How can I merge different DICOM view in ones?

[Juicy]

As far as I am aware there is no effective way of doing this on 3D Slicer. Basically, you have to acquire the scan in high resolution (minimal field of view (FOV) and small slice thickness/interval) at the point of acquisition i.e. when taking the CT scan. Depending on the acquisition parameters used you may be able to reconstruct the CT scan with smaller slice thicknesses/intervals or FOV if you have access to the original CT machine and the scan is still on the machine (if it was taken recently). Have a read of these related posts:

Combining volumes - what am I missing?

In general, these multiple low-resolution acquisitions are not well suited for any 3D processing, so the best would be to acquire proper 3D volume, with as isotropic spacing (cubic voxel shape) as possible. You may try to find toolkits that can create an isotropic super-resolution image from multiple low-resolution sweeps, but this is a difficult image reconstruction problem, so there are no standard solutions. Have a look at this post Import volume by projections for info on a toolkit that mig…