TY - JOUR
T1 - Photon-counting CT
T2 - Technical principles and clinical prospects
AU - Willemink, Martin J.
AU - Persson, Mats
AU - Pourmorteza, Amir
AU - Pelc, Norbert J.
AU - Fleischmann, Dominik
N1 - Publisher Copyright:
© RSNA, 2018.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Photon-counting CT is an emerging technology with the potential to dramatically change clinical CT. Photon-counting CT uses new energy-resolving x-ray detectors, with mechanisms that differ substantially from those of conventional energy-integrating detectors. Photon-counting CT detectors count the number of incoming photons and measure photon energy. This technique results in higher contrast-to-noise ratio, improved spatial resolution, and optimized spectral imaging. Photon-counting CT can reduce radiation exposure, reconstruct images at a higher resolution, correct beam-hardening artifacts, optimize the use of contrast agents, and create opportunities for quantitative imaging relative to current CT technology. In this review, the authors will explain the technical principles of photon-counting CT in nonmathematical terms for radiologists and clinicians. Following a general overview of the current status of photon-counting CT, they will explain potential clinical applications of this technology.
AB - Photon-counting CT is an emerging technology with the potential to dramatically change clinical CT. Photon-counting CT uses new energy-resolving x-ray detectors, with mechanisms that differ substantially from those of conventional energy-integrating detectors. Photon-counting CT detectors count the number of incoming photons and measure photon energy. This technique results in higher contrast-to-noise ratio, improved spatial resolution, and optimized spectral imaging. Photon-counting CT can reduce radiation exposure, reconstruct images at a higher resolution, correct beam-hardening artifacts, optimize the use of contrast agents, and create opportunities for quantitative imaging relative to current CT technology. In this review, the authors will explain the technical principles of photon-counting CT in nonmathematical terms for radiologists and clinicians. Following a general overview of the current status of photon-counting CT, they will explain potential clinical applications of this technology.
KW - Humans
KW - Image Processing, Computer-Assisted/methods
KW - Photons
KW - Tomography, X-Ray Computed/instrumentation
UR - http://www.scopus.com/inward/record.url?scp=85055072328&partnerID=8YFLogxK
U2 - 10.1148/radiol.2018172656
DO - 10.1148/radiol.2018172656
M3 - Review article
C2 - 30179101
AN - SCOPUS:85055072328
SN - 0033-8419
VL - 289
SP - 293
EP - 312
JO - Radiology
JF - Radiology
IS - 2
ER -