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: PTOnly
New Today: 0
New Yesterday: 0
Overall: 974

People Online:
Members: 0
Visitors: 27
Total: 27
Who Is Where:
 Visitors:
01: Downloads
02: External downloads
03: Downloads
04: Downloads
05: Home
06: Downloads
07: Downloads
08: Downloads
09: Home
10: Downloads
11: Home
12: External downloads
13: External downloads
14: External downloads
15: External downloads
16: Downloads
17: Downloads
18: Downloads
19: Downloads
20: External downloads
21: My Account
22: Home
23: Home
24: Downloads
25: Downloads
26: Downloads
27: 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 202
Page views 4836

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