Diagnostic Testing

  • Common Causes of Low Apgar Scores

    The infant Apgar score can let health care providers know how well the newborn is adjusting to life outside of the uterus. Learn about this test and common causes of low Apgar scores.
    By Diana Cooper May 11, 2010 

  • Understanding Echocardiography

    Has your doctor scheduled an echocardiogram for you or a loved one? If so, read on to learn more about this diagnostic test.
    By R. Elizabeth C. Kitchen April 30, 2010 

  • Mechanisms and Workings of MRI Machines

    The mechanisms and workings of MRI machines are based on the principles of nuclear technology. Our basic understanding of how subatomic particles interact with magnetism and radio frequencies allows us to utilize the design of the MRI machine to conduct...
    By Jason C. Chavis March 31, 2010 


  • Blood Test for Adrenal Fatigue

    This article describes the blood test for adrenal fatigue preceded by an overview of normal adrenal gland anatomy and physiology and a description of adrenal fatigue.
    By Justthankful March 24, 2010 

  • Understanding Airport Whole Body Scanner Technology

    Increased media interest in whole body scanner images and manufacturers has created an information deficit on how backscatter x-ray, millimeter wave, and other associated technologies actually work. Are they safe enough for repeated, frequent exposure?
    By John Moehring March 10, 2010 

  • The Difference between a CT scan and MRI

    The difference between a CT scan and MRI is not understood by many. This is understandable because they share some similarities. Learn about the differences between an MRI and a CT scan in this overview.
    By DaniellaNicole March 3, 2010 


  • What Does an MRI Machine Look Like?

    What does an MRI machine look like? To the casual observer, a magnetic resonance imaging machine looks like a large tube. However, this design is needed to house the magnet and other devices such as gradient coils, shims and thermal shielding necessary...
    By Jason C. Chavis February 23, 2010 

  • Types of MRI Machines

    There are a number of different types of MRI machines used to locate different tissue types within the body. While each machine is essentially the same, they can be programmed to conduct different types of tests using magnetic fields and radio frequencies...
    By Jason C. Chavis February 21, 2010 

  • History of the CT Scanner

    The history of the CT scanner in the field of medicine dates back to the 1970s when two researchers developed a computerized way to produce tomographic images. Since then, various advances in the technology have made CT scanners commonplace in the medical...
    By Jason C. Chavis February 21, 2010 

  • Positron Emission Tomography Principles

    To produce a three-dimensional image of a patient, medical professionals can use a technique of scanning utilizing positron emission tomography principles. In its most basic sense, this system is used to detect gamma rays introduced into the body at a...
    By Jason C. Chavis February 21, 2010 
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