What is the term for the 3D technique that includes all acquired voxel information in the reconstructed model with adjustments to its opacity?

The term that describes the 3D technique incorporating all acquired voxel information into the reconstructed model while adjusting its opacity is volume rendering. This method allows for the visualization of complex structures within the volume data, making it particularly useful in interpreting and analyzing CT scans.

Volume rendering utilizes various algorithms to create images from 3D voxel data, where each voxel can contribute to the final image based on its intensity and opacity. By adjusting opacity, volume rendering can provide depth cues and highlight specific structures while allowing for thorough examination of the underlying anatomy.

Other options do not encompass this specific method as effectively. Image reconstruction typically refers to the process of creating a 2D image from acquired projection data, whereas image filtration involves modifying existing images to enhance appearances or highlight features. Spatial frequency analysis deals with the frequency content of images and is more related to image processing than to visualizing 3D data sets directly.