Adaptive processing to correct for organ motion artifacts in X-ray CT medical imaging systems

2002 ◽  
Author(s):  
A.C. Dhanantwari ◽  
S. Stergiopoulos
Keyword(s):  
Medical Imaging ◽  
Motion Artifacts ◽  
Imaging Systems ◽  
Organ Motion ◽  
Adaptive Processing ◽  
X Ray

Correcting organ motion artifacts in x-ray CT medical imaging systems by adaptive processing. I. Theory

2001 ◽  
Vol 28 (8) ◽  
pp. 1562-1576 ◽  
Author(s):  
A. C. Dhanantwari ◽  
S. Stergiopoulos ◽  
I. Iakovidis
Keyword(s):  
Medical Imaging ◽  
Motion Artifacts ◽  
Imaging Systems ◽  
Organ Motion ◽  
Adaptive Processing ◽  
X Ray

Luminescence Properties of $({\rm Lu},{\rm Y})_{2}{\rm SiO}_{5}:{\rm Ce}$ and ${\rm Gd}_{2}{\rm SiO}_{5}:{\rm Ce}$ Single Crystal Scintillators Under X-Ray Excitation for Use in Medical Imaging Systems

2007 ◽  
Vol 54 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Ioannis G. Valais ◽  
Ioannis S. Kandarakis ◽  
Dimitris N. Nikolopoulos ◽  
Christos M. Michail ◽  
Stratos L. David ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Single Crystal ◽  
Imaging Systems ◽  
Luminescence Properties ◽  
X Ray

scholarly journals Behaviour of Y203:Eu3+ Scintillator under Radiation used in Medical Applications

2019 ◽  
Vol 7 ◽  
pp. 233
Author(s):  
I. Kandarakis ◽  
D. Cavouras ◽  
G. S. Panayiotakis ◽  
D. Koutsogiorgis ◽  
D. Triantis ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Conversion Efficiency ◽  
Light Emission ◽  
Radiation Detectors ◽  
Imaging Systems ◽  
Optical Parameters ◽  
X Ray ◽  
Luminescence Efficiency ◽  
Coating Weight ◽  
Light Conversion Efficiency

The Y2 O3:Eu3+ scintillator was studied for use in radiation detectors of medical imaging systems. Y2 O3 :Eu3+ was used in the form of laboratory prepared test screens. The x-ray luminescence efficiency of the screens was measured for tube voltages up 250 kVp. The intrinsic x-ray to light conversion efficiency (nc) and other optical parameters of the Y2 03:Eu3+ scintillator related to optical scattering, absorption, and reflection were determined. The light emission spectrum of Y2 03:Eu3+ was measured (λ=613 rim). The x-ray luminescence efficiency peaked at 180 mg/cm2 screen coating weight. The intrinsic x-ray to light conversion efficiency was found to be nc =0.095. Results indicated that Y2 03:Eu3+ is a medium to high overall performance material that could be used in medical imaging systems.

Correcting organ motion artifacts in x-ray CT systems based on tracking of motion phase by the spatial overlap correlator. II. Experimental study

2001 ◽  
Vol 28 (8) ◽  
pp. 1577-1596 ◽  
Author(s):  
Amar C. Dhanantwari ◽  
Stergios Stergiopoulos ◽  
Nikolaos Zamboglou ◽  
Dimos Baltas ◽  
Hans-Georg Vogt ◽  
...  
Keyword(s):  
Experimental Study ◽  
Motion Artifacts ◽  
Organ Motion ◽  
X Ray ◽  
Spatial Overlap

Europium-activated phosphors for use in X-ray detectors of medical imaging systems

1998 ◽  
Vol 8 (2) ◽  
pp. 313-318 ◽  
Author(s):  
I. Kandarakis ◽  
D. Cavouras ◽  
G. S. Panayiotakis ◽  
D. Triantis ◽  
C. D. Nomicos
Keyword(s):  
Medical Imaging ◽  
Imaging Systems ◽  
X Ray
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