Effective dose reduction in dual-energy flat panel x-ray imaging: technique and clinical evaluation

2002 ◽  
Author(s):  
Gopal B. Avinash ◽  
Kadri N. Jabri ◽  
Renuka Uppaluri ◽  
Amber Rader ◽  
Frank Fischbach ◽  
...  
Keyword(s):  
Effective Dose ◽  
Dose Reduction ◽  
Clinical Evaluation ◽  
Imaging Technique ◽  
Dual Energy ◽  
Flat Panel ◽  
X Ray ◽  
X Ray Imaging

A new x-ray imaging technique for radiography mode of flat-panel imager

2007 ◽  
Author(s):  
K. Suzuki ◽  
S. Ikeda ◽  
K. Ueda ◽  
R. Baba
Keyword(s):  
Imaging Technique ◽  
Flat Panel ◽  
X Ray ◽  
X Ray Imaging

Signal and noise analysis of flat-panel sandwich detectors for single-shot dual-energy x-ray imaging

2015 ◽  
Author(s):  
Dong Woon Kim ◽  
Ho Kyung Kim ◽  
Hanbean Youn ◽  
Seungman Yun ◽  
Jong Chul Han ◽  
...  
Keyword(s):  
Noise Analysis ◽  
Dual Energy ◽  
Single Shot ◽  
Flat Panel ◽  
X Ray ◽  
X Ray Imaging

Single-shot dual-energy x-ray imaging with a flat-panel sandwich detector for preclinical imaging

2014 ◽  
Vol 14 (12) ◽  
pp. 1734-1742 ◽  
Author(s):  
Jong Chul Han ◽  
Ho Kyung Kim ◽  
Dong Woon Kim ◽  
Seungman Yun ◽  
Hanbean Youn ◽  
...  
Keyword(s):  
Dual Energy ◽  
Single Shot ◽  
Flat Panel ◽  
Preclinical Imaging ◽  
X Ray ◽  
X Ray Imaging

Dual-energy x-ray imaging technique for in vitro tissue composition measurement

1994 ◽  
Vol 21 (11) ◽  
pp. 1807-1815 ◽  
Author(s):  
M. Moreau ◽  
D. W. Holdsworth ◽  
A. Fenster
Keyword(s):  
Imaging Technique ◽  
Dual Energy ◽  
Tissue Composition ◽  
X Ray ◽  
X Ray Imaging ◽  
Composition Measurement

Defects of Platelet Function Recognized by X-Ray Imaging and Scanning Electron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 610-613
Author(s):  
M.G. Baldini ◽  
S. Morinaga ◽  
D. Minasian ◽  
R. Feder ◽  
D. Sayre ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cell Biology ◽  
Imaging Technique ◽  
Human Platelets ◽  
X Rays ◽  
X Ray ◽  
X Ray Imaging ◽  
Complex Phenomena ◽  
Scanning Electron

Contact X-ray imaging is presently developing as an important imaging technique in cell biology. Our recent studies on human platelets have demonstrated that the cytoskeleton of these cells contains photondense structures which can preferentially be imaged by soft X-ray imaging. Our present research has dealt with platelet activation, i.e., the complex phenomena which precede platelet appregation and are associated with profound changes in platelet cytoskeleton. Human platelets suspended in plasma were used. Whole cell mounts were fixed and dehydrated, then exposed to a stationary source of soft X-rays as previously described. Developed replicas and respective grids were studied by scanning electron microscopy (SEM).

scholarly journals Unsupervised Foreign Object Detection Based on Dual-Energy Absorptiometry in the Food Industry

2021 ◽  
Vol 7 (7) ◽  
pp. 104
Author(s):  
Vladyslav Andriiashen ◽  
Robert van Liere ◽  
Tristan van Leeuwen ◽  
Kees Joost Batenburg
Keyword(s):  
Object Detection ◽  
Meat Products ◽  
Food Product ◽  
Processing Technique ◽  
Dual Energy ◽  
Foreign Object ◽  
Metal Debris ◽  
X Ray ◽  
Foreign Objects ◽  
X Ray Imaging

X-ray imaging is a widely used technique for non-destructive inspection of agricultural food products. One application of X-ray imaging is the autonomous, in-line detection of foreign objects in food samples. Examples of such inclusions are bone fragments in meat products, plastic and metal debris in fish, and fruit infestations. This article presents a processing methodology for unsupervised foreign object detection based on dual-energy X-ray absorptiometry (DEXA). A novel thickness correction model is introduced as a pre-processing technique for DEXA data. The aim of the model is to homogenize regions in the image that belong to the food product and to enhance contrast where the foreign object is present. In this way, the segmentation of the foreign object is more robust to noise and lack of contrast. The proposed methodology was applied to a dataset of 488 samples of meat products acquired from a conveyor belt. Approximately 60% of the samples contain foreign objects of different types and sizes, while the rest of the samples are void of foreign objects. The results show that samples without foreign objects are correctly identified in 97% of cases and that the overall accuracy of foreign object detection reaches 95%.

X-ray imaging with ultra-small-angle X-ray scattering as a contrast mechanism

2004 ◽  
Vol 37 (5) ◽  
pp. 757-765 ◽  
Author(s):  
L. E. Levine ◽  
G. G. Long
Keyword(s):  
Small Angle ◽  
Imaging Technique ◽  
Three Dimensional ◽  
Sample Volume ◽  
Contrast Imaging ◽  
X Ray ◽  
X Ray Scattering ◽  
X Ray Imaging ◽  
Contrast Mechanism ◽  
Ray Scattering

A new transmission X-ray imaging technique using ultra-small-angle X-ray scattering (USAXS) as a contrast mechanism is described. USAXS imaging can sometimes provide contrast in cases where radiography and phase-contrast imaging are unsuccessful. Images produced at different scattering vectors highlight different microstructural features within the same sample volume. When used in conjunction with USAXS scans, USAXS imaging provides substantial quantitative and qualitative three-dimensional information on the sizes, shapes and spatial arrangements of the scattering objects. The imaging technique is demonstrated on metal and biological samples.

Scattering Ray and Exposure Dose Reduction by Using Metal Sheet in X-ray Imaging System

2021 ◽  
Vol 58 (6) ◽  
pp. 89-96
Author(s):  
Ho-Il Lee ◽  
Seok-Hwan Bae ◽  
Yeun-Chul Ryu ◽  
Young-Joon Park ◽  
Yong-Gwon Kim
Keyword(s):  
Dose Reduction ◽  
Imaging System ◽  
Exposure Dose ◽  
Metal Sheet ◽  
X Ray ◽  
X Ray Imaging
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