Korean Journal of Radiology

The Korean Society of Radiology (대한영상의학회)
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Photon-Counting Computed Tomography: Experience in Musculoskeletal Imaging

  • Jan-Peter Grunz (Department of Diagnostic and Interventional Radiology, University Hospital Wurzburg) ;
  • Henner Huflage (Department of Diagnostic and Interventional Radiology, University Hospital Wurzburg)
  • Received : 2024.01.27
  • Accepted : 2024.04.19
  • Published : 2024.07.01
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Abstract

Since the emergence of the first photon-counting computed tomography (PCCT) system in late 2021, its advantages and a wide range of applications in all fields of radiology have been demonstrated. Compared to standard energy-integrating detector-CT, PCCT allows for superior geometric dose efficiency in every examination. While this aspect by itself is groundbreaking, the advantages do not stop there. PCCT facilitates an unprecedented combination of ultra-high-resolution imaging without dose penalty or field-of-view restrictions, detector-based elimination of electronic noise, and ubiquitous multi-energy spectral information. Considering the high demands of orthopedic imaging for the visualization of minuscule details while simultaneously covering large portions of skeletal and soft tissue anatomy, no subspecialty may benefit more from this novel detector technology than musculoskeletal radiology. Deeply rooted in experimental and clinical research, this review article aims to provide an introduction to the cosmos of PCCT, explain its technical basics, and highlight the most promising applications for patient care, while also mentioning current limitations that need to be overcome.

Keywords

Acknowledgement

Jan-Peter Grunz receives financial research support from the Interdisciplinary Center of Clinical Research Wurzburg (grant number Z-3BC/02). The department of radiology at University Hospital Wurzburg receives ongoing financial research support from Siemens Healthineers.

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