Mobius3D MobiusFX DoseLab TG-142 / DoseLab Pro MedPhys Files
MedPhys Files
   Login or Register
HomeDownloadsRegister
Downloads › ImageJ macro to determine the helical slice thickness of a CT scan
Toggle Content Main Menu
 Home Members options Search
Toggle Content User Info

Welcome Anonymous

Nickname
Password

Membership:
Latest: jackielam
New Today: 0
New Yesterday: 0
Overall: 964

People Online:
Members: 0
Visitors: 50
Total: 50
Who Is Where:
 Visitors:
01: External downloads
02: Downloads
03: External downloads
04: News
05: Downloads
06: External downloads
07: Downloads
08: External downloads
09: Downloads
10: Downloads
11: Downloads
12: External downloads
13: External downloads
14: Downloads
15: Home
16: Downloads
17: Downloads
18: Downloads
19: External downloads
20: Downloads
21: Downloads
22: Downloads
23: Downloads
24: Downloads
25: Downloads
26: Downloads
27: Downloads
28: External downloads
29: Downloads
30: External downloads
31: Downloads
32: External downloads
33: External downloads
34: External downloads
35: Downloads
36: Downloads
37: Downloads
38: Downloads
39: Home
40: Downloads
41: Downloads
42: Downloads
43: External downloads
44: External downloads
45: Downloads
46: External downloads
47: Downloads
48: News
49: Downloads
50: Home

Staff Online:

No staff members are online!
ImageJ macro to determine the helical slice thickness of a CT scan
Main | Details | Download Now | History | Statistics

Add your mirror to this download

Category Diagnostic Imaging
Submitted by dplatten
Author's Name
David Platten
Distributed with custom license file? No
Published
Fri Oct 08, 2010 10:12 am

An ImageJ macro that determines the slice thickness of a helical CT scan by analysing a directory of DICOM images from a helical scan through a thin gold disc phantom or very small metal bead.

The macro expects a directory of DICOM images from a helical scan run through a thin metal disc or a very small metal bead. The reconstruction interval should be around 1/10 of the slice thickness. For example, if the reconstructed slice thickness is 3 mm then you need to set the reconstruction interval to 0.3 mm.

The phantom can be a thin gold disc embedded in a Perspex rod, similar to the one that ImPACT uses. Alternatively the method may work by scanning through a small metal bead, provided that the bead is much smaller than the reconstructed slice thickness.

Calculates the FWHM by finding the bead or disc position then measuring the CT# of it. The FWHM is taken as the difference between min and max CT# values. Note - this may not be a correct assumption for your scan! Note - this will only work well if the contrast between the bead or disc CT # and background is high - use a very small bead / disc roi to help with this.
Rating Not rated
Popularity 1/5: Not popular
Downloads 194
Page views 4620

Download Now
Unless otherwise specified, all files are distributed under the MIT open source license for research and educational use only with no fitness guarantee.
Interactive software released under GNU GPL, Code Credits, Privacy Policy