What controls the information included during the 3D reconstruction of a CT scan?

The reconstruction of a 3D image from CT scan data is primarily influenced by the reconstruction algorithm. This algorithm determines how the data collected by the CT scanner is processed to create the final image. It utilizes mathematical techniques to convert the raw data from the detector into a three-dimensional representation, allowing for visualization of the internal structures of the scanned object.

While threshold settings can influence the visibility of certain structures by determining which pixel values are included in the final match, it is the reconstruction algorithm that fundamentally dictates how that data is interpreted and constructed into the 3D format. The algorithm defines the process of interpolation and filtering that is essential for achieving high-quality images and can significantly affect features such as resolution, artifacts, and overall image quality. Therefore, when discussing what controls the information included during the 3D reconstruction process, the key factor is indeed the reconstruction algorithm.