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This comprehensive overview assesses a number of noninvasive ways to look inside the human body. Segment one addresses the limitations of X-ray and fluoroscopic technologies and introduces computed tomography, magnetic resonance imaging, and ultrasound. Segment two describes how images are digitized and discusses the practical difficulties in achieving a clear image. Segment three demonstrates how computers can be used to enhance image definition. And segment four features two virtual reality programs that allow medical students to practice performing a craniotomy to remove a tumor and percutaneous rhizotomy to treat trigeminal neuralgia. (38 minutes)



 
                

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Copyright date: ©2001




     


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What Is Cancer?
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The first episode in the Cancer Story series provides a primer on how cancer begins and grows. Using colorful animation and interviews with medical experts, the program explains normal cell behavior and cancer etiology within a larger, dramatized sto...(more details)
 
Anesthesia: A Clinical Introduction
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This program explains how anesthetics modulate and inhibit the conduction of neural stimuli. After contrasting sleep with unconsciousness, the structure of the nervous system and the transfer and suppression of electrochemical signals are addressed. ...(more details)
 
Burn Surgery
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For burn patients, only treatment that is as swift as it is skillful will offer the best chance to minimize scarring. In this program, the father/son team of Drs. Richard and Peter Grossman performs reconstructive surgery on the hands, arms, neck, an...(more details)
 
Radioactivity: How Much Can the Body Take?
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In a millisecond, on July 16, 1945, the evolution of the human species took a remarkable turn. Until the explosion of the world's first nuclear weapon, the human body coexisted, if uneasily, with natural sources of radioactivity from the sky, rocks, ...(more details)
 
Radiation Roulette
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A single CT scan is the equivalent of hundreds of chest X-rays-leading some experts to view the widely used procedure as a dangerous medical gamble. This program offers detailed information on radiation screening tests, their benefits, and hazards th...(more details)
 


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