Operating system: Windows 7
Slicer version: 4.8.1
I am working with MRI data (.nii or NIFTI format, 8 slices) and trying to calculate the volume of a particular segment in each slice where it appears. For each slice, I am using the segment editor to make a segment for the area of interest (using threshold for masking and then paint), exporting it to a labelmap, and then using model maker to make a model of that label. From there, I can view the volume under the Models menu, under “Information”.
I am wondering if/how 3D slicer takes into account the slice thickness (specified by the DICOM header in the original DICOM directory) when performing this volume calculation, and if this slice-by-slice method will be an accurate way to calculate the entire volume (i.e. does it interpolate between slices when calculating the volume, or does it only calculate the volume for the specified slice?)
Any information on this would be fantastic! Thank you.