A localization algorithm and error analysis for stereo x-ray image guidance

2000 ◽  
Vol 27 (5) ◽  
pp. 885-893 ◽  
Author(s):  
Hangyi Jiang ◽  
Hong Liu ◽  
Ge Wang ◽  
Wei Chen ◽  
Laurie L. Fajardo
Keyword(s):  
Error Analysis ◽  
Image Guidance ◽  
Localization Algorithm ◽  
X Ray

Localization error analysis for stereo X-ray image guidance with probability method

2001 ◽  
Vol 23 (8) ◽  
pp. 573-581 ◽  
Author(s):  
Hangyi Jiang ◽  
Wei R. Chen ◽  
Ge Wang ◽  
Hong Liu
Keyword(s):  
Error Analysis ◽  
Image Guidance ◽  
Probability Method ◽  
Localization Error ◽  
X Ray

scholarly journals Activation Strategies in Image-Guided Nanotherapeutic Delivery

2020 ◽  
Vol 1 (1) ◽  
pp. 78-104
Author(s):  
Seok Choi
Keyword(s):  
Image Guidance ◽  
Controlled Drug Release ◽  
Review Article ◽  
Imaging Modalities ◽  
Tissue Penetration ◽  
External Stimulation ◽  
X Ray ◽  
Gate Opening ◽  
Design Characteristics ◽  
Ultrasound Hyperthermia

Therapeutic nanomaterials serve as an important platform for drug delivery under image guidance. Despite significant growth and broad applications, their design specifics remain a subject of continued interest primarily due to multifunctional factors involved, ranging from nanomaterial properties, imaging modalities, and therapeutic agents to activation strategies. This review article summarizes key findings on their design characteristics with a particular interest in strategies developed for therapeutic activation (release). First, their activation can be controlled using either an endogenous factor including low pH and glutathione or an external stimulation by light, ultrasound, or electromagnetic field. The former is passively controlled from a spatiotemporal aspect compared to the latter, which is otherwise actively controlled through drug linker photolysis, nanomaterial disassembly, or gate opening. Second, light stimulation serves a most notable strategy due to its essential role in controlled drug release, photothermal activation (hyperthermia), and photodynamic production of reactive oxygen species (ROS). Third, some of those activation strategies that rely on ultrasound, photothermal, photoacoustic, magnetic field, or X-ray radiation are dually functional due to their role in imaging modalities. In summary, this review article presents recent advances and new insights that pertain to nanotherapeutic delivery systems. It also addresses their technical limitations associated with tissue penetration (light), spatial resolution (ultrasound, hyperthermia), and occurrence of cellular resistance (ROS).

A Proposed Solution to Quantitative Phase Analysis of Mullite

2014 ◽  
Vol 633 ◽  
pp. 443-446
Author(s):  
Kai Li ◽  
Hai Jian Li ◽  
Ping Wu
Keyword(s):  
Quantitative Analysis ◽  
Chemical Analysis ◽  
Error Analysis ◽  
Diffraction Method ◽  
Al2o3 Content ◽  
Quantitative Phase Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mullite Phase ◽  
Accuracy Requirement

This paper studied the problems met in the quantitative analysis of synthetic Mullite phase,which was based on the analysis of various typical Mullite composite scheme. A method of quantitative analysis of Mullite phase (excluding amorphous phase SiO2) by use X-ray diffraction was discussed. The error of the analysis can be verified by chemical analysis of Al2O3 content. The method can effectively improve the accuracy of quantitative analysis of the Mullite phase, the error analysis is less than 3%. The error range can meet the accuracy requirement of Mullite content in the production.Studies show that this method is preliminarily solved how to quantitative the content of mullite phase by X-ray diffraction method .

X-ray photon time tagging error analysis and simulation for pulsar navigation

2013 ◽  
Author(s):  
Jianwu Chen ◽  
Liansheng Li ◽  
Fuchang Zuo ◽  
Zhiwu Mei
Keyword(s):  
Error Analysis ◽  
X Ray ◽  
Pulsar Navigation

Error analysis of ellipsoidal mirrors for soft X-ray focusing by wave-optical simulation

2014 ◽  
Vol 53 (2) ◽  
pp. 022503 ◽  
Author(s):  
Hiroto Motoyama ◽  
Takahiro Saito ◽  
Hidekazu Mimura
Keyword(s):  
Error Analysis ◽  
Optical Simulation ◽  
X Ray
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