Image Distortion after convert axial CT to sagittal view

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Jiun Yu Weng
Jiun Yu Weng 2023-4-28
评论： Rik 2023-5-2
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?

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回答（1 个）

Simon Chan
Simon Chan 2023-4-28
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])
  2 个评论
Rik
Rik 2023-5-2
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.

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