Thursday, May 21, 2020

Vegetarian Is it Better Than Eating Meat - Free Essay Example

Sample details Pages: 9 Words: 2694 Downloads: 1 Date added: 2019/07/29 Category Health Essay Level High school Tags: Vegetarian Essay Did you like this example? Who doesnt like bacon? It is salty, meaty, goes with anything and everything, and there is just no substitute for it. People have even started cooking it into candy. When someone states that they are a vegetarian it appears like they are instantly better than those of us who are omnivores because they have a measure of control not to eat bacon that the rest of us dont have. Don’t waste time! Our writers will create an original "Vegetarian: Is it Better Than Eating Meat?" essay for you Create order Most of us realize that vegetarianism is an expression of ones ethical orientation, so when we think of a vegetarian, we dont simply think of a person whos just like everyone else except that he or she doesnt eat meat. We think of a person who has a certain philosophical outlook, whose choice not to eat meat it a reflection of a deeper belief system in which killing animals for human ends is considered unethical. (Joy, 2011) Vegetarianism is defined by a diet high in fruits, vegetables, and whole grains, while omitting animal based products such as meat and eggs. There are many reasons to choose a plant based lifestyle, the promise of weight loss or health improvement, environmental impact, and religious reasons are among the most common. Also, while not widely known, or talked about, some people adopt vegetarian diets to mask eating disorders. Vegetarians can have a hard time getting the proper amount of usable nutrients because they are not consuming the most ready source of it. Being a vegetarian can affect a persons bone density, nutrient levels, and even their ability to conceive a child. Vegetarianism can be a great way to lose weight or reduce environmental impact, but those who choose this lifestyle also need to be aware of the different nutrients that are not as readily available in plant-based foods as they are in a balanced diet containing meat products. It is the first nice weekend of the year. A woman has stepped out of her bedroom wearing shorts for the first time all year, and her husband sees her legs full of bruises. So many bruises that they blend into one another, and he cant tell where one ends and one begins. There is more purple, green, and blue colored skin on her legs and upper arms than there is flesh colored. The husband is immediately concerned for his wife. It turns out that her latest effort to lose her baby weight was to go vegetarian. However, now it has turned into vegetarian induced anemia and every time she bumps into something or touches something too hard, it leaves a bruise. Many things can cause anemia, especially for women. If people dont get enough of any certain nutrient, it will cause a deficiency. Not all nutrients and vitamins can be supplemented with taking a pill. Some are more readily available if they are eaten at their purest form in food. An iron deficiency, which would cause the anemia, is best treated with eating iron rich foods with some vitamin C rich foods because the vitamin C helps the iron get absorbed into the bloodstream properly. No weight goal is worth sacrificing the health and wellbeing of any person; however, this is exactly what many people in society do today. Being vegetarian can affect bone density even if the person is not anemic. (H., L., N., V, T., 2009) One of the keys to successfully undertaking a vegetarian diet is to plan daily and weekly meals out to avoid the potential deficiencies that are common among all vegetarians, and to make sure a balance is achieved for all nutritional needs. The most common vitamins and nutrients that a vegetarian becomes deficient in are protein, calcium, iron, vitamin B 12, and vitamin D. Since these nutrients are less prevalent in plant-based diet, some vegetarian foods are fortified with them. A nutritional supplement can also fill these gaps. The amount of usable protein they are consuming also needs to be taken into account as well considering theyre not consuming the easiest source of it, animal products. Vegetarian diets help many people looking for an easy to follow solution, to lose weight. They help people cut calories out of their diet simply because a cup of broccoli contains 30 calories well a cup of beef contains 213 cal. This leaves the body and 183 calories deficit and will lose weight. Calories in and calories out is the oldest and easiest form of dieting. Vegetarians can fill up on high fiber, high water content foods with a low calorie cost and be able to lose pounds. They still feel full and are probably eating a lot healthier than they were before. In the American diet people tend to eat a diet consisting of meat, bread, white rice, and sugars with a low emphasis on fruits and vegetables. If people take a look at the vegetarians lifestyle to see that they place a high priority of vegetables and fruit over everything else with a lower amount of