Dual energy x-ray methods for the characterization, quantification and imaging of calcification minerals and masses in breast

N Martini, V Koukou, C Michail, G Fountos - Crystals, 2020 - mdpi.com
Dual energy (DE) technique has been used by numerous studies in order to detect breast
cancer in early stages. Although mammography is the gold standard, the dual energy …

Afterglow-Suppressed Lu2O3:Eu3+ Nanoscintillators for High-Resolution and Dynamic Digital Radiographic Imaging

M Wang, Y Meng, Y Zhu, J Song, J Yang, C Liu… - Inorganic …, 2022 - ACS Publications
Lu2 (1–x) Eu2 x O3 nanoscintillators (x= 0.005, 0.01, 0.03, 0.05, 0.07, and 0.10) with red
emission were synthesized by a coprecipitation method. It is found that their photo-and …

On the response of a micro non-destructive testing X-ray detector

D Linardatos, V Koukou, N Martini, A Konstantinidis… - Materials, 2021 - mdpi.com
Certain imaging performance metrics are examined for a state-of-the-art 20 μm pixel pitch
CMOS sensor (RadEye HR), coupled to a Gd2O2S: Tb scintillator screen. The signal transfer …

Determination of the detective quantum efficiency (DQE) of CMOS/CsI imaging detectors following the novel IEC 62220-1-1: 2015 International Standard

C Michail, I Valais, N Martini, V Koukou, N Kalyvas… - Radiation …, 2016 - Elsevier
The purpose of the present study was to determine the Detective Quantum Efficiency (DQE)
of CMOS imaging detectors, coupled to structured CsI: Tl and Gd 2 O 2 S: Tb scintillating …

Measurement of the luminescence properties of Gd2O2S: Pr, Ce, F powder scintillators under X-ray radiation

C Michail, I Valais, I Seferis, N Kalyvas, S David… - Radiation …, 2014 - Elsevier
The aim of the present study was to investigate the absolute luminescence efficiency of
gadolinium oxysulfide powder scintillators, doped with praseodymium, cerium and fluorine …

Experimental measurement of a high resolution CMOS detector coupled to CsI scintillators under X-ray radiation

C Michail, I Valais, I Seferis, N Kalyvas, G Fountos… - Radiation …, 2015 - Elsevier
The purpose of the present study was to assess the information content of structured CsI: Tl
scintillating screens, specially treated to be compatible to a CMOS digital imaging optical …

Bone calcium/phosphorus ratio determination using dual energy X-ray method

P Sotiropoulou, G Fountos, N Martini, V Koukou… - Physica Medica, 2015 - Elsevier
Non-invasive dual energy methods have been used extensively on osteoporosis diagnosis
estimating parameters, such as, Bone Mineral Density (BMD) and Bone Mineral Content …

Characterization of breast calcification types using dual energy x-ray method

N Martini, V Koukou, G Fountos, C Michail… - Physics in Medicine …, 2017 - iopscience.iop.org
Calcifications are products of mineralization whose presence is usually associated with
pathological conditions. The minerals mostly seen in several diseases are calcium oxalate …

Light emission efficiency and imaging performance of Lu2O3: Eu nanophosphor under X-ray radiography conditions: Comparison with Gd2O2S: Eu

I Seferis, C Michail, I Valais, J Zeler, P Liaparinos… - Journal of …, 2014 - Elsevier
Nanocrystallic europium-activated lutetium oxide (Lu 2 O 3: Eu) is a strong candidate for use
in digital medical imaging applications, due to its spectroscopic and structural properties …

Dual energy method for breast imaging: a simulation study

V Koukou, N Martini, C Michail… - … methods in medicine, 2015 - Wiley Online Library
Dual energy methods can suppress the contrast between adipose and glandular tissues in
the breast and therefore enhance the visibility of calcifications. In this study, a dual energy …