Diffraction Enhanced Mammography American Association of Physicists in Medicine July 28, 1999

10/26/1999


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Table of Contents

Diffraction Enhanced Mammography American Association of Physicists in Medicine July 28, 1999

Collaborators

Background

Advanced Photon Source

APS Experimental Floor

Discovery of DEI

Comparison - Conventional and DEI

Comparison - Conventional and DEI

DEI image of ACR phantom - smallest calcifications

How Does DEI Work?

Synchrotron Radiography and DEI

Experimental Setup at the NSLS X15A - X-ray Imaging PRT

Physics of DEI

Refraction - Absorption Analysis

DEI Analysis - Refraction & Absorption

Refraction Test Phantom

Where did excess contrast come from?

Extinction Contrast

Extinction in wood

Extinction effects in wood

Transition to multiple scattering

DEI Sources of Contrast

Cancer in Breast Tissue

Correlation of DEI features with cancer - MS2191- Invasive Lobular Carcinoma

Correlation of DEI features with cancer - MS1489- Invasive Lobular Carcinoma

Correlation of DEI features with cancer - MS6936- Infiltrating Ductal Carcinoma

Mouse Images

Mouse Images APS 1-BM-B 18keV

Mouse Images

Rabbit Lung Tissue Experiments

Extinction in Lung Tissue

Diffraction Enhanced Computed Tomography - DECT

DECT Oil-Plexiglass Test Object

DECT Oil-Plexiglass Test Object

Summary of Results

Plans

Supported by:

Author: Dean Chapman

Email: dean.chapman@iit.edu

Home Page: www.iit.edu/~chapman