in V1 left and end in V1 right and vice versa, making both "seeds" wont work bc they're grey matter?
Rebecca Wilkes Roth
52:10
Got it!
Mengfei Cai
56:40
then if I'd like to identify the tracts connecting cerebellum and cortex, what will be the rationale? could you demonstrate it very briefly , so that we can see a practical example~
Linda Robayo
57:31
can you please show again how you converted the tract to an ROI?
Smitha
57:31
Can we use the template image used to create the MNI tract incase of our analysis too
Linda Robayo
59:53
Thank you!
Rebecca Wilkes Roth
01:00:10
Which region did you use as an ROA when assigning the right and left V1?
Smitha
01:00:44
Thanks
Ricardo Morais
01:01:44
a bit off topic but if the dataset as been exported "anonymized" will it prevent to correctly do a dti analysis due to data loss ? my tracts seem wrong (distorted)
Rebecca Wilkes Roth
01:02:43
Thanks.
Mengfei Cai
01:02:47
can I confirm one point: the selected ROI was in MNI space, when doing the fiber tracking in native DWI space, was the ROI registered into native DWI space by default?
Hengenius, James B
01:02:53
CLI question: Do the old parameter flags (like --seed_count for example) still work? Or can we only use the --parameter_id now? I worry my code will be harder to interpret for people who reference it in the future if they only see a --parameter_id string and not the parameter values.
Yasaman Bagherzadeh
01:03:06
May I ask a question about my data?
Smitha
01:04:36
last class you were talking about different ways to do tractography. How can we understand which method we should follow in our study
Fran Gómez
01:05:15
Where can we see the course recordings
Hengenius, James B
01:05:21
Thanks!
Rebecca Wilkes Roth
01:05:23
Do you typically use 30 and 200 for min and max length?
Yasaman Bagherzadeh
01:05:37
May I share my screen? I wanna know what kind of noise it is?
Ricardo Morais
01:06:05
if the dti acquisition isn't isometric , can it still be used to do a dti tract analysis? (or does it loose to much validity )
Fran Gómez
01:06:27
Thanks
Ricardo Morais
01:08:26
tkx
Rebecca Wilkes Roth
01:08:51
Will you briefly review how to remove seemingly spurious tracks when we used V1 left and right as ROIs?
Yasaman Bagherzadeh
01:12:17
I have just uploaded my data
Ricardo Morais
01:12:23
for a specific problem in a dataset can we upload the data to get some help ?
Rebecca Wilkes Roth
01:12:45
How did you invert it?
Iyad Ba Gari
01:13:33
How can we do automated fiber tracking and get tractometry value?
Rebecca Wilkes Roth
01:14:17
thank you!
Ricardo Morais
01:14:20
tkx that will be very helpful
Linda Robayo
01:14:29
can I share my screen for a moment? I have data from a chronic TBI subject and I see some abnormal tracts.
Iyad Ba Gari
01:15:20
Thank you
Mengfei Cai
01:16:34
still following my previous question: although we can use two ROI (cortex and cerebellum) to identify the connecting tracts, what if we use -seed- (eg. cortex) and -terminative- (eg cerebellum) ? will the identified tracts be (almost ) the same?
Rebecca Wilkes Roth
01:17:19
Where is the MNI file you loaded?
Smitha
01:17:23
Now Frank showed the automatic tractography. Can we tract arcuate fasciculus left and right using this method. Can we publish while we use automatic tractography
Ricardo Morais
01:17:40
can i also share the screen?
Ricardo Morais
01:22:37
just sent the data through dropbox
Mengfei Cai
01:24:58
if I have one ROI from the native T1 space, and take it as a ROI, for example, if I want to identify the tracts (fiber tracking )connecting to my native ROI, shall I just open my native T1 ROI file and do the following suggested step? I assume, it will do a linear registration from native T1 to native DWI space, right?
Smitha
01:26:31
could you show once again how the b value shown in DSIstudio
Linda Robayo
01:31:30
I have an in-plane resolution of 1.5 mm and slice thickness of 3 mm. Should I resample to isotropic 1.5, 1 or 2 mm?
Linda Robayo
01:33:53
Thank you!
Yasaman Bagherzadeh
01:34:03
Thank you
Ricardo Morais
01:34:18
thank you