Dear Anil,

Unfortunately I don't have any documentation on that. I think the only way to 
get this information is to look at the code. The link I sent you already is 
probably a good place to start.


Best,

Peter



________________________________
Von: Shetty, Anil <ashe...@bcm.edu>
Gesendet: Dienstag, 29. Oktober 2019 16:32
An: Neher, Peter
Betreff: RE: [mitk-users] IVIM module

Good morning, Peter:

I have used IVIM module in MITK diffusion for analyzing placenta. I have been 
able to compare 6 different ways provided in your drop down menu for “choose 
methods”.

I was wondering if you would kindly provide me with methodology behind each of 
this method. In particular, I am interested  in type of algorithm 
(Lavenberg-Marquardt) etc. that is being used and if any boundary conditions 
used in the code.
The 6 ways that I have used are:


1.   3 parameter fit

2.   Fit D & f with fixed D* value

3.   Fit D & f (high b), then fit D*

a.   b > 80

b.   b > 250

4.   Linearly fit D and f (high b), the fit D*

a.   b > 80

b.   b > 250

I need some write up on methods 1, 2, 3 and 4 and any conditions or boundary 
values set up in using those models.

Greatly appreciate your help.


Anil N. Shetty, Ph.D.
Associate Professor
Baylor College of Medicine
Department of Obstetrics and Gynecology
Pavilion for women
Texas Children's Hospital
6651 Main Street/Suite F1040-18
Houston, TX 77030

832-826-7312 (Direct)
832-825-9351 (Fax)






From: Neher, Peter [mailto:p.ne...@dkfz-heidelberg.de]
Sent: Friday, September 27, 2019 2:40 AM
To: Shetty, Anil <ashe...@bcm.edu>
Subject: AW: [mitk-users] IVIM module


There are no dedicated builds for Windows 7 but the Windows 10 installers 
should also work.



Peter



________________________________
Von: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Gesendet: Donnerstag, 26. September 2019 21:55
An: Neher, Peter
Betreff: RE: [mitk-users] IVIM module

Hi Peter:

Do you have link for windows 7?  The link you sent are for Windows 10.

Thanks

anil

From: Neher, Peter [mailto:p.ne...@dkfz-heidelberg.de]
Sent: Thursday, September 26, 2019 2:06 AM
To: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Subject: AW: [mitk-users] IVIM module


This link is not working?

ftp://ftp.dkfz-heidelberg.de/outgoing/MitkDiffusion/2019.09.26/<https://urldefense.proofpoint.com/v2/url?u=ftp-3A__ftp.dkfz-2Dheidelberg.de_outgoing_MitkDiffusion_2019.09.26_&d=DwMFAw&c=ZQs-KZ8oxEw0p81sqgiaRA&r=xunJOi6tH8YusoQF3t9EDA&m=ifEqsVfzliQFbnYQFSD4Q1MBaHnc_1Q8FQ3xOPhNS2I&s=nHa3qPMwJynHwv6NAjus3YxRWnqfTsEh1GMmSudJzaY&e=>



________________________________
Von: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Gesendet: Mittwoch, 25. September 2019 23:31
An: Neher, Peter
Betreff: RE: [mitk-users] IVIM module

Hi Peter:

I am trying to download your latest version for MITKDiffusion  on windows 7 but 
not able to. Can you provide us with a good link to download the same please?

Thank you,

Anil

From: Neher, Peter [mailto:p.ne...@dkfz-heidelberg.de]
Sent: Tuesday, September 24, 2019 1:45 AM
To: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>; 
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>; 
Maier-Hein, Klaus H. 
<k.maier-h...@dkfz-heidelberg.de<mailto:k.maier-h...@dkfz-heidelberg.de>>
Subject: AW: [mitk-users] IVIM module


I'm not sure about that. I know that quite some papers were published using the 
IVIM methods implemented in MITK, but I don't know about a comparative study of 
the different fits. Do you know about anything like that, Klaus?



Peter



________________________________
Von: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Gesendet: Montag, 23. September 2019 17:15
An: Neher, Peter; 
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
Betreff: RE: [mitk-users] IVIM module

Thank you very much Peter, for clarification. I do appreciate your timely 
response.

Has there been any study done to compare different methods you propose in IVIM 
analysis? How do you determine which method provides the best estimation of 
D/D*/f?  I mean between (3 parameter fit vs. fixed D* then D and f etc,.)

Thank you for your help

Regards,

Anil N. Shetty, Ph.D.
Associate Professor
Baylor College of Medicine
Department of Obstetrics and Gynecology
Pavilion for women
Texas Children's Hospital
6651 Main Street/Suite F1040-18
Houston, TX 77030

832-826-7312 (Direct)
832-825-9351 (Fax)







From: Neher, Peter [mailto:p.ne...@dkfz-heidelberg.de]
Sent: Monday, September 23, 2019 2:05 AM
To: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>; 
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
Subject: AW: [mitk-users] IVIM module

***CAUTION:*** This email is not from a BCM Source. Only click links or open 
attachments you know are safe.
________________________________

Dear Anil,



only the weighted measurements are plotted, i.e. b>0.



But anyway, only the scale, so the positions on the y-axis, is logarithmic, no 
the shown values. So you plot ln(s/s0), but the axis label still shows s/s0. 
Just a matter of visualization.



Peter



________________________________
Von: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Gesendet: Samstag, 21. September 2019 12:59
An: Neher, Peter
Betreff: Re: [mitk-users] IVIM module

Hi Peter:

Thank you for your help with IVIM module. BTW, I have slight confusion here. If 
the signal is plotted with "Ln(S/S0)"on the y-axis, the  first point at b =0 
should be =0, since S/S0 =1  at b =0.  How do you reverse it to show max on 
y-axis =1 at b =0 in your plot?

S = S0exp(-bD)    mono-exponential at  low b-values.

Ln(S/S0) = -bD
>From plot at b =0, L(s/S0) = 0
Am I missing something?

Thanks

Anil



________________________________
From: Neher, Peter 
<p.ne...@dkfz-heidelberg.de<mailto:p.ne...@dkfz-heidelberg.de>>
Sent: Friday, September 20, 2019 02:14 AM
To: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>; 
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net> 
<mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>>
Subject: AW: [mitk-users] IVIM module

Or rather S/S_0, but the scale is logarithmic.

________________________________________
Von: Neher, Peter 
<p.ne...@dkfz-heidelberg.de<mailto:p.ne...@dkfz-heidelberg.de>>
Gesendet: Freitag, 20. September 2019 08:56
An: Shetty, Anil; 
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
Betreff: Re: [mitk-users] IVIM module

ln(s)

I will see to it that this will be indicated in the plot.

Peter

________________________________________
Von: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Gesendet: Donnerstag, 19. September 2019 17:27
An: Neher, Peter
Betreff: RE: [mitk-users] IVIM module

Hi Peter:

One more thing.

The plot in figure, is that "Signal vs b"  or "Ln(Signal) vs b" ?

Thanks

-Anil

-----Original Message-----
From: Neher, Peter [mailto:p.ne...@dkfz-heidelberg.de]
Sent: Thursday, September 19, 2019 8:47 AM
To: Shetty, Anil <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>; 
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>; 
Götz, Michael <m.go...@dkfz-heidelberg.de<mailto:m.go...@dkfz-heidelberg.de>>; 
Jäger, Paul <p.jae...@dkfz-heidelberg.de<mailto:p.jae...@dkfz-heidelberg.de>>
Subject: AW: [mitk-users] IVIM module

Dear Anil,

If I look at the code, the method actually does a 3-parameter LM fit:
https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_MIC-2DDKFZ_MITK-2DDiffusion_blob_master_Modules_DiffusionCore_Algorithms_Reconstruction_itkDiffusionIntravoxelIncoherentMotionReconstructionImageFilter.cpp-23L447&d=DwIFAw&c=ZQs-KZ8oxEw0p81sqgiaRA&r=xunJOi6tH8YusoQF3t9EDA&m=RsPQxKza4BsCqlriISy6MlMZ1ZZNLO8-ysVRB2b_koY&s=7rs0ek8jQUqY_tKDw4FmWBioHKPqbVI2nz7tkl14xyM&e=

I am not sure where the output on the clipboard originates from.

Do you know anything about this, Michael & Paul?

Peter

________________________________________
Von: ashetty <ashe...@bcm.edu<mailto:ashe...@bcm.edu>>
Gesendet: Mittwoch, 18. September 2019 18:55
An: mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
Betreff: [mitk-users] IVIM module

I have been using IVIM module to determine f, D and D* using 3-parameter fit.
However, when I copy measurement points to excel, I see that it does first 
linear fit of D and f at high b, and then, fits for D*.  Should this not do
3 parameters simultaneously using L-M method when I choose option of 
3-parameter fit?

Appreciate your answer.

_anil



--
Sent from: 
https://urldefense.proofpoint.com/v2/url?u=http-3A__mitk-2Dusers.1123740.n5.nabble.com_&d=DwIFAw&c=ZQs-KZ8oxEw0p81sqgiaRA&r=xunJOi6tH8YusoQF3t9EDA&m=RsPQxKza4BsCqlriISy6MlMZ1ZZNLO8-ysVRB2b_koY&s=tRN1QFquy_aNi79SNJJDlv8XtYG0IK5q3-k1LYQnzU8&e=


_______________________________________________
mitk-users mailing list
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.sourceforge.net_lists_listinfo_mitk-2Dusers&d=DwIFAw&c=ZQs-KZ8oxEw0p81sqgiaRA&r=xunJOi6tH8YusoQF3t9EDA&m=RsPQxKza4BsCqlriISy6MlMZ1ZZNLO8-ysVRB2b_koY&s=8d-vo07FfYJigUbg-VF3z8WO1PTdEs1EifBqZ_xf17Q&e=


_______________________________________________
mitk-users mailing list
mitk-users@lists.sourceforge.net<mailto:mitk-users@lists.sourceforge.net>
https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.sourceforge.net_lists_listinfo_mitk-2Dusers&d=DwIFAw&c=ZQs-KZ8oxEw0p81sqgiaRA&r=xunJOi6tH8YusoQF3t9EDA&m=WM7OiABjV744a2ejcTzW2Pt0Gmq5WD9nHV3cdqDDLyk&s=G7JXaFm6cQSZxS-18uPRBs0jnIqcc__a6vvLb77tpco&e=
_______________________________________________
mitk-users mailing list
mitk-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/mitk-users

Reply via email to