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Diagnostic Technologies

Diagnostic Technologies. By: Ansa, Jeremy, Maranatha, Ravneet. Magnetic Resonance Imaging (MRI). Definition: a medical tool in which magnetic fields interact with atoms in the human body producing images.

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Diagnostic Technologies

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  1. Diagnostic Technologies By: Ansa, Jeremy, Maranatha, Ravneet

  2. Magnetic Resonance Imaging (MRI) • Definition: a medical tool in which magnetic fields interact with atoms in the human body producing images. • It uses strong magnetic fields to cause the magnetic fields of hydrogen atoms to align in the same direction as the outside magnetic field. • A radio transmitter applies varying radio waves in which certain frequencies of the radio waves are absorbed when the radio- frequency photons cause the magnetic fields of the molecule to “flip” in the opposite direction.

  3. Application to Quantum • See Fig. 6 on p. 175 • The MRI machine produces a magnetic spin, and so the hydrogen atom’s spin will line up in the direction of the magnetic spin. • Half will spin up and the rest will spin down (but not exactly equal). • Few atoms will have a spin that does not cancel- producing a measurable magnetic field. • A radio pulse is then applied causing unmatched atoms to reverse their spin and when the pulse is removed, these atoms will flip back to their original spin and release energy. • Detectors register the energy released and a computer interprets the data.

  4. Advantages of MRI • Does not use ionizing radiation and there is no risk for the patients who receive an MRI. • Patients who receive a CAT scan or x-ray are exposed to low levels of radiation which is a known risk for cancer.

  5. Future • Quantum technologies allow scientists to obtain more precise measurements in their analysis’. • The application of Quantum technologies will form quantum imaging and photography to smaller computer chips. • This could increase computing speed and memory capacity to amazing levels.

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