Preview

The MRI Measures Variations In Magnetic Fields

Satisfactory Essays
Open Document
Open Document
151 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The MRI Measures Variations In Magnetic Fields
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
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Mri Systemic Therapy Outline
    • 512 Words
    • 3 Pages

    Mri Systemic Therapy Outline

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

    • 512 Words
    • 3 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Pros And Cons Of CAT Scan
    • 950 Words
    • 4 Pages

    Pros And Cons Of CAT Scan

    A CAT scan is an x-ray image made by using radiation and MRI is the use of magnetic field and radio waves to create images of our body. One pro for CAT scans is that it detects diseases before it gets worst however there is also a negative side effect such as high radiation exposure. Additionally, MRIs also have a pro, for example it provides a better detailed image than CAT scans but you have to be still during the scan. Furthermore one pro for CAT scan is it detects, “signs of inflammation,…

    • 950 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    Computed Tomographic Scan
    • 188 Words
    • 1 Page

    Computed Tomographic Scan

    Computed-tomography scan (CT) is a series of x-ray images taken from different angles, which are combined by a computer, into a representation of a slice through the body. CT scan images provide more detailed information than X-rays do. A CT scan has many uses, but is primarily used to quickly examine people who may have internal injuries from car accidents or other types of trauma. A CT scan can also be used to visualize many parts of the body and is used to diagnose disease or injury as well as to plan medical, surgical or radiation treatment. A brain CT is used to evaluate various structures of the brain to look for a mass, stroke, area of bleeding, or blood vessel abnormality. It is also sometimes used to look at the skull. CT scans have…

    • 188 Words
    • 1 Page
    Good Essays
    Read More
  • Powerful Essays

    Traumatic Brain Injury Case Study
    • 1716 Words
    • 7 Pages

    Traumatic Brain Injury Case Study

    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
    Read More
  • Satisfactory Essays

    Multi-Modal Image Registration
    • 181 Words
    • 1 Page

    Multi-Modal Image Registration

    Abstract This paper presents image techniques, registration and processing. Structural imaging techniques provide anatomical images. Structural imaging techniques include CT and MRI. Functional imaging conveys physiological information. Functional imaging techniques include fMRI, PET/CT and MRS. Image registration is a technique which aligns images of different modalities. This allows healthcare professionals to make crucial decisions in diagnosis and treatments. There are different methods of image registration which are based according to nine different criteria. Mono-modal image registration uses images of the same modality. Multi-modal image registration uses images of different modalities. Patient to modality registration uses one image…

    • 181 Words
    • 1 Page
    Satisfactory Essays
    Read More
  • Good Essays

    Cerebral Lateralization and Functionality
    • 281 Words
    • 2 Pages

    Cerebral Lateralization and Functionality

    There are several methods for studying cerebral lateralization; four methods in the forefront are the study of unilateral lesions, sodium amytal, dichotic listening, and functional brain imaging. The traditional method for studying cerebral lateralization is unilateral lesions study, which is the study of the location and effect lesions have on the brain and body functionality. In past, this was primarily done after the subject was deceased or through highly invasive surgery. The sodium amytal test uses an injection of sodium amytal into a carotid artery on the side of the neck that will put the same side hemisphere to sleep for a few minutes allowing doctors to test the other hemisphere for primary language center. The process is then repeated for the opposite side of the hemisphere. This method is invasive, but provides a fairly accurate method to identify the hemisphere that is the primary language center. The dichotic listening test uses earphones to speak a different sequence, such as numbers, in each ear; the sequence with the most digits reported indicates the dominant language hemisphere. For most people, the left hemisphere is the dominant one, meaning the subject would have repeated more sequences heard in the right ear. The dichotic listening test is non-invasive, and it is just as accurate an indicator of primary language center hemisphere as the sodium amytal test method. Functional brain imaging uses positron emission tomography (PET) or functional MRI to measure brain activity while the subject is performing an activity such as reading; typically, functional brain imaging used on language tests reveals more activity in the left hemisphere. Functional brain imaging is the method that shows more detail in brain activity.…

    • 281 Words
    • 2 Pages
    Good Essays
    Read More
  • Powerful Essays

    An exploration into the investigations used to diagnose stroke
    • 1797 Words
    • 5 Pages

    An exploration into the investigations used to diagnose stroke

    CT and MRI scans are popular methods to carry out brain imaging. CT scan is rather like an X-ray which is more detailed and built up into a 3D image. An MRI scan creates an extremely detailed picture of the patient’s body. Both scans are useful in diagnosis however the particular one carried out depends upon how severe the doctors feel your stroke may have been. Both types of scans have their individual pros and cons as they are appropriate to reach different needs of the patient.…

