Episode 26: Invention and Impact of Ultrasound

Dean Franklin developed the first instruments to measure blood flow and the changes in diameter of the pulsating heart in conscious animals. He also pioneered the use of radio waves to measure heart and blood vessel function without wiring the body to the instrument. Dusty Sarazan, a former student of Dean Franklin, explains how these inventions led to the non-invasive cardiovascular monitoring instruments we have today. You can find the full article on Dean Franklin here and a press release here . (Begins at 02:22) A program note: We misspoke when we mentioned that physiologists made an important discovery after a giraffe frightened an instrumented baboon. In fact, a leopard had frightened the baboon. The Buzz in Physiology (Begins at 00:52) A study on how exercise helps prevent weight regain after dieting finds that exercise reduces the drive to overeat, causes the body to burn fat before burning carbohydrates and prevents an increase in the number of fat cells during weight regain. A study on how alcohol can disrupt circadian rhythm finds that chronic drinking blunts the biological clock's ability to synchronize daily activities to light, disrupts natural activity patterns and continues to affect the body's clock even days after the drinking ends.

You can listen to Episode 26: Invention and Impact of Ultrasound online on Radio and Podcast. Open the player on this page to stream the available audio.

Episode 26: Invention and Impact of Ultrasound is an episode from Life Lines - The Podcast of The American Physiological Society by The American Physiological Society.

This episode is 00 long.

This episode was published on Oct 7, 2009.

Yes. Use the heart button on the episode page to add it to your favorite episodes list.

Yes. This page shows related episodes from Life Lines - The Podcast of The American Physiological Society when more episodes are available from the podcast feed.