...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...
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...2a. The Magnetic Resonance Imaging machine, MRI machines, is a computing innovation that uses two powerful magnets that produce strong magnetic fields, radio waves, and a computer in order to create a detailed pictures of the human body. 2b. 2c. The MRI machine has a wide variety of uses, One benefit of the MRI machine on the people of society is that it does not use ionizing radiation like Computed Tomography (CT) machines and X-Ray machines when they are used on individuals. Ionizing radiation is extremely harmful to the human body because it can damage the DNA inside living cells. This makes MRI scans reliable and safe. Although MRI are some of the safest types of medical scanning, the patient undergoing the scan could be in potential...
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...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...
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...Magnetic Resonance Imaging Technician (MRI Tech) An MRI Technician is a person that operates MRI scanners. An MRI scanner is something that uses a strong magnetic field and radio frequencies to make 3-dimensional photos of a patient’s body tissues, than physicians use them to help diagnose patients. An MRI tech makes approximately $31.45 an hour, and approximately $65,410 a year. Some good personality traits for an MRI tech are; a natural interest in technology and science, the ability to be empathetic and have patience to sick and injured people, an interest in helping people, the ability to work well with your hands and on your feet, the willingness to work crazy hours, and wanting a fast-paced job in the healthcare industry. A high school diploma and an associate’s degree...
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...Magnetic resonance imaging (MRI) or nuclear magnetic resonance imaging, is a diagnostic tool capable of showing detailed images of the human body. It is a more reliable technique when there is a need to look at body organs and soft tissue that can't be clearly observed with X-rays, CT scans or ultrasound. The most important feature about MRI is that it can help to clearly distinguish between healthy and unhealthy tissues in organs and body parts like the brain, spine, joints and other internal organs. This can lead to early detection and treatment of life threatening diseases. MRI uses a powerful magnetic field, radio waves, rapidly changing magnetic fields, and a computer to create body images. It measures the water content (or fluid...
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...The role of Magnetic Resonance Imaging (MRI) in Diagnoses of Pituitary Gland Name: Institution: The role of Magnetic Resonance Imaging (MRI) in Diagnoses of Pituitary Gland The pituitary gland is an important part of the body because it controls several hormonal glands such as adrenals and the thyroid. The gland is a nearly the size of a pea and has two parts referred to as the lobes (Maya & Pressman, 2010). The front part is the anterior pituitary while the back part is the posterior pituitary. The pituitary gland is part of a bony hollow called the pituitary fossa behind the bridge of the nose and below the brain’s base near the optic nerves. Maya and Pressman (2010) add that the pituitary gland is the most important part of the system because it produces hormones controlling the functions of other endocrine glands. The most common problem occurring in the pituitary gland is the development of a benign growth or tumor. The tumor causes the gland to secrete excess hormone, blocks its production or causes it to malfunction. Other causes of pituitary disorders include traumatic brain injury and pituitary infarction. Although pituitary disorder are able to alter quality of a person’s life significantly, medical or surgical treatment is available where efficient diagnosis is made. The present study investigates the role of imaging modalities in the evaluation of pituitary gland disorders. Particular emphasis is laid on the role of Magnetic Resonance Imaging (MRI) in diagnosing...
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...The benefit verses the effect of fetal Magnetic Resonance Imaging has been a controversially subject for years. Magnetic Resonance Imaging is a helpful tool for diagnosis of many diseases and abnormalities, but is it actually harmful to the fetus? Do the benefits of the Magnetic Resonance Imaging imaging outweigh the risks? Ultrasound is the mostly commonly used imaging used in pregnancy, but in certain cases using fetal Magnetic Resonance Imaging in conjunction with ultrasound is very beneficial in planning and strategizing care for the fetus. Magnetic Resonance Imaging has been proven to help to better characterize mass, show location and extension of the lesion, and to show more detail in certain conditions. Using MRI can help to characterize...
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...In the following report, my colleague and I have discussed the topic of tomography and its application in the form of MRI’s. Now, you may ask what is tomography or what is an MRI? Well tomography is the imaging of an object via sections that are cut up by any kind of penetrating waves, and it truly brings together mathematics with biology and technology. The example of tomography that we will be discussing are MRI’s. Now MRI stands for magnetic resonance imaging, which is a noninvasive diagnostic technique that produces computerized images of internal body tissues via the vibration of protons caused by released radio waves. This is possible because magnetic fields are used to align protons in the body for our radio waves to hit them. Once the...
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...Understanding The Hazards Of The MRI Technique Magnetic resonance imaging (MRI) is one the most rapidly advancing imaging techniques available today. Not to mention one of the safest but there are many safety precautions that need to be taken before encountering its magnetic field. It is used to produce detailed sectional images of the body on any imaging plane. Compared to the x-ray medical diagnostic techniques, general position emission tomography (PET) and computed tomography (CT) a (MRI) scan does not apply ionising radiation but uses the radiofrequency field to scan the body. Therefore, the system is considered to have less health effects than the ionising radiation-based imaging modalities. The potential benefits of MRI are numerous,...
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...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...