carbs, they will usually get a lot healthier than they were. The fact that vegetarians can cut out calories, saturated fat, and cholesterol will help them create a healthier picture of themselves. Some people even use vegetarian diets, or other restrictive diet plans, to mask eating disorders. It becomes a way to say they cant eat a food because they are vegetarian, and it gives them the excuse to not indulge in other foods that anorexia or bulimia wont allow them to eat. Natalie (Name changed for personal protection) was extremely anorexic in high school; however, she drank a ton of soda, because she was a teenager and it was socially acceptable for her to drink Mountain Dew at dinner and say she ate earlier while still looking like she was consuming calories. She claimed to her friends that she was a vegetarian and wouldnt eat when they stopped at McDonalds for game dinners after cheerleading. Natalie told her parents she ate all the time with her cheerleading squad, or at school. No one saw her eat. Natalie admitted a few years afterward that she drank diet Mountain Dew to be able to partake in a social eating activity. Telling everyone she was a vegetarian allowed her to m ask that she was extremely anorexic and unhealthy. The one thing that saved her was getting pregnant with her son. Natalie knew she had to take care of her body to be able to take care of her baby. After she took care of her body for her baby, she knew she could take control over food in her life again. She cured herself of her immediate anorexia, although it never entirely goes away. Natalies story is not the exception. About half of all patients seeking treatment for anorexia nervosa, a reported 45 to 54%, practice some form of a vegetarian diet. This is critical information for treatment because professionals have to figure out the persons motivations for being vegetarian while balancing respect for his or her body autonomy. Vegetarianism can be viewed suspiciously in these circumstances as it seems to give those struggling with restricting food a way of masking attempts to lose weight, or the avoidance of eating certain foods. Its a way to let the eating disorders out in public while masking it with restrictive diets. Using restrictive diets to mask eating disorders also allows people not to accept food at a party, or force them to bring their own food to a social gathering. It also gives an excuse not go out to eat with friends. If nearly half of people seeking treatment for anorexia are admitting that they were vegetarians because it was an easy way to contr ol their eating disorder, then vegetarianism, along with any other restrictive diet, is something that needs to be looked at closer for those who have a predisposition for eating disorders. For those who bring up the environment as the reason to eat a plant based diet, the numbers there are quite different depending on the perspective you take. While every body is different the common consensus from nutritionists is that adult males and females need approximately 2000 calories to perform their daily bodily functions. To grow a thousand calories of broccoli it emits 5.9 planetary emissions, subsequently it only takes 4.8 emissions to grow 1000 calories of chicken. (Vegetarian or. Omnivore, 2014) While broccoli is seen as a superfood, a persons body still needs the same 2000 calories to fuel it every day. Broccoli is near the top when ranked in missions per calorie. If a person were to eat 2000 calories of chicken to their daily needs intake, their planetary emissions would only be 9.6. However if the same person took 2000 calories of tomatoes to fill their daily caloric needs their planetary emissions would be 12.2. If we look at someone who chooses to be vegetarian base d on the environmental impact of their food choices, its almost worse than those who are omnivores and eat a mix of both. (Kateman, 2017) While religious beliefs can have an impact on societys diets, it is usually expressed as asceticism, so that the motivation is spiritual, rather than ethical. Vegetarianism in these instances is equated with restraint, spirituality and dissent, while meat eating is associated with wealth, strength and social position. (Spencer, 1993) In many different cultures a form of vegetarianism is practiced or encourages. Buddhism is among the most well-known for its vegetarian practices in conjunction with their religion. According to several different studies vegetarians do consume less alcohol and have a lower body mass index is. (Vegetarianism, 2012) However, they were still in worse physical and mental health overall. Vegetarian food is widely thought of to be healthier than that of a traditional meat and vegetable diet; however, cardiologists have found that vegetarian food can be just as bad because it involves eating a lot of sweets, junk food, refined grains, and potatoes. These foods have been linked to a higher risk of heart disease and high cholesterol. All studies show that vegetarians are still at risk for cancer, type-2 diabetes, and heart disease just like everybody else. The