Description

INTRODUCTION

Dual Energy X-ray Absorptiometry (DEXA) is an instrumental technique used to measure bone mineral density (BMD) that includes the hip and spine, compared to SXA (Single Energy X-ray Absorptiometry) that measures only the wrist or heel bone. BMD is the widely accepted indicator of bone strength.

Dual Energy X-ray Seminar Report

Page Length : 33

Content :

• Introduction
• Principles of Dual Energy X-ray Absorptiometry
  • Principal components of a DEXA system
  • Interaction of X-ray photon with physical matter
  • Mass attenuation coefficient (U) and mass per unit area (M) of the absorber
  • Determination of Mass per unit area of a homogeneous absorber
• DEXA analysis of human body composition
  • Components of a human body
  • A model DEXA analysis
• Actual DEXA calculation
  • The Rvalue
  • Use of Rvalue
• Advantages of DEXA scanning
• Conclusions
• References