scholarly journals Signal and noise characteristics of a CdTe-based photon counting detector: cascaded systems analysis and experimental studies

2017 ◽  
Author(s):  
Xu Ji ◽  
Ran Zhang ◽  
Yongshuai Ge ◽  
Guang-Hong Chen ◽  
Ke Li
Keyword(s):  
Systems Analysis ◽  
Photon Counting ◽  
Experimental Studies ◽  
Photon Counting Detector ◽  
Noise Characteristics ◽  
Cascaded Systems

Extension of cascaded systems analysis to single-photon-counting x-ray detectors

2012 ◽  
Author(s):  
Jesse Tanguay ◽  
Seungman Yun ◽  
Ho Kyung Kim ◽  
Ian A. Cunningham
Keyword(s):  
Systems Analysis ◽  
Single Photon ◽  
Photon Counting ◽  
Single Photon Counting ◽  
X Ray ◽  
Cascaded Systems

TH-A-103-03: Cascaded Systems Analysis of a Silicon-Strip Photon Counting CT System

2013 ◽  
Vol 40 (6Part32) ◽  
pp. 526-526
Author(s):  
J Xu ◽  
W Zbijewski ◽  
G Gang ◽  
E Fredenberg ◽  
K Taguchi ◽  
...  
Keyword(s):  
Systems Analysis ◽  
Photon Counting ◽  
Cascaded Systems ◽  
Ct System

Cascaded systems analysis of photon-counting field-shaping multi-well avalanche detectors (SWADs)

2018 ◽  
Author(s):  
Jesse Tanguay ◽  
Wei Zhao ◽  
Amir H. Goldan ◽  
Ian Cunningham ◽  
Dakota McKeown ◽  
...  
Keyword(s):  
Systems Analysis ◽  
Photon Counting ◽  
Cascaded Systems

scholarly journals Cascaded systems analysis of photon counting detectors

2014 ◽  
Vol 41 (10) ◽  
pp. 101907 ◽  
Author(s):  
J. Xu ◽  
W. Zbijewski ◽  
G. Gang ◽  
J. W. Stayman ◽  
K. Taguchi ◽  
...  
Keyword(s):  
Systems Analysis ◽  
Photon Counting ◽  
Photon Counting Detectors ◽  
Cascaded Systems

scholarly journals Quantitative dual contrast photon-counting computed tomography for assessment of articular cartilage health

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Petri Paakkari ◽  
Satu I. Inkinen ◽  
Miitu K. M. Honkanen ◽  
Mithilesh Prakash ◽  
Rubina Shaikh ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Articular Cartilage ◽  
Contrast Agent ◽  
Contrast Agents ◽  
Photon Counting ◽  
Spectral Imaging ◽  
Ct Scanning ◽  
Photon Counting Detector ◽  
Tissue Contrast ◽  
Reference Parameters

AbstractPhoton-counting detector computed tomography (PCD-CT) is a modern spectral imaging technique utilizing photon-counting detectors (PCDs). PCDs detect individual photons and classify them into fixed energy bins, thus enabling energy selective imaging, contrary to energy integrating detectors that detects and sums the total energy from all photons during acquisition. The structure and composition of the articular cartilage cannot be detected with native CT imaging but can be assessed using contrast-enhancement. Spectral imaging allows simultaneous decomposition of multiple contrast agents, which can be used to target and highlight discrete cartilage properties. Here we report, for the first time, the use of PCD-CT to quantify a cationic iodinated CA4+ (targeting proteoglycans) and a non-ionic gadolinium-based gadoteridol (reflecting water content) contrast agents inside human osteochondral tissue (n = 53). We performed PCD-CT scanning at diffusion equilibrium and compared the results against reference data of biomechanical and optical density measurements, and Mankin scoring. PCD-CT enables simultaneous quantification of the two contrast agent concentrations inside cartilage and the results correlate with the structural and functional reference parameters. With improved soft tissue contrast and assessment of proteoglycan and water contents, PCD-CT with the dual contrast agent method is of potential use for the detection and monitoring of osteoarthritis.

scholarly journals A Universal Protocol for Abdominal CT Examinations Performed on a Photon-Counting Detector CT System

2020 ◽  
Vol 55 (4) ◽  
pp. 226-232
Author(s):  
Wei Zhou ◽  
Gregory J. Michalak ◽  
Jayse M. Weaver ◽  
Hao Gong ◽  
Lifeng Yu ◽  
...  
Keyword(s):  
Photon Counting ◽  
Abdominal Ct ◽  
Photon Counting Detector ◽  
Ct System ◽  
Universal Protocol
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