Technology of Mri
Magnetic Resonance Imaging (MRI) is a safe and painless test that uses a magnetic field and radio waves to produce detailed pictures of the body's organs and structures. An MRI scanner is a large doughnut-shaped magnet that often has a tunnel in the center. They have larger openings and are helpful for patients with claustrophobia (a fear of being in tight, enclosed spaces). During the MRI exam, radio waves manipulate the magnetic position of the body's atoms, which are picked up by a powerful antenna and sent to a computer. These images can be converted into three-dimensional (3-D) pictures of the scanned area that can help pinpoint problems in the body.
1. Examine the historical development of your chosen piece of technology
1946: Felix Bloch and Edward Purcell came up with the idea to use magnets to take pictures of a living being.
1950-1970: Nuclear Magnetic Resonance was used to analyze molecules.
1967: Images of the inside of a body were taken
1970’s: For the first brain MRI the subject had to sit still for eight hours and the images took 72 hours to develop.
1971: Raymond Damadian proved that magnetic resonance could be used to help detect diseases by the different nuclear magnetic relaxation times between tissues and tumors.
1972: The second MRI image was taken. It was two dimensional which showed the length and width.
1973: Paul Lauterbur demonstrated magnetic resonance imaging on test tubes.
1977: Dr. Raymond Damadian completed the first whole body MRI scanner which he called "Indomitable.
July 3,1977: Dr. Raymond Damadien performed the first whole body scan using Indomitable. It lasted four hours and 45 minutes to complete.
1978: The MRI scanner was used to analyze molecules.
1986: The time to recieve an image decreased to five seconds.
1993: The functional MRI was developed. The images showed the different regions of the brain.
An MRI is used and emerged to provide clear images of body parts that can’t be seen
1. Examine the historical development of your chosen piece of technology
1946: Felix Bloch and Edward Purcell came up with the idea to use magnets to take pictures of a living being.
1950-1970: Nuclear Magnetic Resonance was used to analyze molecules.
1967: Images of the inside of a body were taken
1970’s: For the first brain MRI the subject had to sit still for eight hours and the images took 72 hours to develop.
1971: Raymond Damadian proved that magnetic resonance could be used to help detect diseases by the different nuclear magnetic relaxation times between tissues and tumors.
1972: The second MRI image was taken. It was two dimensional which showed the length and width.
1973: Paul Lauterbur demonstrated magnetic resonance imaging on test tubes.
1977: Dr. Raymond Damadian completed the first whole body MRI scanner which he called "Indomitable.
July 3,1977: Dr. Raymond Damadien performed the first whole body scan using Indomitable. It lasted four hours and 45 minutes to complete.
1978: The MRI scanner was used to analyze molecules.
1986: The time to recieve an image decreased to five seconds.
1993: The functional MRI was developed. The images showed the different regions of the brain.
An MRI is used and emerged to provide clear images of body parts that can’t be seen