Hi Ping, Sorry: I missed that. I don't believe that AK/RK are computable with thiis model. Regarding your results with standard DKI, I believe that the newly introduced Gibbs un-ringing methods should help with that: https://github.com/nipy/dipy/blob/master/doc/examples/denoise_gibbs.py Cheers, Ariel On Mon, Aug 19, 2019 at 7:17 AM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

Hi Ariel,

Thank you for your reply.

I wonder if radial kurtosis (RK) and axial kurtosis (AK) can be derived from MSDKI model as the same as standard DKI method. We got poor results of RK and AK using standard DKI, lots of signal-void voxels (see the attached).

Thanks. Ping

On Mon, Aug 19, 2019 at 8:43 AM Ariel Rokem <arokem@gmail.com> wrote:

...

Hi Ping,

Thanks for your email. There is an example of usage of that model here: https://github.com/nipy/dipy/blob/master/doc/examples/reconst_msdki.py

Cheers,

Ariel

On Thu, Aug 15, 2019 at 2:38 PM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

...

HI DIPY Developers / Users,

I would like to know how to calculate DKI parameters, e.g. axial kurtosis, radial kurtosis, KFA, using the newly MSDI method.

Thanks.

Ping _______________________________________________ Dipy mailing list -- dipy@python.org To unsubscribe send an email to dipy-leave@python.org https://mail.python.org/mailman3/lists/dipy.python.org/

No - sorry - I am not sure what to do about this. Maybe Rafael or others can weigh in here? Cheers, Ariel On Fri, Aug 23, 2019 at 7:00 AM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

Hi Ariel,

I've tried the newly Gibbs un-ringing method, but it doesn't seem to work (see the attached).

Any suggestions?

Thanks.

ping

On Wed, Aug 21, 2019 at 12:10 PM Ariel Rokem <arokem@gmail.com> wrote:

...

Hi Ping,

Sorry: I missed that. I don't believe that AK/RK are computable with thiis model.

Regarding your results with standard DKI, I believe that the newly introduced Gibbs un-ringing methods should help with that: https://github.com/nipy/dipy/blob/master/doc/examples/denoise_gibbs.py

Cheers,

Ariel

On Mon, Aug 19, 2019 at 7:17 AM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

...

Hi Ariel,

Thank you for your reply.

I wonder if radial kurtosis (RK) and axial kurtosis (AK) can be derived from MSDKI model as the same as standard DKI method. We got poor results of RK and AK using standard DKI, lots of signal-void voxels (see the attached).

Thanks. Ping

On Mon, Aug 19, 2019 at 8:43 AM Ariel Rokem <arokem@gmail.com> wrote:

...

Hi Ping,

Thanks for your email. There is an example of usage of that model here: https://github.com/nipy/dipy/blob/master/doc/examples/reconst_msdki.py

Cheers,

Ariel

On Thu, Aug 15, 2019 at 2:38 PM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

...

HI DIPY Developers / Users,

I would like to know how to calculate DKI parameters, e.g. axial kurtosis, radial kurtosis, KFA, using the newly MSDI method.

Thanks.

Ping _______________________________________________ Dipy mailing list -- dipy@python.org To unsubscribe send an email to dipy-leave@python.org https://mail.python.org/mailman3/lists/dipy.python.org/

Hi Ping, Sorry: I missed that. I don't believe that AK/RK are computable with thiis model. Regarding your results with standard DKI, I believe that the newly introduced Gibbs un-ringing methods should help with that: https://github.com/nipy/dipy/blob/master/doc/examples/denoise_gibbs.py Cheers, Ariel On Mon, Aug 19, 2019 at 7:17 AM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

Hi Ariel,

Thank you for your reply.

I wonder if radial kurtosis (RK) and axial kurtosis (AK) can be derived from MSDKI model as the same as standard DKI method. We got poor results of RK and AK using standard DKI, lots of signal-void voxels (see the attached).

Thanks. Ping

On Mon, Aug 19, 2019 at 8:43 AM Ariel Rokem <arokem@gmail.com> wrote:

...

Hi Ping,

Thanks for your email. There is an example of usage of that model here: https://github.com/nipy/dipy/blob/master/doc/examples/reconst_msdki.py

Cheers,

Ariel

On Thu, Aug 15, 2019 at 2:38 PM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

...

HI DIPY Developers / Users,

I would like to know how to calculate DKI parameters, e.g. axial kurtosis, radial kurtosis, KFA, using the newly MSDI method.

Thanks.

Ping _______________________________________________ Dipy mailing list -- dipy@python.org To unsubscribe send an email to dipy-leave@python.org https://mail.python.org/mailman3/lists/dipy.python.org/

No - sorry - I am not sure what to do about this. Maybe Rafael or others can weigh in here? Cheers, Ariel On Fri, Aug 23, 2019 at 7:00 AM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

Hi Ariel,

I've tried the newly Gibbs un-ringing method, but it doesn't seem to work (see the attached).

Any suggestions?

Thanks.

ping

On Wed, Aug 21, 2019 at 12:10 PM Ariel Rokem <arokem@gmail.com> wrote:

...

Hi Ping,

Sorry: I missed that. I don't believe that AK/RK are computable with thiis model.

Regarding your results with standard DKI, I believe that the newly introduced Gibbs un-ringing methods should help with that: https://github.com/nipy/dipy/blob/master/doc/examples/denoise_gibbs.py

Cheers,

Ariel

On Mon, Aug 19, 2019 at 7:17 AM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

...

Hi Ariel,

Thank you for your reply.

I wonder if radial kurtosis (RK) and axial kurtosis (AK) can be derived from MSDKI model as the same as standard DKI method. We got poor results of RK and AK using standard DKI, lots of signal-void voxels (see the attached).

Thanks. Ping

On Mon, Aug 19, 2019 at 8:43 AM Ariel Rokem <arokem@gmail.com> wrote:

...

Hi Ping,

Thanks for your email. There is an example of usage of that model here: https://github.com/nipy/dipy/blob/master/doc/examples/reconst_msdki.py

Cheers,

Ariel

On Thu, Aug 15, 2019 at 2:38 PM Ping-Hong Yeh <pinghongyeh@gmail.com> wrote:

...

HI DIPY Developers / Users,

I would like to know how to calculate DKI parameters, e.g. axial kurtosis, radial kurtosis, KFA, using the newly MSDI method.

Thanks.

Ping _______________________________________________ Dipy mailing list -- dipy@python.org To unsubscribe send an email to dipy-leave@python.org https://mail.python.org/mailman3/lists/dipy.python.org/