Dual-energy CT–based monochromatic imaging

L Yu, S Leng, CH McCollough - American journal of …, 2012 - Am Roentgen Ray Soc
OBJECTIVE. We summarize how virtual monochromatic images are synthesized from dual-
energy CT using image-domain and projection-domain methods. The quality of virtual …

CT for evaluation of acute gastrointestinal bleeding

ML Wells, SL Hansel, DH Bruining, JG Fletcher… - Radiographics, 2018 - pubs.rsna.org
Acute gastrointestinal (GI) bleeding is common and necessitates rapid diagnosis and
treatment. Bleeding can occur anywhere throughout the GI tract and may be caused by …

ICRP publication 135: diagnostic reference levels in medical imaging

E Vañó, DL Miller, CJ Martin, MM Rehani… - Annals of the …, 2017 - journals.sagepub.com
The measurement of quantities related to patient dose for optimisation of protection in
medical imaging with ionising radiation began more than half a century ago. Beginning in …

Virtual monochromatic imaging in dual‐source dual‐energy CT: radiation dose and image quality

L Yu, JA Christner, S Leng, J Wang… - Medical …, 2011 - Wiley Online Library
Purpose: To evaluate the image quality of virtual monochromatic images synthesized from
dual‐source dual‐energy computed tomography (CT) in comparison with conventional …

Optimal tube potential for radiation dose reduction in pediatric CT: principles, clinical implementations, and pitfalls

L Yu, MR Bruesewitz, KB Thomas, JG Fletcher… - Radiographics, 2011 - pubs.rsna.org
In addition to existing strategies for reducing radiation dose in computed tomographic (CT)
examinations, such as the use of automatic exposure control, use of the optimal tube …

Iterative image‐domain decomposition for dual‐energy CT

T Niu, X Dong, M Petrongolo, L Zhu - Medical physics, 2014 - Wiley Online Library
Purpose: Dual energy CT (DECT) imaging plays an important role in advanced imaging
applications due to its capability of material decomposition. Direct decomposition via matrix …

Contrast-to-noise ratio and low-contrast object resolution on full-and low-dose MDCT: SAFIRE versus filtered back projection in a low-contrast object phantom and in …

ME Baker, F Dong, A Primak… - American Journal of …, 2012 - Am Roentgen Ray Soc
OBJECTIVE. The purpose of this article is to evaluate the effect of sinogram-affirmed iterative
reconstruction (SAFIRE) on contrast-to-noise ratio (CNR) compared with filtered back …

Advanced image-based virtual monoenergetic dual-energy CT angiography of the abdomen: optimization of kiloelectron volt settings to improve image contrast

MH Albrecht, JE Scholtz, K Hüsers, M Beeres… - European …, 2016 - Springer
Objectives To compare quantitative image quality parameters in abdominal dual-energy
computed tomography angiography (DE-CTA) using an advanced image-based (Mono+) …

Spectral CT in patients with small HCC: investigation of image quality and diagnostic accuracy

P Lv, XZ Lin, K Chen, J Gao - European radiology, 2012 - Springer
Objective To assess image quality and diagnostic accuracy of monochromatic imaging from
spectral CT in patients with small HCC (≤ 3 cm). Methods Twenty-seven patients with 31 …

Single-and dual-energy CT of the abdomen: comparison of radiation dose and image quality of 2nd and 3rd generation dual-source CT

JL Wichmann, AD Hardie, UJ Schoepf, LM Felmly… - European …, 2017 - Springer
Objectives To compare single-energy (SECT) and dual-energy (DECT) abdominal CT
examinations in matched patient cohorts regarding differences in radiation dose and image …