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help > Problem with EV quantification of WMH
Jul 1, 2016 03:07 PM | Caterina Meglio
Problem with EV quantification of WMH
I noticed that my images have an absolute value between 0 and 1600
. I multiplied the originals images for 5, 10 and 15 . the results
are satisfactory:
x5
EV: 258.732681
EV-Deep: 12.440582
EV-Periventricular: 246.292099
x10
EV: 511.133234
EV-Deep: 39.565074
EV-Periventricular: 471.568160
x15
EV: 504.888690
EV-Deep: 39.277380
EV-Periventricular: 465.611310
there isn't big difference using images for 5, 10 and 15. do you know why? Do you know what is the best number to do the multiplication?
I also converted the same multiplied images by int to float 32bit, and in this case the text file RFREG_ev gives all values "Nan". Do you know why?
Thank you for your help.
x5
EV: 258.732681
EV-Deep: 12.440582
EV-Periventricular: 246.292099
x10
EV: 511.133234
EV-Deep: 39.565074
EV-Periventricular: 471.568160
x15
EV: 504.888690
EV-Deep: 39.277380
EV-Periventricular: 465.611310
there isn't big difference using images for 5, 10 and 15. do you know why? Do you know what is the best number to do the multiplication?
I also converted the same multiplied images by int to float 32bit, and in this case the text file RFREG_ev gives all values "Nan". Do you know why?
Thank you for your help.
Threaded View
| Title | Author | Date |
|---|---|---|
| christopher lai | Jul 2, 2015 | |
| Ganesh Chand | Sep 6, 2016 | |
| Vamsi Ithapu | Sep 11, 2016 | |
| Ganesh Chand | Sep 13, 2016 | |
| Vamsi Ithapu | Sep 16, 2016 | |
| Caterina Meglio | Jun 28, 2016 | |
| Vamsi Ithapu | Jun 28, 2016 | |
| Caterina Meglio | Jun 28, 2016 | |
| Vamsi Ithapu | Jun 28, 2016 | |
| Caterina Meglio | Jul 1, 2016 | |
| Vamsi Ithapu | Jul 5, 2016 | |
| Vamsi Ithapu | Jul 22, 2015 | |
| Anita Ongky | Jul 23, 2015 | |
| Vamsi Ithapu | Jul 25, 2015 | |
| Anita Ongky | Jul 28, 2015 | |
| Vamsi Ithapu | Aug 5, 2015 | |
| Anita Ongky | Aug 8, 2015 | |
| Vikas Singh | Jul 30, 2015 | |
| Anita Ongky | Jul 23, 2015 | |
| Vikas Singh | Jul 3, 2015 | |