...MAGNETIC RESONANCE IMAGING MACHINE Purpose: Magnetic Resonance Imaging Machine (MRI) is a machine that uses a magnetic field and pulses of radio wave energy to make detailed images of organs, and structures inside the body. 3-D image of the body The MRI unit has an extremely strong magnet so patients should avoid wearing jewelry and other accessories because they could interfere with the magnetic field. Items not allowed to enter the exam room: * Jewelry, watches, credit cards, and hearing aids (all can be damaged) * Pins, hairpins, metal zippers, and similar metallic items (can alter Images) * Pen, pocketknives, eyeglasses Most of the time, the MRI scan is safe for patients who have metal implants, the technologist should know if the patient has a devices in their body. * Artificial Heart Valves * Implanted Drug Infusion Parts * Implanted Nerve Stimulators * Implanted electronic devices * Artificial Limbs or Metallic Joints Prostheses * Metal Screws, Plates, or Surgical Stapes If there is any doubt about the presence of metal in the body an x-ray should be taken. Very rarely, dyes used in tattoos contain iron which may heat up during an MRI scan. Other things to keep in mind before you receive a MRI: * Patients with claustrophobia or anxiety may want to request a mild sedative * If the MRI scan will involve taking a contrasting agent, the patient should tell the provider about any allergies including hay fever, hives...
Words: 946 - Pages: 4
...Pena, Mary Edilie P. Bs Psychology II-A ChemLec101F Magnetic Resonance Imaging A Paper Requirement in Inorganic Chemistry Magnetic Resonance Imaging (MRI) also called as Nuclear Magnetic Resonance (NMR) is a unique imaging technique that can scan the body without cutting inside the human body, gets images of the human body through scanning with the use of magnets and radio waves to create images and could serve as a valuable addition to diagnostic medicine. The patient lies on a patient table then slides into the cylinder and placed in a magnetic field gradient. When operated, protons are tiny particles that are present in water molecules in the body and protons aligned in parallel to the powerful magnetic field. Radio waves are transmitted in pulses and these protons are echoed along the body. When the MRI machine is scanning, the MRI scanner receives the echoes and it will construct a clear and detailed image of soft tissues of the body to a computer that creates an image based on the radio signals emitted from the body. The whole procedure can take 20-40 minutes or can take even longer. The scanner is very loud, so patient will be required to use earplugs or headphones to protect their ears from the noise. Magnetic Resonance Imaging is important because MRI scan can investigate or diagnose conditions that affect soft tissues such as abnormal tissue like tumours, joint or spinal injuries or diseases, and soft tissue injuries or diseases of internal organ like brain or heart...
Words: 401 - Pages: 2
...Open Bariatric Imaging Diagnostic imaging gives MRI Specialists an accurate representation of what is happening inside a patient’s body. Once complete, the MRI Center gives the patient’s physician a report detailing the results of the scan. These results help a physician determine which treatment is best suited for the injury or condition. A traditional MRI machine is not designed properly for a bariatric patient. Because there are numerous medical conditions and ailments that cannot be accurately diagnosed without the use of state-of-the-art equipment like Open Bariatric Imaging machines, when a physician orders a Magnetic Resonance Scan for a bariatric patient and/or a patient who becomes anxious in tight spaces (claustrophobia), finding a facility with an MRI scanner designed for these patients is essential. MRI Specialists can...
Words: 340 - Pages: 2
...Magnetic resonance imaging, aka MRI, is a scanning technique to produce detailed 3 dimensional anatomical images of the human body in any direction by using a magnetic field and radio waves. The pictures provide information that can be useful in diagnosing a wide variety of diseases and conditions. Radio waves cause the molecules to create faint signals that are used to view the body in narrow, axial slices. How does MRI Work? An MRI scanner has a large magnet with a tube shaped tunnel through the middle. The MRI machine picks up signals from the nuclei of the hydrogen atoms in the body. A computer converts these signals them into a black and white picture. The magnets from the MRIs develops a strong magnetic field that makes the protons to align with the field. When the radiofrequency pulses are sent in, the protons are stimulated and makes them non-equilibrium, a state of the chemical reaction in which the opposing forces are not balanced. When the pulses are off, the particles produce electrical signals...
