Essay Magnetic Resonance Imaging - 927 Words

Magnetic Resonance Imaging Magnetic resonance imaging has the potential of totally replacing computed tomography. If history was rewritten, and CT invented after MRI, nobody would bother to pursue CT. --Philip Drew (Mattson and Simon, 1996) WHAT IT IS Magnetic Resonance Imaging, or commonly known as MRI, is a technique used in medicine for producing images of tissues inside the body. It is an important diagnostic tool because it enables physicians to identify abnormal tissue without opening the body through surgery. MRI lets physicians see through bones and organs. MRI does not expose the patient to radiation, unlike tests that use X-rays. MRI provides an unparallel view inside the human body. It is the method of choice for the†¦show more content†¦MRI AND BEYOND MRI technology is still in its infancy. The first MRI exam on a human being ever taken was on July 3, 1977. MRI has been in widespread use for less than 20 years (compared with over 100 years for x-rays). There is still a long future for MRI. It is only the beginning. We can now image in seconds what used to take hours. Here are a few of the developments: 1. Very small scanners for imaging specific body parts are being developed. 2. Functional brain mapping (scanning a persons brain while he or she is performing a certain physical task such as squeezing a ball, or looking at a particular type of picture) is helping researchers better understand how the brain works. 3. Research is under way in a few institutions to image the ventilation dynamics of the lungs through the use of hyperpolarized helium-3 gas. 4. New, improved ways to image strokes in their earliest stages is ongoing.( www.howstuffworks.com) SOCIETAL IMPACTS ADVANTAGES DISADVANTAGES There are always going to be advantages and disadvantages in anything that is developed in the area of technology. MRI is no different. MRI is ideal for: 1. Diagnosing multiple sclerosis (MS) 2. Diagnosing tumors of the pituitary gland and brain 3. Diagnosing infections in the brain, spine or joints 4. VisualizingShow MoreRelatedWhat Is Magnetic Resonance Imaging?1525 Words   |  7 PagesWhat is Magnetic Resonance Imaging? Magnetic Resonance imaging (MRI) is a test that uses a magnetic field and beats of radio wave energy to take pictures of organs and structures inside the body. MRI gives distinctive data about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. MRI imaging can also demonstrate issues that can t be seen with other imaging strategies. Magnetic Resonance Imaging (MRI) works by measuring the way that hydrogen particlesRead MoreMagnetic Resonance Imaging And The Health Field1926 Words   |  8 Pagesthe advent of magnetic resonance imaging applications in the health field forty years ago the technology has become a staple in hospitals all around the world. Magnetic resonance imaging commonly known to one of the safest forms of attaining pictures of the human anatomy. Although magnetic resonance technology is popular amongst health care providers for decades, until recently, scientists could not get the optimum image of some critical parts of the human anatomy. The magnetic resonance technologyRead MoreMagnetic Resonance Imaging ( Mri )843 Words   |  4 PagesMagnetic resonance imaging (MRI) is a powerful medical imaging modality which gives high spatial resolution images without radiation risk. MRI acquires signals from hydrogen protons of subject. Under external static magnetic field (B0), the spins of hydrogen p rotons precess with a Larmor frequency, while they align parallel to the direction of B0. The spins align antiparallel to the direction of B0 when additional radio-frequency (RF) pulse with the Larmer requency is ap-plied. After RF pulse isRead MoreMagnetic Resonance Imaging For The Diagnosis Of Chordoma1256 Words   |  6 PagesMagnetic Resonance Imaging for the Diagnosis of Chordoma Chordoma is a type of malignant tumor that can form at the base of the skull, within the spine and sacral area. This kind of cancer is rare, accounting for 1-4% of bone cancers overall. According to studies by the Surveillanc, Epidemiology, and End Results database, the incidence rate of this disease is â€Å"0.08 per 100,000† and is more prevalent in men between the ages of 50-60 (Walcott et al, 69). The characteristics of chordoma were first describedRead MoreQuestions On Functional Magnetic Resonance Imaging1036 Words   |  5 Pagesthe fusiform gyrus the area specialized in facial perception? Is there an even more precise area within this gyrus that is responsible for facial recognition? 2. What are the author’s main claims concerning these questions? Functional magnetic resonance imaging (fMRI), can be used to see if regions of the fusiform gyrus are specialized in facial recognition and perception. With this, it can be determined that the fusiform face area is found within the fusiform gyrus (or adjacent areas). The fusiformRead MoreAdvantages And Disadvantages Of Magnetic Resonance Imaging1721 Words   |  7 PagesAbstract The purpose of the present review is to analyze the advantages and the disadvantages of pediatric sedation in magnetic resonance imaging. The benefits and the risks involved in pediatric sedation in MRI are evaluated in regards to the current literature. The review is considered to be timely because there is an increasing demand for the provision of anesthetic services and sedation services. Most health practitioners should have appropriate skills in the monitoring and rescue their patientsRead More Functional Magnetic Resonance Imaging Essay1237 Words   |  5 Pagesand successful surgery you are finally back to normal and can lead a normal life once again. While this may be a bit of an extreme example, it highlights one of the many potential and exciting uses of MRI and fMRI technology. Functional magnetic resonance imaging (fMRI) was first developed about two decades ago and it has become, by far, the leading research tool for mapping the brains activity. The technique works by detecting the levels of oxygen in the blood flowing throughout the brain. ThisRead MoreMagnetic Resonance Imaging And Its Effects On The Brain2318 Words   |  10 Pages  MRI it is stands for Magnetic resonance imaging which is the best modality to choice when we want to see the of the spine, it is not invasive procedure, not associated with ionizing radiation to the patient, and provides an excellent soft tissue contrast compared to the other imaging modality. MRI it is use for clarification substantially all spine problem such as degenerative disc diseases and infectious or inflammatory diseases of the spinal cord, identify any spinal tumors, vascular malformationsRead MoreMagnetic Resonance Imaging Essay4309 Words   |  18 Pages Magnetic Resonance Imaging In 1944, Isidor Isaac Rabi was awarded the Nobel Prize for Physics for his resonance method for recording the magnetic properties of atomic nuclei. This method was based on measuring the spin of the protons in the atoms core, a phenomenon known as nuclear magnetic moments. From Rabis work, Paul C. Lauterbur and Peter Mansfield were able to research into magnetic resonance imaging (also known as nuclear magnetic resonance, NMR) and wereRead MoreApplications Of Quantum Mechanics Of Magnetic Resonance Imaging Technology803 Words   |  4 PagesQuantum Mechanics in Magnetic Resonance Imaging Technology Sandesh Jagessar SCH 4U1 Mrs. Mills 03/20/2017 An MRI (magnetic resonance imaging) is a scan that uses a system of techniques, involving magnetism, radio waves and a computer to generate detailed images of the human body. Essentially, it is a tube encased by a large circular magnet. The patient would be placed on a moveable bed, which is then inserted into the tube. The magnet then creates a strong magnetic field that aligns the