What does multiplanar reconstruction (MPR) do in imaging?

• A. It enhances contrast in a single plane
• B. It creates volume-rendered 3D images
• C. The reconstruction of raw data into images when imported into viewing software to create three anatomic planes of the body
• D. It reduces the resolution

Answer: (C)

Multiplanar reconstruction takes the volumetric imaging dataset from CT or MRI and reformats it to generate 2D images in different anatomical planes. By reformatting the same stack of voxels, the software can produce axial, sagittal, and coronal views (and oblique orientations), letting you look at the same structure from multiple angles without needing new scans. This is why it’s described as reconstructing raw data into images to create three planes of the body. It isn’t about boosting contrast in one plane, nor about creating volume-rendered 3D images, and it doesn’t inherently reduce resolution (though interpolation can occur when new planes are created).