Advances in photon-counting CT for metal implant artifact reduction:techniques and clinical applications
QI Yefan
ZHANG Qing
CHEN Bei
LUO Song
Abstract：Metal implants have been widely used in various surgical procedures.These metal implants generate artifacts during CT examinations,which can compromise the assessment of surrounding tissues such as muscles and bones.In clinical practice,various reconstruction and post-processing techniques are commonly employed to reduce the impact of metal artifacts on lesion evaluation.In recent years,photon-counting computed tomography(PCCT),with its technical characteristics such as high spatial resolution and multi-energy bin capability,has demonstrated distinct advantages in metal artifact reduction.This paper briefly outlines the principles and advantages of PCCT,introduces the main metal artifact reduction techniques currently available,and reviews the recent progress of its clinical applications in the musculoskeletal system,cardiovascular and cerebrovascular system,head and neck,and nervous system.
Keywords：Photon-counting detectorMetal artifact reductionMetal internal fixationTomographyX-ray computed
Publication Date：2025-11-15
Online Publishing Date：2025-12-15(First online date of this platform, not the publication date of the document)
Pages：6( 718-722,727 )