Words: 1304 - Pages: 6
...interesting topic. One way they do this is by using brain mapping. Brain mapping is the study of the brain using imaging, and they use these imaging machines to make a map of the neurons and synapses in our brain to figure out why people are the way they are. The history of brain mapping is important to understanding how far it has come today. There are many different machines that are used to take a look at the brain. When treating a patient there are different ways doctors can go about using brain mapping. This field just as any other field, is growing every day and never know what tomorrow could bring. Brain mapping has brought us many accomplishments in the medical field, understanding how it got there is the first step to the process. Taking a look at history can be boring at times, but when talking about the brain nothing is boring. In the early 1900’s is when humans first started to realize that our brain did a lot of the work compared to the rest of our bodies. People were shocked because how can that be, something you cannot see is the whole reason why you are the way you are. After this was discovered people wanted to take a look at this and start understanding it more. The first imaging machine ever used was the X-Ray machine in 1895. This machine is what gave the idea of using more machines to take a closer look at the brain. These different machines are how we are taking an even closer look at the brain than ever before. This is how doctors are able to construct...
Words: 1324 - Pages: 6
...Nuclear Magnetic Resonance Explain how the NMR works, analyzing it's strengths and weaknesses, and discussing any ral world applications it may have. All the information founded was based in a careful research from the question above. The research about Nuclear Magnetic Resonance was made with very reliable sources that are trustworthy webpages which guide me, help me and explain me all about the theme, how does it happened, how it does work, and what they use it for, helped me write this paper. The intellectual and scientific contribution were a turning point in the construction of the modern world. Destroying the medieval world view and discarding the idea of divine purposes, modern science starts to examine the physical nature through mathematical relationships and chemical compositions Word Counted:125 Nuclear Magnetic Resonance Introduction: The nuclear magnetic resonance NMR abbreviation is an...
Words: 1295 - Pages: 6
...Dementia are usually diagnosed clinically from the history of the patients, relatives and from the clinical observations, based on the presence of characteristics neurological and neuropsychological features and the absence of alternative conditions. computed tomography, magnetic resonance imaging, positron emission tomography and single emission computed tomography are the advanced medical imaging techniques, which could be used to help and exclude other cerebral pathology or subtypes of the dementia thus this may help to predict the type of dementia that can be converted from one type to another that means from one stage to the other stage of dementia. Thus, some of the assessment can be done to know the intellectual functioning, which may...
Words: 673 - Pages: 3
...processes that are represented in fMRI images (what activity in the brain is actually being observed?). Functional magnetic resonance imaging measures brain activity. It works by detecting the changes in blood oxygenation and flow that occur in response to brain activity by detecting the areas that consume more oxygen and to meet this increased demand blood flow increases to area. Due to this fact fMRI can be used to produce brain maps showing which parts of the brain are involved in a particular mental process. C. (10 pts) Draw a curve that represents blood glucose concentration over time after a person eats a donut. Clearly mark the regions of the curve that are dominated by (a) glucose, (b) insulin, and (c) cortisol. You do not need to show actual numbers or units for glucose concentration, but approximate the timing for the curve (i.e. does it take minutes for the curve to increase or decrease? Hours? Days?). Give the plot a title and axis...