    • 1797 Words
    • 5 Pages
    Powerful Essays
    Read More
  • Good Essays

    Technology of Mri
    • 1026 Words
    • 5 Pages

    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.…

    • 1026 Words
    • 5 Pages
    Good Essays
    Read More
  • Powerful Essays

    How the Mri Procedure Has Impacted Society
    • 1908 Words
    • 8 Pages

    How the Mri Procedure Has Impacted Society

    Since the introduction of Magnetic Resonance Imaging, better known as the MRI scan, medical technology has taken a huge step forward in assisting the diagnosis of sometimes fatal diseases. This in turn has a tremendous impact on our society today; it gives medical professionals an advantage in diagnosing and treating diseases in the earlier stages. Without such tests as the MRI, many lives may be lost that could have otherwise been saved. While the advantages are great, as with any test, there are some disadvantages as well. Overall, the advantages greatly outweigh the disadvantages. The MRI is another step towards equipping health care professionals with ways to treat and cure the people of the world who become ill or injured.…

    • 1908 Words
    • 8 Pages
    Powerful Essays
    Read More
  • Good Essays

    Magnetic Resonance Imaging
    • 328 Words
    • 2 Pages

    Magnetic Resonance Imaging

    Magnetic resonance imaging (MRI) is a type of scan that produces detailed images of the inside of the body using radio waves and strong magnetic fields without using radiation.…

    • 328 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Functional Magnetic Resonance Imaging (Fmri) and Phrenology
    • 834 Words
    • 4 Pages

    Functional Magnetic Resonance Imaging (Fmri) and Phrenology

    By many scientists fMRI is often compared to phrenology, a study that once gained popularity in the 19th century. Phrenology is based on the concept that the brain is the organ of the mind, and that certain brain areas have localized, specific functions or modules (Fodor, 1983). This is similar to fMRI practitioners’ attempts to localize brain structure, matching the divided parts of the brain with certain functions.…

    • 834 Words
    • 4 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Multiple Sclerosis Outline
    • 724 Words
    • 3 Pages

    Multiple Sclerosis Outline

    Doctors tend to perform physical and neurological examinations. People can get a that helps look at the brain.…

    • 724 Words
    • 3 Pages
    Satisfactory Essays
    Read More
  • Good Essays

    Selective Mutism Analysis
    • 682 Words
    • 3 Pages

    Selective Mutism Analysis

    The article, “The Current State of Empirical Support for the Pharmacological Support of Selecive Mutism”, identifies a specific psychological disorder which is called selective mutism. Selective mutism is a rare disorder which occurs during childhood which inhibits a child’s ability to speak in an uncomfortable environment. This environment for such instances most commonly occurs in school classrooms. Selective mutism typically impact children between ages of three and six as they face anxiety from leaving the comfort of an adult or guardian. Some common traits which children with selective mutism exhibit include excessive shyness, anxiety, social withdrawal, oppositional behavior, difficulty leaving their parents, and fear of being embarrassed in their social environment.…

    • 682 Words
    • 3 Pages
    Good Essays
    Read More
  • Powerful Essays

    Describe The Basic Premises Of The MRI Approach
    • 2248 Words
    • 9 Pages

    Describe The Basic Premises Of The MRI Approach

    1. Describe the basic premises of the MRI approach to psychotherapy. Be sure to demonstrate your understanding of the implications of the basic premises for psychotherapy. MRI is a precursor to some of the postmodern approaches, such as the solution-focused therapy, narrative therapy and collaborative therapy. It is an example of a cybernetic approach through communication and control processes.…

    • 2248 Words
    • 9 Pages
    Powerful Essays
    Read More
  • Good Essays

    Neuropsychological Testing
    • 830 Words
    • 4 Pages

    Neuropsychological Testing

    Before the introduction of neuroimaging techniques like the computed tomography (CAT scan) and magnetic resonance imaging (MRI), the primary focus of neuropsychology was diagnosis. Since clinicians lacked non-surgical methods for directly observing brain lesions or structural abnormalities in living patients, neuropsychological testing was the only way to determine which part of the brain was affected in a given patient. Neuropsychological tests can identify syndromes associated with problems in a particular area of the brain. For instance, a patient who performs well on tests of attention, memory, and language, but poorly on tests that require visual spatial skills such as copying a complex geometric figure or making designs with colored blocks, may have dysfunction in the right parietal lobe, the region of the brain involved in complex processing of visual information. When a patient complains of problems with verbal communication after a stroke, separate tests that examine production and comprehension of language help…

    • 830 Words
    • 4 Pages
    Good Essays
    Read More