Preview

MRI Scan Analysis

Good Essays
Open Document
Open Document
558 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
MRI Scan Analysis
It is a type of scan that is used in medical settings to evaluate and come to a diagnostic conclusion of the body. This process involves the use of both strong magnetic fields and radio waves in order to produce the image needed to assess the person’s well being. The MRI scan has proven to be effective in examining different parts of the body, and the following are examples: Brain, spinal cord, internal organs, heart and blood vessels, bones.

A normal human adult will have up to 60% of water within their body. Water is essential for survival and the assurance that all the systems in the body are functioning to achieve their purpose. The chemical structure of water composes of two hydrogen atoms attached to a single oxygen atom. Within the hydrogen’s nucleus there is a proton present and the protons respond sensitively in the presence of magnetic fields. Therefore when the magnets are activated, radio signals have been emitted from the MRI scanner to different areas of the body which results in the protons to fall out of their original position in the body. This is why gradient field coils are used and important in the use of MRI scanners because it serves as a way to set different frequencies for the magnetic field . Without the use of these coils, it will be difficult to distinguish through the
…show more content…
During that time the proton undergoes precession where the orientation of the proton changes its rotational axis to allow the proton to spin in the same frequency that it received the radio pulse/absorbed in the body. Once the radio pulse being sent into the body has been absorbed, the proton goes from a low energy level to a high energy level. The sending of the pulse must be turned off in order to allow to determine the radio pulse being emitted from the body. Therefore the proton will spin in the same frequency as the absorbed radio

You May Also Find These Documents Helpful

  • Powerful Essays

    No. MRI uses a powerful magnet in conjunction with radio frequency waves to generate images of your internal organs and structures.…

    • 1055 Words
    • 6 Pages
    Powerful Essays
  • Satisfactory Essays

    Conceptualizing the symptoms of clients of individuals within the large network of social and family systems.…

    • 512 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    The MRI measures variations in magnetic fields. It then computes and depicts cross sections of organs such as the brain with great clarity. It is noninvasive and allows for visualization of all but the tiniest brain structures. Its major problem is the claustrophobic reaction some people have to the procedure. PET scans track substances as they are metabolized by the brain. They can show how the brain is functioning. They can help identify areas that are not functioning normally that might not be obvious anatomically. Their major problem is low-fidelity pictures that have so far limited their value. The fMRI measures changes in blood flow in the brain. It is possible to map ongoing psychological activity and show which areas of the…

    • 151 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Pros And Cons Of CAT Scan

    • 950 Words
    • 4 Pages

    MRI (Magnetic Resonance Imaging) and CAT scans are used by doctors daily. However there are some differences such as CAT scans uses radiation meanwhile MRI doesn’t. Another difference is that MRI is a closed tube meanwhile CAT scan isn’t closed and has lots of space. Both MRI and CAT scans have pros and cons.…

    • 950 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Advances in MRI techniques, both structural and functional, continue to occur at a rapid pace. Although MRI scanners are readily available in most United States Hospitals, arranging acute MRI for a patient can be challenging. This is because equipment is expensive, and image acquisition and interpretation are both time-consuming. Thus, it is relatively unavailable for acute imaging. However, as previously discussed, MRI is optimal in the acute setting.…

    • 1716 Words
    • 7 Pages
    Powerful Essays
  • Satisfactory Essays

    In diagnostic imaging, there are several procedures that aid doctors in the diagnoses of ailments in patients. Radiology, commonly known as x ray, uses radiation to produce a picture on a film. Another common imaging method is magnetic resonance imaging (MRI), which uses giant magnets and radio waves to create an image. However, sonography uses sound waves to generate an image. Through the use of special equipment and computers, diagnostic medical sonographers direct high frequency sound waves into parts of a patient’s body through a wand called a transducer. The transducer sends and receives reflected echoes of sound, much like a dolphin uses “echo-location” (Merton).…

    • 1113 Words
    • 5 Pages
    Satisfactory Essays
  • Good Essays

    One method scientists are using currently to map the function of the human brain is a MRI scan of the brain. It uses a magnetic field and pulses of radio wave energy to make pictures of radio wave energy to make pictures of organs and structures inside the body. An MRI gives different information about structures than other scanners, such as an X-ray and ultrasound. MRIs can show problems that cant be seen by other methods.…

    • 704 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Physics of an Mri Machine