Words: 1321 - Pages: 6
...MRI(Magnetic resonance imaging) MRI is a instrument commonly used in a medical diagnostics. MRI stands for magnetic resonance imaging, it is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body. A MRI can give different information about structures in the body than can be seen with an X-ray, ultrasound, or computed tomography (CT) scan. It measures the water content of tissues within the body, which is processed by the computer, creating a black and white image. A MRI can produce a highly detailed image, showing even the smallest abnormality. A MRI uses strong magnetic fields and radio frequency waves to create images of the human body. A dye containing gadolinium, has magnetic properties that are used during the procedure. It will then circulate through the blood stream and absorbed into certain tissues, that stand out on the scan. The wavelength is somewhere between 4.6m and 3.5m. MRI is the best type of imaging to diagnose most types of brain tumors. They use magnetic fields and radio waves, rather than X-rays, and computers to create detailed pictures of the brain. MRIs show “slices” of the brain that can be used to create a three-dimensional picture of a tumor. The contrast dye is used to enhance the images. When having an MRI done, the area of the body being studied is placed inside a special machine that contains the strong magnet.The standard MRI machine looks like a long cylinder with a narrow...
Words: 340 - Pages: 2
...breast cancer: Mammography – this screen testing uses low-dose x-rays. A screening is used to detect cancer early before patient is showing symptoms. A diagnostic mammography is used after symptoms are found. Sonography – this uses a hand held piece of technology that projects high frequency sound waves. Sonography is also known as an ultrasound. Infrared Thermography – uses a medical infrared camera to detect cancer by detecting energy (heat) and transforming it into a thermal image. Magnetic Resonance Imaging – uses pulses of radio energy and a magnetic field to create an image of the inside of the body. A traditional MRI scanner is a large cylinder surrounded by a large, round magnet. Radiotherapy – uses a machine called a linear accelerator. This particular machine uses electricity to create a surge of fast moving subatomic particles. Radiofrequency Ablation – uses imaging procedures such as an ultrasound, magnetic resonance imaging (MRI) and computed tomography (CT) to show the way for a needle electrode to the cancer. High-frequency electrical currents flow through the electrode, creating heat and destroying the cancer cells. Laser Therapy – this uses high-intensity light to heat the cancer and destroy or shrink it. A small probes are put into the centre of the cancer and the heat from the laser hopefully destroys the abnormal cells Women go into the journey of breast cancer with a more optimistic attitude because...
Words: 653 - Pages: 3
...the firing of a neuron next to it. c. Multiple unit recording – method where a small electrode is used to record the electrical activity of many nearby neurons. d. Invasive EEG recording – method where intracranial electrodes are placed surgically and used to measure general changes in electrical activity in the brain. 2. Describe and compare these three techniques commonly used for obtaining information about the living human brain: fMRI, EEG and CT. CT (Computed Tomography) – A computerized tomography scan of the head which is a test that uses a special x-ray machine to take photographs of a person’s brain and other organs. The machine surrounds the head and takes photographs to provide cross-sections of the brain from different angles. These photos are sent to a computer that records the images. fMRI (Functional magnetic resonance imaging) - Functional magnetic resonance imaging is a technique that allows imaging of brain activity while performing a task. Its technology uses a powerful magnet to measure changes in the distribution of oxygenated blood during and after the subject performs certain tasks. EGG (Electroencephalography) - The electroencephalogram is a procedure that monitors and records brainwaves. Electrodes, are placed on the patient’s scalp and signals are sent to a computer to record the results. The normal electrical activity of the brain forms a recognizable pattern. Doctors use this technique to look for abnormal patterns that indicate seizures or other...
Words: 506 - Pages: 3
...and will require patient consent for an MRI. All other history of metal fragments in the eye require orbit screening x-rays prior to your MRI. All other history of implants or surgery must be indicated to the technologist. The make and model of implants may be necessary (i.e. ear implants, heart valve replacements). The Exam Your exam will last between 30 and 60 minutes. You will need to lie still for periods of 3 to 10 minutes at a time while the series of images are collected. You can breathe freely during this time. You may, in some cases, be allowed to move slightly between scans, but not so much that your position changes. The imaging session creates a series of repetitive knocking sounds when the magnetic field gradients are turned on and off. Listen to the following audio segment as an example of the sound generated by a magnetic resonance imager while an image is being acquired. Because of the volume of these sounds, it is recommended...
