Accession Number:

ADA361485

Title:

An Investigation Into the Noninvasive Assessment of Bone Density Using Multiplexed Compton Scattered Tomography.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING

Personal Author(s):

• Sands, Marc J.

Report Date:

1999-03-08

Pagination or Media Count:

94.0

Abstract:

The purpose of this research is to investigate the application of a Compton scatter imaging technique to measure bone density. A demonstration Multiplexed Compton Scatter Tomograph MCST was assembled to demonstrate the feasibility of detecting osteoporosis by modifying a system originally designed to detect hidden corrosion in aluminum aircraft wings. Measurements were performed on an aluminum phantom representing a wrist bone containing varying densities in the center and varying thickness of the cortical shell. The densities in the center are comparable to normal trabecular bone, sixty-percent of normal trabecular bone and a void. The MCST images of the phantom were then compared to simulated images from a detector. The images and simulations were also compared to images from a clinical computed tomography CT scanner. Based on the results, the MCST can discern the features represented by the trabecular bone. The system was able to differentiate normal, osteoporotic and void densities.

Descriptors:

• *DENSITY
• *BONES
• *COMPTON SCATTERING
• SIMULATION
• MEASUREMENT
• THICKNESS
• DETECTION
• CLINICAL MEDICINE
• VOIDS
• FEASIBILITY STUDIES
• ALUMINUM
• IMAGES
• COMPUTERIZED TOMOGRAPHY
• WRIST
• OSTEOPOROSIS

Subject Categories:

• Anatomy and Physiology
• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE