Magnetic Resonance Imaging

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The Faces Behind the Discovery of Magnetic Resonance Imaging

Isidor Isaac Rabi

He won the 1944 Nobel Prize in Physics for his "resonance method for recording the magnetic properties of atomic nuclei."

He was the one to discover that protons have magnetic moments and that they precess around an external magnetic field. His experiments (on nuclei) revealed the jump between energy states of the proton when resonated with radio frequency waves.

Felix Bloch & Edward Purcell

Both men independently took Rabi's experiments to the next level - condensed matter.

Purcell Bloch

These men were awarded the 1952 Nobel Prize in Physics for the "nuclear magnetic resonance in condensed matter."

Paul Lauterbur

Lauterbur discovered that images could be produced from the magnetic properties of the protons. This will now be called magnetic resonance imaging.

Paul is a professor at the University of Illinois

He was the first to use a magnetic field gradient to vary the resonant frequencies of spinning atoms. Although his images were very difficult to produce, he had a variety - glass tubes, mouse thoracic cavity, and the first human body part - a finger!!

Richard Ernst

He discovered that sending pulsed signals through a changing magnetic field would produce images very quickly. This made it possible for health professionals to actually be able to utilize MRI.

He was awarded the 1991 Nobel Prize in Chemistry "for his contributions to the development of the methodology of high resolution nuclear magnetic resonance (NMR) spectroscopy."

All of these men contributed tremendously to the design and implementation of MRI scanning machines in hospitals. Now, MRI scans are another common hospital resource.

Before MRI scans, X-rays were popular. However, X-rays use ionizing radiation that could be harmful to humans.

Now, MRI scans are used for a huge variety of injuries, infections, or illnesses, such as:

multiple sclerosis, torn ligaments, tendonitis, cysts, spinal injuries, strokes, and many others.

MRI scans can even be used to record brain activity during certain events.

MRI Personal Statement
305 Words | 1 Pages
My interest in MRI started when I first read the book “MRI, The Basics” written by the author Ray Hashemi. By the time I successfully finished my MRI clinical placement in Tehran University of Medical Sciences, I knew for sure that MRI would be the field I would be choosing to take on. What attracts me most about MRI is how beautifully scientist could create a technology that can take advantage of the magnetic moments of human body for imaging it without any harms of ionizing radiation. Although there are drawbacks to MRI, combining it with other modalities would be a more effective approach to an accurate diagnosis.
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Neuropsychology & Spouse/Family Members
1818 Words | 4 Pages
The MRI, on the other hand is less expensive and much safer (as it doesn’t expose the patient to potentially harmful radioactive chemicals). The MRI or magnetic resonance imaging device, as an safer alternative, applies a powerful magnetic field around the head of the patient.
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Oppenheimer's early studies were devoted mainly to energy processes of subatomic particles, including electrons,positrons, and cosmic rays. He also did innovative work on not only neutron stars but also black holes. His university provided him with an excellent opportunity to research the quantum theory, along with exploration and development of its full significance. This helped him train an entire generation of U.S. physicists. Furthermore, the most important impact was the invention of the atomic bomb.
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Magnetic Resonance Imaging Great Helps Medicine
764 Words | 2 Pages
The machine is a 100% accurate method of disease detection throughout the body and is most often used after other testing methods have failed to provide sufficient information to confirm a patient’s diagnosis. According to journalist Mary Bellis, two brilliant men Felix Block of Stanford University and Edward Purcell of Harvard University discovered MRI in the 1930s. Because of their discoveries they used nuclear magnetic resonance (NMR) to study composition of chem...
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Magnetic Significance Imaging And MRI
618 Words | 2 Pages
Magnetic resonance imaging (MRI) is considered as one of the pioneers in medical imaging for diagnosis of pathologies involving soft tissues and internal structures. MRI provides good contrast resolution between different soft tissues of the body especially in brain, muscles, heart etc compared to other medical imaging modalities like computed tomograpgy (CT) and conventional radiography which utilizes x-rays for imaging. The other important aspect of MRI versus other imaging modalities like CT and conventional radiography is that MRI uses no ionizing radiation like x-rays for imaging, instead it uses a strong magnetic field to align the magnetization of some atoms within the body , then uses radiofrequency pulses to systematically alter the alignment of this magnetization. This process causes the nuclei of certain atoms to produce a magnetic field which can be detected by the scanner, and all this information is used to reconstruct an MR image of the scanned area of the body. The initial experiments by Sir Otto Stern in the year 1922 stated that physically the magnetic resonance ima...
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803 Words | 2 Pages
All in all, MRI is a great imaging modality to properly diagnose a patient. MRI has many advantages and does not use any type of radiation. Even though MRI has been around for about a century it has gained a lot of advancement in the image quality. MRI allows a wide variety of anatomy to be imaged such as soft tissue, spine work, and organs. Like any imaging modality MRI does have a couple of disadvantages, but the advantages out way the risks. MRI will continue to improve and will be one of the best imaging modalities in the medical field.
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Benjamin Franklin
854 Words | 2 Pages
This was the beginning of many awards in his experiments to come. He was elected to the Royal Society on May 29, 1756. This is probably one of the most influential factors in his work and this is one way that his work was seen by people all over Europe and other parts of the world. Members of the Royal Society had their scientific works published in the Philosophical Transactions of the Royal Society. (DOSB,129)
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Richard P. Feynman was born in 1918 in Brooklyn; in 1942 he received his Ph.D. from Princeton. Already displaying his brilliance, Feynman played an important role in the development of the atomic bomb through his work in the Manhattan Project. In 1945 he became a physics teacher at Cornell University, and in 1950 he became a professor at the California Institute of Technology. He, along with Sin-Itero and Julian Schwinger, received the Nobel Prize in Physics in 1965 for his work in the field of quantum electrodynamics.
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551 Words | 2 Pages
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Magnetic Resonance Imaging

MRI Personal Statement

Neuropsychology & Spouse/Family Members

How Did Robert Oppenheimer Impact Society