Results 51 to 60 of about 7,254 (160)

Detection of calcium pyrophosphate dihydrate crystals in knee meniscus by dual-energy computed tomography

Journal of Orthopaedic Surgery and Research, 2018
Background Calcium pyrophosphate dihydrate (CPPD) crystals are commonly observed in osteoarthritic joints. The aim of our study was to investigate the efficacy of a dual-energy computed tomography (DECT) for detecting CPPD crystals in knee meniscus ...
Hidenori Tanikawa, Ryo Ogawa, Kazunari Okuma, Kengo Harato, Yasuo Niki, Shu Kobayashi, Takeo Nagura   +6 more
doaj   +1 more source

Correlation of size specific dose estimates with organ dose in abdominal spectral computed tomography

Journal of Applied Clinical Medical Physics, Volume 27, Issue 10, October 2026.
Abstract Background In abdominal spectral Computed Tomography (CT), organ dose assessment is important for radiation safety but remains challenging due to the complexity of Monte Carlo (MC) simulations. Purpose This study aimed to compare the correlations of three size‐specific dose estimate (SSDE) metrics (including the central slice SSDEcenter, the ...
Tian Qin, Qingting Sun, Yihan Fan, Mengting Wang, Jing Wang, Yankui Chang, Baohui Liang   +6 more
wiley   +1 more source

Combined single- and dual-energy CT workflow for dose calculation in radiotherapy

Acta Oncologica
Background and purpose: Dual-energy computed tomography (DECT) is increasingly used in radiotherapy delineation due to its enhanced soft tissue contrast. DECT also supports direct dose calculation.
Hella Sand, Jens Edmund, Ane Appelt, Patrick Wohlfahrt, Vicki Trier Taasti , Laurids Østergaard Poulsen, Jimmi Søndergaard, Martin Skovmos Nielsen   +7 more
doaj   +1 more source

Iron and Other Metal Ions in Human Health and Disease

MedComm, Volume 7, Issue 10, October 2026.
Iron, copper, zinc, and calcium orchestrate cellular function through distinct yet cooperative mechanisms: redox‐active iron and copper cycle between oxidation states to act as Fenton catalysts and electron carriers in oxidative phosphorylation (OXPHOS); redox‐inert zinc serves as a structural component of zinc‐finger proteins and a catalytic cofactor ...
Xiaofeng Dai, Jitian Li
wiley   +1 more source

K‐Edge imaging using a clinical dual‐source photon‐counting CT system

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Photon‐counting CT (PCCT) enables K‐edge imaging, an advanced multi‐material decomposition technique that requires multiple energy bins to perform decomposition unconstrained by physical assumptions. The clinical implementation of K‐edge imaging applications like dual‐contrast imaging could lead to reductions in radiation dose and ...
Martin V. Rybertt, Leening P. Liu, Pooyan Sahbaee, Tristan Nowak, Manoj Mathew, Harold I. Litt, David P. Cormode, Ali H. Dhanaliwala, Peter B. Noël   +8 more
wiley   +1 more source

Development and validation of a model for predicting the expression of Ki-67 in pancreatic ductal adenocarcinoma with radiological features and dual-energy computed tomography quantitative parameters

Insights into Imaging
Objective To construct and validate a model based on the dual-energy computed tomography (DECT) quantitative parameters and radiological features to predict Ki-67 expression levels in pancreatic ductal adenocarcinoma (PDAC).
Youjia Wen, Zuhua Song, Qian Li, Dan Zhang, Xiaojiao Li, Jiayi Yu, Zongwen Li, Xiaofang Ren, Jiayan Zhang, Qian Liu, Jie Huang, Dan Zeng, Zhuoyue Tang   +12 more
doaj   +1 more source

Spectral photon-counting CT in first-pass myocardial perfusion imaging for very high-risk patients: a comparison with dual-energy CT

European Radiology Experimental
Background Spectral photon-counting computed tomography (SPCCT) outperformed dual-energy computed tomography (DECT) for coronary artery stenosis assessment. However, data about myocardial perfusion imaging (MPI) is lacking.
Guillaume Fahrni, Salim Si-Mohamed, Rafael Wiemker, David C. Rotzinger, Angèle Houmeau, Cyril Prieur, Philippe Douek, Sara Boccalini   +7 more
doaj   +1 more source

Frontline Nurse Managers' Views of Person‐Centred Management in a Private Hospital: A Qualitative Study

Nursing Open, Volume 13, Issue 8, August 2026.
ABSTRACT Aim To explore the perceptions and experiences of frontline nurse managers regarding the person‐centred management approach. Design A qualitative study. Methods The study adopted a qualitative approach to gain an in‐depth understanding of frontline nurse managers' experiences.
Furkan Cihat Arici, Arzu Kader Harmanci Seren   +1 more
wiley   +1 more source

СРАВНИТЕЛЬНЫЙ АНАЛИЗ РАЗЛИЧНЫХ ТЕХНОЛОГИЙ РАДИОТЕЛЕФОННОЙ СВЯЗИ DECT, GSM, CDMA

Cifra: Информационные технологии и телекоммуникации
В данной статье проведен сравнительный анализ трех основных технологий радиотелефонной связи: DECT, GSM и CDMA. Каждая из этих технологий имеет свои уникальные особенности, области применения и происточные преимущества и недостатки.
Галыгин С.С., Маяков А.К., Сергеев А.Э.   +2 more
doaj   +1 more source

Dual-Energy Computed Tomography for the Detection of Bone Edema-Like Lesions in the Equine Foot: Standing Horses and Cadaveric Specimens

Veterinary Sciences
Dual-energy computed tomography (DECT) is a promising advancement for detecting bone edema-like lesions (BME). However, its application in horses remains limited. The aim of this study was to evaluate DECT virtual-non-calcium (VNCa) imaging in the equine
Jolien Germonpré, Ina Lorenz, Louis M. J. Vandekerckhove, Luc Duchateau, Torsten Diekhoff, Katrien Vanderperren   +5 more
doaj   +1 more source