Document Detail

Clarification of aspects in in-line phase-sensitive x-ray imaging.
MedLine Citation:
PMID:  17388191     Owner:  NLM     Status:  MEDLINE    
In this report we clarify two aspects for in-line phase-sensitive x-ray imaging, which includes phase-contrast imaging and phase imaging. First, we point out that there is confusion in the literature about the lateral coherence length, which is widely adopted as the coherence criteria for implementing phase-sensitive imaging. The confusion exaggerates the coherence requirement for clinical implementation of in-line phase-sensitive imaging. Instead we show that the ratio of the phase-space shearing length to lateral coherence length is a good measure for gauging the partial coherence realized in a specific image setting. Second, based on the general intensity equation for in-line phase-sensitive imaging, we discuss the differences between the phase-contrast imaging and phase imaging in terms of the physics mechanism, image acquisition approaches, computation algorithm development, and the potentials for tissue quantitative characterization.
Xizeng Wu; Hong Liu
Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Medical physics     Volume:  34     ISSN:  0094-2405     ISO Abbreviation:  Med Phys     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-03-28     Completed Date:  2007-04-24     Revised Date:  2007-12-03    
Medline Journal Info:
Nlm Unique ID:  0425746     Medline TA:  Med Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  737-43     Citation Subset:  IM    
Department of Radiology, University of Alabama at Birmingham, Birmingham, Alabama 35233, USA.
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MeSH Terms
Imaging, Three-Dimensional / methods*
Online Systems
Radiographic Image Enhancement / methods
Radiographic Image Interpretation, Computer-Assisted / methods*
Reproducibility of Results
Sensitivity and Specificity
X-Ray Diffraction / methods*
Grant Support

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