Optical coherent reflectometry: A new technique to guide invasive procedures

Capabilities and Limitations of Coherent Optical Frequency–domain Reflectometry

Optical time-domain reflectometry (OTDR), originally developed by Barnoski and Jensen in 1976 [1], is now a well-established tool for non-destructive characterization of optical networks and components. In general an ideal reflectometry system would have a spatial resolution high enough to locate closely separated sites of reflection within the network under test. In addition the sensitivity wo...

Phase Noise Considerations in Coherent Optical FMCW Reflectometry

phase noise, coherent reflectometry, FMCW, Rayleigh backscattering, fiberoptic interferometry An analysis of coherent optical FMCW is presented. It shows the limitations imposed on measurements of discrete reflections and of Rayleigh backscattering due to phase noise originating in the finite coherence length of the optical source. The dependence of the range for accurate measurements on partic...

A guide to radiological procedures

It is a pleasure to recommend the second edition of this book. I can only repeat what I have said about the first edition that it represents excellent value for money. I think the authors are to be congratulated on the content and presentation, and their bravery in publishing a book on techniques should not be under-estimated, as virtually every radiologist has an individual approach to each ex...

A Guide to Radiological Procedures

Vascular Mimicry Expression in Invasive Ductal Carcinoma; A New Technique for Prospect of Aggressiveness

Background & Objective: In vascular (vasculogenic) mimicry (VM), tumoral cells mimic the endothelial cells and form the extracellular matrix-rich tubular networks. It has been proposed that VM is more extensive in aggressive tumors. This study was designed to investigate the rate of VM expression in the stromal cells of invasive ductal carcinoma (IDC) and to find its relationsh...