image-registration

I am using image registration toolbox to register two 3D images. I register the moving image to the fixed image. I use "imregtform" to save tform. tform = imregtform(moving,fixed,transformType,optimizer,metric) for example this is my 'tform': 1.0235 0.0022 -0.0607 0 -0.0276 1.0002 0.0089 0 -0.0170 -0.0141 1.1685 0 12.8777 5.0311 -70.0325 1.0000 then I use 'Imwarp' to transfer moving image to the fixed image. In my code it is, nii=load_untouch_nii(['mypath image.nii' ]); I = nii.img; dii=nii.hdr.dime.pixdim(2:4); Rfixed=imref3d(size(I),dii(2),dii(1),dii(3)); timg= imwarp(I, Rfixed, tform,

I have two MR acquisitions where the first one is a 3D acquisition (1x1x1 mm3) and the second is a 2D acquisition (2.24 x 2.24 x 5.00 mm, axial slices). The high resolution dataset is a full head 3D acquisition that gives 176 slices if resliced in the axial direction (orientation was initially saggital in the acquisition). The 2D acquisition only contains 3 axial slices that were selected to target specific regions in the brain and were acquired continuously. Is it possible to know, which slices in the 3D high resolution dataset correspond accurately to the 3 slices in the 2D dataset assuming