    • 547 Words
    • 3 Pages

    Radio waves much stronger than the magnetic field of the Earth are sent through the body which causes the nuclei in the body to move to a different position. When the nuclei move back to the place they originated from, they send back radio waves that the scanner on the machine picks up and turns them into a picture.…

    • 547 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Cardiac Mri Assignment

    • 1875 Words
    • 8 Pages

    A magnetic resonance imaging test (MRI) uses magnets and radio waves to capture images inside your body without making an surgical incision. An MRI allows your doctor to see the soft tissues in your body, along with your bones. An MRI can be performed on any part of your body. However, a heart or cardiac MRI looks specifically at your heart and the adjacent vessels. Unlike a CT scan(computed tomography), an MRI does not use radiation. It is considered a safer alternative for pregnant women.…

    • 1875 Words
    • 8 Pages
    Better Essays
  • Good Essays

    To obtain this information, a very small dose of a radioactive chemical, called a radiotracer, is injected into the vein of the patient’s arm. The tracer then travels through the body and is absorbed by the concerned organs and tissues. The machine detects and records the energy given off by the tracer substance and, with help from a computer, this energy is converted into three-dimensional pictures. A doctor can then look at images of the body’s organ from any angle in order to detect any functional problems.…

    • 536 Words
    • 3 Pages
    Good Essays
  • Good Essays

    It is not necessary in every pregnancy but, MRI should continue to be used in conjunction with ultrasound when necessary for diagnosis or progression of fetus development that cannot otherwise be seen. They have not proven that it causes any harmful effects to the fetus, but it has helped find many abnormalities of the spinal cord, brain, renal arteries, lungs, and many more body organs. Finding these abnormalities before the baby is born is beneficial to help know how serious the situation may be and to be making medical plans of what to do after birth. MRI provides a clearer image most successfully after the first trimester of pregnancy using low…

    • 962 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Diagnostic Imaging

    • 764 Words
    • 4 Pages

    Magnetic Resonance Imaging or MRI, is a type of diagnostic imaging that shows images of the organs and structures inside your body. Doctors use MRI's for multiple uses such as location tumors or seeing torn ligaments. A MRI is a painless procedure, but it also take's a good amount of time to complete. Patients are placed into a tunnel like machine. Patients are also required to remove all metals on them and to notify the doctors if they have metal inside their skin or body. If not the metals will be pulled off from you and your body. Also they also have inform doctors if the patient is pregnant. Once the MRI has begun, the patient has to remain still. Also the machine is a bit loud so doctors offer the patients earplugs.…

    • 764 Words
    • 4 Pages
    Good Essays
  • Good Essays

    When performing an MRI scan, the resulted images contain the head of the patient (brain, skull, neck, etc...) together with some other parts of the body such as the shoulders or any other things around the head of the patient. However, we are only interested in the patient’s head and more specifically the brain, that is why in this step we perform an orientation step to orient all the brain images into a common coordination and then we perform the brain extraction using brain extraction tool (BET) which will result two images, one image contains only the brain and the other one contains the brain and the skull, both images are needed for further analysis, Figure ‎2.4 and Figure ‎2.5 Show the MRI image before and after applying BET.…

    • 258 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Sonography

    • 1321 Words
    • 6 Pages

    and other equipment, to study the shape and form of organs, muscles and soft tissue in the body. The…

    • 1321 Words
    • 6 Pages
    Better Essays
  • Powerful Essays

    treating cardiac disease

    • 4236 Words
    • 14 Pages

    For decades, scientists have been using electromagnetic and sonic energy to serve medicine. But, aside from electro surgery, their efforts have focused on diagnostic imaging of internal body structures—particularly in the case of x-ray, MRI, and ultrasound systems. Lately, however, researchers have begun to see acoustic and electromagnetic waves in a whole new light, turning their attention to therapeutic—rather than diagnostic—applications. Current research is exploiting the ability of radio-frequency (RF) and microwaves to generate heat, essentially by exciting molecules. This heat is used predominantly to ablate cells. Of the two technologies, RF was the first to be used in a marketable device. And now microwave devices are entering the commercialization stage. These technologies have distinct strengths weaknesses that will define their use and determine their market niches. The depth to which microwaves can penetrate tissues is primarily a function of the dielectric properties of the tissues and of the frequency of the micro waves.…

    • 4236 Words
    • 14 Pages
    Powerful Essays