scholarly journals Fine Biomedical Imaging Using X-Ray Phase-Sensitive Technique

10.5772/20456 ◽  
2011 ◽  
Author(s):  
Akio Yoneyama ◽  
Shigehito Yamada ◽  
Tohoru Take
Keyword(s):  
Biomedical Imaging ◽  
Sensitive Technique ◽  
X Ray ◽  
Phase Sensitive

Development and Pre‐Clinical Evaluation of a Patient‐Specific High Energy X‐ray Phase Sensitive Breast Tomosynthesis System

2021 ◽  
Author(s):  
Muhammad U. Ghani ◽  
Xizeng Wu ◽  
Laurie L. Fajardo ◽  
Zhengxue Jing ◽  
Molly D. Wong ◽  
...  
Keyword(s):  
Clinical Evaluation ◽  
High Energy ◽  
Patient Specific ◽  
Breast Tomosynthesis ◽  
X Ray ◽  
Phase Sensitive

scholarly journals Correlating Metal Poisoning with Zeolite Deactivation in an Individual Catalyst Particle by Chemical and Phase-Sensitive X-ray Microscopy

2013 ◽  
Vol 52 (23) ◽  
pp. 5983-5987 ◽  
Author(s):  
Javier Ruiz-Martínez ◽  
Andrew M. Beale ◽  
Upakul Deka ◽  
Mathew G. O'Brien ◽  
Paul D. Quinn ◽  
...  
Keyword(s):  
Catalyst Particle ◽  
X Ray ◽  
Metal Poisoning ◽  
Phase Sensitive

Phase-sensitive x-ray absorption driven by strong infrared fields

2005 ◽  
Vol 71 (4) ◽  
Author(s):  
F. F. Guimarães ◽  
V. Kimberg ◽  
V. C. Felicíssimo ◽  
F. Gel’mukhanov ◽  
A. Cesar ◽  
...  
Keyword(s):  
X Ray ◽  
Phase Sensitive ◽  
X Ray Absorption

Evaluation and comparison of a CdTe based photon counting detector with an energy integrating detector for X-ray phase sensitive imaging of breast cancer

2021 ◽  
pp. 1-13
Author(s):  
Muhammad U. Ghani ◽  
Farid H. Omoumi ◽  
Xizeng Wu ◽  
Laurie L. Fajardo ◽  
Bin Zheng ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Spatial Resolution ◽  
Standard Dose ◽  
Photon Counting ◽  
High Energy ◽  
Edge Enhancement ◽  
X Ray ◽  
Photon Counting Detector ◽  
Phase Sensitive ◽  
Observer Studies

PURPOSE: To compare imaging performance of a cadmium telluride (CdTe) based photon counting detector (PCD) with a CMOS based energy integrating detector (EID) for potential phase sensitive imaging of breast cancer. METHODS: A high energy inline phase sensitive imaging prototype consisting of a microfocus X-ray source with geometric magnification of 2 was employed. The pixel pitch of the PCD was 55μm, while 50μm for EID. The spatial resolution was quantitatively and qualitatively assessed through modulation transfer function (MTF) and bar pattern images. The edge enhancement visibility was assessed by measuring edge enhancement index (EEI) using the acrylic edge acquired images. A contrast detail (CD) phantom was utilized to compare detectability of simulated tumors, while an American College of Radiology (ACR) accredited phantom for mammography was used to compare detection of simulated calcification clusters. A custom-built phantom was employed to compare detection of fibrous structures. The PCD images were acquired at equal, and 30% less mean glandular dose (MGD) levels as of EID images. Observer studies along with contrast to noise ratio (CNR) and signal to noise ratio (SNR) analyses were performed for comparison of two detection systems. RESULTS: MTF curves and bar pattern images revealed an improvement of about 40% in the cutoff resolution with the PCD. The excellent spatial resolution offered by PCD system complemented superior detection of the diffraction fringes at boundaries of the acrylic edge and resulted in an EEI value of 3.64 as compared to 1.44 produced with EID image. At MGD levels (standard dose), observer studies along with CNR and SNR analyses revealed a substantial improvement of PCD acquired images in detection of simulated tumors, calcification clusters, and fibrous structures. At 30% less MGD, PCD images preserved image quality to yield equivalent (slightly better) detection as compared to the standard dose EID images. CONCLUSION: CdTe-based PCDs are technically feasible to image breast abnormalities (low/high contrast structures) at low radiation dose levels using the high energy inline phase sensitive imaging technique.

A pulsed phase-sensitive technique for acoustical measurements

1999 ◽  
Vol 106 (6) ◽  
pp. 3424-3433 ◽  
Author(s):  
Vladimir F. Kozhevnikov ◽  
Dmitrii I. Arnold ◽  
Matthew E. Briggs ◽  
Salim P. Naurzakov ◽  
John M. Viner ◽  
...  
Keyword(s):  
Sensitive Technique ◽  
Phase Sensitive
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