Words: 1324 - Pages: 6
...Many people wonder how psychologists know that a particular part of the brain is associated with a certain function. Researchers have used different techniques to study the brain. Researching the brain is not new. Back in the 1800s, phrenology was a popular technique. Phrenology was a procedure that used bumps on an individual’s head to determine and predict personality characteristics. Unfortunately, it is not very accurate. We have found more reliable information from lesions in the brain. A lesion is the natural or intentional destruction of brain tissue. Knowing what happens when a part of the brain is damaged or destroyed is a key to knowing its function when it works correctly. In 1848, a railroad worker named Phineas Gage FIGURE 3- 10 suffered an accident when an explosion drove a 1-pound steel rod straight through his head, destroying much of the front part of his brain. Some of the reports after the accident suggested that his personality was altered. Gage’s case underscores the fact that examining lesions is an important way to study the functions of various parts of the nervous system. Today, more sophisticated technologies are employed to study and treat the brain. For example, electrical stimulation of the brain is a technique used to stimulate neural FIGURE 3- 10 Phineas Gage suffered an accident that damaged his frontal lobe. Phrenology A procedure that uses bumps on an individual’s head to determine and predict personality characteristics...
Words: 784 - Pages: 4
...COMMUNICATION CHANNELS PRESENTATION ON NEW MRI MACHINE AT TRANQUILITY HEALTH CENTER HCS/320 Professor Kelly Henderson By Antoinette Taylor Christina Annett Cynthia Bryant Sharron Whitaker Tranquility Health Center At the Tranquility Health Center we have been given an opportunity to widen our goals in providing quality health services to the public. During this opportunity I hope that we will continue to stand out in our community of health professions while continuing to strength relationships with our clients new and old. During this time we are preparing to receive cutting edge equipment that will allow us to better diagnosis and treatment disease and injuries more efficiently. Please welcome this new chance to explore many wonderful ideas and break through to new cures and advancements with our new state of the art MRI machine. The presentation today will go into detail all the communication channels used for distributing vital information in reference to the change in MRI equipment at Tranquility Health Center. The information will be received by several different audiences including the public. Teams will be assigned from a signup list taken at the mandatory in-service. Each team will have their duties. Each task needs to be set-up, approved by the project manager and begin production by March 10, 2014 and everything completed by May 1, 2014 Tranquility Health Center will use different kinds of communication methods throughout the facility. Some types...
Words: 1954 - Pages: 8
...medical imaging procedures Radiology is a very interesting subject and has a long history. X-Rays were discovered by Wilhelm Conrad Roentgen in 1895. X-rays were first produced in a vacuum tube where electronics travelled at the speed of light, 186,000 miles per second. Electromagnetic rays have high energy and very short wavelengths, which are not visible to the human eye. In 1913, an American radiologist named Gustav Bucky made the very first radiographic grid. With one-hundred radiologists per million Americans, approximately eighty-percent of radiologists are men. Full-time radiologists average a fifty-hour work week. The top four areas of radiology consist of: body cross/abdomen imaging, interventional/vascular imaging, breast imaging/women’s imaging, and neuroradiology. Before your examination, a radiographer will explain the procedure to you and answer any questions you may have. A Radiologic Technologist is a skilled professional with specialized education of anatomy, radiation protection, patient care, radiation exposure, and positioning. It is part of their duty to determine how much radiation is necessary to produce a diagnostic image. Radiographic testing is a non-destructive testing that uses X-rays and/or Gamma-rays for detecting internal imperfections and for detecting corrosion. Over the years cardiac imaging has undergone revolutionary development during recent decades. Coronary angioplasty and subsequent introduction of non-invasive imaging techniques...
Words: 1053 - Pages: 5