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...primary benefits are that companies can become more efficient and cost-effective by doing so. Initially, these may be the primary motivators to outsource, but additional benefits could include better operation control, staffing flexibility, continuity and risk management, and the development of internal staff by temporarily subcontracting new people into the company who could eventually work next to existing employees and train them with a new skill set (operationstech.about.com). The first company, Teleradiology Solutions, which began in 2002, transmits images such as CT’s (computed tomography), MRI’s (magnetic resonance imaging), and x-rays from their home base in Bangalore, India to other parts of the world, particularly the United States, Europe, and Singapore. The company is looking to expand to other places such as Africa. They specialize in elective or subspecialty imaging and the turnaround for reports is generally within 30 minutes. Teleradiology Solutions uses a unique radiology workflow intelligence system called RADSpa ™ (telradsol.com). The second company, ScanCafe, started out as a class project at the Wharton Business School at the University of Pennsylvania. They scan and enhance old photographs. Increasingly, they are hiring high-end designers to design photo books. Originally, they had planned on doing the work from their offices in San Francisco, but they found the $1.00 per photo enhancement to be cost prohibitive. ScanCafe then outsourced the graphic editing...
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...seeking care. The value of a new medical technology is determined by supply and demand (Getzen, 2007). Diagnostic radiology is a prime example of the value being determined by both supply and demand. As radiologic imaging advanced from two dimensional x-ray images to three dimensional ultrasound images, magnetic resonance imaging (MRI), and Computed tomography (CT) providing better image quality and increased accuracy of diagnoses, the demand for these services rose. Statistics show that from 1996 to 2006 the frequency of radiology imaging increased nearly 60%, from 61 million studies to 99 million (Klein, 2008). This significant increase in use is directly related to enhance image quality used for diagnosis. This figure will continue to rise as more baby-boomers use these services to diagnose potential health issues that can be determined through radiologic imaging. This paper will discuss the demand and supply of outpatient radiologic imaging centers within the United States health care industry. Outpatient Radiologic Imaging Statistics indicate the growing use of radiologic imaging for diagnosis of health ailments. This demand has created a strain on the ability of hospitals to adequately supply all patients with access to diagnostic radiologic imaging without delay. This...
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...results will either be posted on a screen or on paper. You might be wondering why someone would get an EEG. Some reasons are epilepsy, dementia, sleep disorders, and to help find out if a person has a physical problem. The good news is that the test isn't painful and you don't have to remove any hair from your scalp. The bad news is that the adhesive used to attach the electrodes to your scalp will take a day or two to scrub out. An EEG may be done in a hospital or by doctor’s office by an EEG technologist. Another method for studying the brain is called an MRI. The abbreviation MRI stands for magnetic resonance imaging. Its a test that uses a magnetic field to pulse radio wave energy to make pictures of organs and structures inside the body. MRI’s can show problems that cannot be seen with other imaging methods such as, X-ray, ultrasound, or computed tomography. Magnetic resonance imaging is used for several reasons. Its used to find problems such as tumors, bleeding, injury, blood vessel diseases, or infection. This test can be done by an MRI technologist, yet the pictures are usually interpreted by a radiologist. Some of the pros of having an MRI done are: 3D images with high resolution, excellent soft tissue contrast, and it’s safe and painless for patients. Some of the cons are: scanning takes a long time, some patients might get claustrophobic, and patients with metallic devices cannot be tested. Positron emission tomography, or PET is a test that uses a...
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...This article describes how magnetic resonance is helping to discover how the brain works in different ways. (MRI) Magnetic Resonance Imaging helps to find brain tumors, and also helps to discover damage in the brain after a stroke. (MRS) Magnetic Resonance Spectroscopy helps to find the type of tumor without using biopsies, diagnosing coma, dementia, stroke, etc. (fMRI) Functional Magnetic Resonance Imaging used in guidance for guidance to brain surgeons, and used to map brain functions. In other words, these techniques are helping neuroscientist to explore the brain. One of the particular case that they mentioned is the case of Phineas Gage. A man in 1848 that worked at the rail road had a dramatic head injury. An iron road went from his...
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...PS124-05 Rachael Patton 9/25/2013 PS124-05 Rachael Patton 9/25/2013 Alzheimer’s Disease Alzheimer’s Disease Have you knew someone with Alzheimer’s or knew someone that had a loved one with Alzheimer’s disease, if you have then you know that it is a very hard thing to deal with. To have someone look at you as though they don’t know you? Or have you ever wondered why they call it Alzheimer’s disease well according to the National Institute on Aging is named after Dr. Alois Alzheimer, he had noticed changes in the brain tissue of a woman that died of an unusual mental illness. The woman’s symptoms included memory loss, language problems and unpredictable behavior. After she had died he had found many clumps in the brain which are now called amyloid plaques and tangled bundles of fibers called neurofibrillary tangles. Plaques and tangles of the brain are the two main features of Alzheimer’s disease, so as you can he is the one who first discovered Alzheimer’s disease and that is why it is named after him. Now although I have not had any kind of experience with this disease, I felt that it is an important disease to research because I want to know how to prevent this disease from happening to me or someone that I love. In order for me to do this I have to understand why and how the parts of the brain that causes this disease to malfunction and cause people to lose their memory. According to the Cleveland Clinic Alzheimer’s disease is a progressive disease that damages...
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