reviewRadiologyJan 31, 2023GREEN OA

Deep Learning Image Reconstruction for CT: Technical Principles and Clinical Prospects

Stanford University · Cardiovascular Institute of the South · +4 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Filtered back projection (FBP) has been the standard CT image reconstruction method for 4 decades. A simple, fast, and reliable technique, FBP has delivered high-quality images in several clinical applications. However, with faster and more advanced CT scanners, FBP has become increasingly obsolete. Higher image noise and more artifacts are especially noticeable in lower-dose CT imaging using FBP. This performance gap was partly addressed by model-based iterative reconstruction (MBIR). Yet, its "plastic" image appearance and long reconstruction times have limited widespread application. Hybrid iterative reconstruction partially addressed these limitations by blending FBP with MBIR and is currently the…

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