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MRI

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Naman Garg

Magnetic resonance imaging (MRI) uses strong magnetic fields and radio waves to produce detailed images of the inside of the body. Dr. Raymond Damadian discovered in the 1970s that MRI could distinguish between healthy and cancerous tissue, and he filed the first patent for using MRI for medical diagnosis. An MRI scanner aligns hydrogen atoms in the body with a strong magnetic field and uses radio waves to flip their spins, and sensors detect the radio signal emitted as the spins return to normal, allowing an image of tissues and structures to be produced. MRI is used to diagnose conditions like tumors, strokes, and musculoskeletal disorders.

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Science Week Group-1 GROUP MEMBERS 1. DINKY 2. PIYUSH 3. JYOTI 4. TANISHQ 5. PUSHPA 6. NAMAN 7. BHAVAM Magnetic resonance imaging (MRI)
WHAT IS MRI………? • Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. In many cases, MRI gives different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. MRI also may show problems that cannot be seen with other imaging methods.
Founding Father • In 1970, Raymond Damadian, a medical doctor and research scientist, discovered the basis for using magnetic resonance imaging as a tool for medical diagnosis. • He found that different kinds of animal tissue emit response signals that vary in length, and that cancerous tissue emits response signals that last much longer than non-cancerous tissue. • Less than two years later he filed his idea for using magnetic resonance imaging as a tool for medical diagnosis with the U.S. Patent Office, entitled "Apparatus and Method for Detection Cancer in Tissue." A patent was granted in 1974, it was the world's first patent issued in the field of MRI. By 1977, Dr. Damadian completed construction of the first whole-body MRI scanner, which he dubbed the "Indomitable."
How It Works • The human body is mostly water. Water molecules (H2O) contain hydrogen nuclei (protons), which become aligned in a magnetic field. An MRI scanner applies a very strong magnetic field (about 0.2 to 3 tesla, or roughly a thousand times the strength of a typical fridge magnet), which aligns the proton "spins." • The scanner also produces a radio frequency current that creates a varying magnetic field. The protons absorb the energy from the magnetic field and flip their spins. When the field is turned off, the protons gradually return to their normal spin, a process called precession. The return process produces a radio signal that can be measured by receivers in the scanner and made into an image.
MRI
Applications of MRI • MRIs are administered to patients suffering from: 1. degenerative diseases 2. strokes and tumors 3. musculoskeletal disorders and other irregularities that exist in tissue or organs in their body, • It is also used to evaluate brain function for assessing : 1. language, 2. senses, 3. neurologic disorders, 4. speech delay, 5. creatine deficiency syndromes, 6. mood disorders in young children • In food science, MRI techniques allow the interior of foods to be imaged noninvasively and nondestructively. These images can then be quantified to yield information about several processes and material properties

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MRI

  • 1. Science Week Group-1 GROUP MEMBERS 1. DINKY 2. PIYUSH 3. JYOTI 4. TANISHQ 5. PUSHPA 6. NAMAN 7. BHAVAM Magnetic resonance imaging (MRI)
  • 2. WHAT IS MRI………? • Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. In many cases, MRI gives different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. MRI also may show problems that cannot be seen with other imaging methods.
  • 3. Founding Father • In 1970, Raymond Damadian, a medical doctor and research scientist, discovered the basis for using magnetic resonance imaging as a tool for medical diagnosis. • He found that different kinds of animal tissue emit response signals that vary in length, and that cancerous tissue emits response signals that last much longer than non-cancerous tissue. • Less than two years later he filed his idea for using magnetic resonance imaging as a tool for medical diagnosis with the U.S. Patent Office, entitled "Apparatus and Method for Detection Cancer in Tissue." A patent was granted in 1974, it was the world's first patent issued in the field of MRI. By 1977, Dr. Damadian completed construction of the first whole-body MRI scanner, which he dubbed the "Indomitable."
  • 4. How It Works • The human body is mostly water. Water molecules (H2O) contain hydrogen nuclei (protons), which become aligned in a magnetic field. An MRI scanner applies a very strong magnetic field (about 0.2 to 3 tesla, or roughly a thousand times the strength of a typical fridge magnet), which aligns the proton "spins." • The scanner also produces a radio frequency current that creates a varying magnetic field. The protons absorb the energy from the magnetic field and flip their spins. When the field is turned off, the protons gradually return to their normal spin, a process called precession. The return process produces a radio signal that can be measured by receivers in the scanner and made into an image.
  • 6. Applications of MRI • MRIs are administered to patients suffering from: 1. degenerative diseases 2. strokes and tumors 3. musculoskeletal disorders and other irregularities that exist in tissue or organs in their body, • It is also used to evaluate brain function for assessing : 1. language, 2. senses, 3. neurologic disorders, 4. speech delay, 5. creatine deficiency syndromes, 6. mood disorders in young children • In food science, MRI techniques allow the interior of foods to be imaged noninvasively and nondestructively. These images can then be quantified to yield information about several processes and material properties