Dual-and multi-energy CT: principles, technical approaches, and clinical applications

CH McCollough, S Leng, L Yu, JG Fletcher - Radiology, 2015 - pubs.rsna.org
In x-ray computed tomography (CT), materials having different elemental compositions can
be represented by identical pixel values on a CT image (ie, CT numbers), depending on the …

Vision 20/20: single photon counting x‐ray detectors in medical imaging

K Taguchi, JS Iwanczyk - Medical physics, 2013 - Wiley Online Library
Photon counting detectors (PCDs) with energy discrimination capabilities have been
developed for medical x‐ray computed tomography (CT) and x‐ray (XR) imaging. Using …

Photon-counting x-ray detectors for CT

M Danielsson, M Persson, M Sjölin - Physics in Medicine & …, 2021 - iopscience.iop.org
The introduction of photon-counting detectors is expected to be the next major breakthrough
in clinical x-ray computed tomography (CT). During the last decade, there has been …

[PDF][PDF] Review of hybrid pixel detector readout ASICs for spectroscopic X-ray imaging

R Ballabriga, J Alozy, M Campbell, E Frojdh… - Journal of …, 2016 - core.ac.uk
Today most of the deployed X-ray detection equipment for medical diagnosis and industrial
nondestructive testing are based on energy integrating detector technology. When using …

Performance of today's dual energy CT and future multi energy CT in virtual non‐contrast imaging and in iodine quantification: a simulation study

S Faby, S Kuchenbecker, S Sawall, D Simons… - Medical …, 2015 - Wiley Online Library
Purpose: To study the performance of different dual energy computed tomography (DECT)
techniques, which are available today, and future multi energy CT (MECT) employing novel …

Asic developments for radiation imaging applications: The medipix and timepix family

R Ballabriga, M Campbell, X Llopart - Nuclear Instruments and Methods in …, 2018 - Elsevier
Hybrid pixel detectors were developed to meet the requirements for tracking in the inner
layers at the LHC experiments. With low input capacitance per channel (10–100 fF) it is …

Photon counting detectors for X-ray imaging with emphasis on CT

R Ballabriga, J Alozy, FN Bandi… - … on Radiation and …, 2020 - ieeexplore.ieee.org
X-ray imaging is a widely used imaging modality in the medical diagnostic field due to its
availability, low cost, high spatial resolution, and fast image acquisition. X-ray photons in …

Next-generation hardware advances in CT: cardiac applications

AC Kwan, A Pourmorteza, D Stutman, DA Bluemke… - Radiology, 2021 - pubs.rsna.org
Impending major hardware advances in cardiac CT include three areas: ultra-high-
resolution (UHR) CT, photon-counting CT, and phase-contrast CT. Cardiac CT is a …

Photon-counting CT of the brain: in vivo human results and image-quality assessment

A Pourmorteza, R Symons, DS Reich… - American Journal …, 2017 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Photon-counting detectors offer the potential for improved
image quality for brain CT but have not yet been evaluated in vivo. The purpose of this study …

Spectral and dual-energy X-ray imaging for medical applications

E Fredenberg - Nuclear Instruments and Methods in Physics Research …, 2018 - Elsevier
Spectral imaging is an umbrella term for energy-resolved X-ray imaging in medicine. The
technique makes use of the energy dependence of X-ray attenuation to either increase the …