필터 지우기
필터 지우기

Image Distortion after convert axial CT to sagittal view

조회 수: 8 (최근 30일)
Jiun Yu Weng
Jiun Yu Weng 2023년 4월 28일
댓글: Rik 2023년 5월 2일
I have a CT image (512*512*446)
DICOM info is unfer below
  1. Pixel spacing: 0.4648, 0.4648
  2. Spacing Between Slices: 0.8
  3. SliceThickness: 1
I use squeeze changing tha axial CT to sagittal view, while image distort in the sagittal plane (left).
It should be as same as what I look the sagittal view on Radiant (right).
You can see the vertebral body is elongated in the image.
Is it because of the difference between pixel spacing and slice thickness ?
Or is there any method to avoid this?

답변 (1개)

Simon Chan
Simon Chan 2023년 4월 28일
The images are not isotropic and hence it is distorted.
Use function imresize after you reconstruct the image from axial to sagittal plane.
J = imresize(I,[446*1/0.4648, 512])
  댓글 수: 2
Jiun Yu Weng
Jiun Yu Weng 2023년 5월 2일
Thanks a lot !
I get the normal CT now.
Rik
Rik 2023년 5월 2일
Instead of resizing the image, you can also use image directly to set the XData and YData scales separately. It is a bit more work on your part, but you don't run the risk of introducing artifacts in the resizing.

댓글을 달려면 로그인하십시오.

태그

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by