scholarly journals A statistical, task-based evaluation method for three-dimensional x-ray breast imaging systems using variable-background phantoms

2010 ◽  
Vol 37 (12) ◽  
pp. 6253-6270 ◽  
Author(s):  
Subok Park ◽  
Robert Jennings ◽  
Haimo Liu ◽  
Aldo Badano ◽  
Kyle Myers
Keyword(s):  
Breast Imaging ◽  
Evaluation Method ◽  
Three Dimensional ◽  
Imaging Systems ◽  
X Ray

A task-based evaluation method for x-ray breast imaging systems using variable-background phantoms

2009 ◽  
Author(s):  
Subok Park ◽  
Haimo Liu ◽  
Robert Jennings ◽  
Robert Leimbach ◽  
Iacovos Kyprianou ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Evaluation Method ◽  
Imaging Systems ◽  
X Ray

TU-A-17A-02: In Memoriam of Ben Galkin: Virtual Tools for Validation of X-Ray Breast Imaging Systems

2014 ◽  
Vol 41 (6Part26) ◽  
pp. 446-447 ◽  
Author(s):  
K Myers ◽  
P Bakic ◽  
C Abbey ◽  
M Kupinski ◽  
T Mertelmeier
Keyword(s):  
Breast Imaging ◽  
Imaging Systems ◽  
X Ray ◽  
Virtual Tools ◽  
In Memoriam

Fabrication of microcalcifications for insertion into phantoms used to evaluate x-ray breast imaging systems

2021 ◽  
Author(s):  
Bahaa Ghammraoui ◽  
Ahmed Zidan ◽  
Alaadin Alayoubi ◽  
Aser Zidan ◽  
Stephen Jeffrey Glick
Keyword(s):  
Breast Imaging ◽  
Imaging Systems ◽  
X Ray

Numerical and experimental analysis of a transmission-based breast imaging system: a study of application to patients

2020 ◽  
Vol 12 (6) ◽  
pp. 469-476
Author(s):  
Elham Norouzzadeh ◽  
Somayyeh Chamaani ◽  
Jochen Moll ◽  
Christian Kexel ◽  
Duy Hai Nguyen ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging System ◽  
Breast Ultrasound ◽  
Imaging Systems ◽  
Ultra Wideband ◽  
Resonance Imaging ◽  
X Ray ◽  
Qualitative And Quantitative ◽  
System A ◽  
Technological Limitations

AbstractEarly detection of breast cancer is required to increase the chances of a successful treatment. However, current breast-imaging systems such as X-Ray mammography, breast ultrasound, and magnetic resonance imaging have technological limitations so that novel solutions are needed to address this major societal problem. The current paper considers ultra-wideband (UWB) microwave radiation in the frequency band from 1 to 9 GHz. Given by the non-ionizing nature of microwaves frequent check-ups are more feasible. In this work, we propose algorithms for qualitative and quantitative microwave breast imaging for a transmission-based UWB system. Based on numerical and experimental data, the performance of the algorithms has been investigated and compared. Finally, microwave images obtained during an initial patient study are discussed relative to corresponding X-ray images.

scholarly journals Comparison of X-ray-Mammography and Planar UWB Microwave Imaging of the Breast: First Results from a Patient Study

Diagnostics ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 54 ◽  
Author(s):  
Dennis Wörtge ◽  
Jochen Moll ◽  
Viktor Krozer ◽  
Babak Bazrafshan ◽  
Frank Hübner ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Breast Imaging ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Patient Study ◽  
X Ray ◽  
Dimensional Image ◽  
Two Dimensional Image ◽  
Golden Standard ◽  
First Results

Hemispherical and cylindrical antenna arrays are widely used in radar-based and tomography-based microwave breast imaging systems. Based on the dielectric contrast between healthy and malignant tissue, a three-dimensional image could be formed to locate the tumor. However, conventional X-ray mammography as the golden standard in breast cancer screening produces two-dimensional breast images so that a comparison between the 3D microwave image and the 2D mammogram could be difficult. In this paper, we present the design and realisation of a UWB breast imaging prototype for the frequency band from 1 to 9 GHz. We present a refined system design in light of the clinical usage by means of a planar scanning and compare microwave images with those obtained by X-ray mammography. Microwave transmission measurements were processed to create a two-dimensional image of the breast that can be compared directly with a two-dimensional mammogram. Preliminary results from a patient study are presented and discussed showing the ability of the proposed system to locate the tumor.

MO-A-141-02: Session In Memory of Fearghus O't Foghludha - Virtual Tools for Validation of X-Ray Breast Imaging Systems

2013 ◽  
Vol 40 (6Part23) ◽  
pp. 390-390 ◽  
Author(s):  
P Bakic ◽  
K Myers ◽  
I Reiser ◽  
N Kiarashi ◽  
R Zeng
Keyword(s):  
Breast Imaging ◽  
Imaging Systems ◽  
X Ray ◽  
Virtual Tools

scholarly journals Mean glandular dose coefficients (DgN) for x-ray spectra used in contemporary breast imaging systems

2015 ◽  
Vol 60 (18) ◽  
pp. 7179-7190 ◽  
Author(s):  
Anita Nosratieh ◽  
Andrew Hernandez ◽  
Sam Z Shen ◽  
Martin J Yaffe ◽  
J Anthony Seibert ◽  
...  
Keyword(s):  
Breast Imaging ◽  
Imaging Systems ◽  
X Ray ◽  
Mean Glandular Dose ◽  
Dose Coefficients

Ribosome Structural Organization

1974 ◽  
Vol 32 ◽  
pp. 332-333
Author(s):  
James A. Lake
Keyword(s):  
Ribosomal Proteins ◽  
Structural Organization ◽  
Three Dimensional ◽  
Small Subunit ◽  
Structural Studies ◽  
X Ray Diffraction ◽  
Specific Antibodies ◽  
X Ray ◽  
E Coli ◽  
Complete Sequences

The understanding of ribosome structure has advanced considerably in the last several years. Biochemists have characterized the constituent proteins and rRNA's of ribosomes. Complete sequences have been determined for some ribosomal proteins and specific antibodies have been prepared against all E. coli small subunit proteins. In addition, a number of naturally occuring systems of three dimensional ribosome crystals which are suitable for structural studies have been observed in eukaryotes. Although the crystals are, in general, too small for X-ray diffraction, their size is ideal for electron microscopy.

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