higher intakes of vegetables and whole grain products can carry an elevated risk of cancer, allergies, and mental health problems such as depression and anxiety. (It is from not eating all that bacon!) Its also been found vegetarians had poor health practices such as avoiding going to doctors appointments for preventative checkups and vaccines. Also it appears that vegetarians have a lower quality of life and require more medical treatment for cures rather than preventative measures. (Vegetarians are less healthy and have a lower quality of life than meat-eaters, 2018) For men and women, vegetarian diets can be harmful when trying to conceive. Soy products such as tofu, soy sausages, bacon, burgers, and soy milk, yogurt, cheese, and ice cream tend to have a lot of phytoestrogen in them. Men who eat a lot of soy commonly have lower sperm counts than men that dont, even just eating half a serving a day can lower their fertility. The more soy men eat the less sperm they produce. (Konkel, 2009) Along those same lines vitamin A (retinol) plays a healthy role in maintaining a healthy immune system but also helps in both male and female reproduction. Vitamin A helps the male body produce healthy sperm, and for women its not only vital to the production of a healthy ovum, but it also aids with the implantation and sustaining of the pregnancy. The richest sources of vitamin A are cod liver oil, liver, seafood, beef, poultry, eggs, and dairy products. All of these are not vegetarian approved. While people can get synthetic vitamin A fortified in certain food s, they are not the best sources and not consistently the easiest used in the body. There are certain times when vegetarian diets can help those suffering from certain elements to cure or less and their symptoms. Vegetarian diets can help protect against certain cancers and heart disease in some cases. Researchers have found that vegan diets protected against female specific cancers and overall cancers in both genders. It also can be linked to the higher intakes of fiber and phytochemicals and lower intake so saturated fat and cholesterol are among the main factors responsible for these cancer protective benefits. Vegetarian diets are usually higher in fiber. People with higher intakes of dietary fiber are at a significantly decreased risk for heart disease stroke hypertension diabetes gastrointestinal disorders and obesity. (Pollan, 2006) They also found that vegetarian diets are associated with a lower body mass index and increased rates of obesity in children. If a person has high cholesterol switching to a mostly vegetarian diet can cut those cholesterol levels significantly, therefore lowering the rest of heart disease. A vegetarian diet is virtually cholesterol free. Vegetarian diets also help lower the consumption of saturated fat because they are no longer eating the animal fat associated with meat eaters and omnivores. Whenever a person adopts a vegetarian diet they can increase their energy level through the higher consumption of fruits and vegetables in their diet versus beforehand of just meats and carbs. (Foer, 2013) Vegetarian diets generally have a much higher consumption of fruits vegetables but when planning weekly meals, people need to make sure they are balancing their entire day and week with the correct amount of vitamins and nutrients they need. The amount of vegetarian recipes that are available on the internet is astounding but in looking at older cookbooks there are very few recipes for exclusive vegetarian meals because of the way that the American diets has evolved. Some people choose to live their lives without bacon. There are various reasons why someone would want to live the vegetarian lifestyle ranging from health reasons, to environmental tolls. The one thing all vegetarians need to do, regardless of their reasons, is make sure they have a balanced diet to include all of the vitamins and minerals that our bodies need. In this age it is easier than ever to get a full range of nutrients from a plant based diet, and those looking to be vegetarian only need to be resourceful with their food plans. Vegetarianism can be a great way to lose weight or reduce environmental impact, but those who choose this lifestyle also need to be aware of the different nutrients that are not as readily available in plant-based foods as they are in a balanced diet containing meat products References: Foer, J. S. (2013). Eating animals. Vancouver: Access and Diversity, Crane Library, University of British Columbia. H., L., N., V, T. (2009, July 01). Effect of vegetarian diets on bone mineral density: A Bayesian meta-analysis | The American Journal of Clinical Nutrition | Oxford Academic. Retrieved September 25, 2018, from https://academic.oup.com/ajcn/article/90/4/943/4597049 Joy, M. (2011). Why we love dogs, eat pigs, and wear cows: An introduction to carnism: The belief system that enables us to eat some animals and not others. Berkeley, CA: Conari. Kateman, B. (2017). The reducetarian solution: How the surprisingly simple act of reducing the amount of meat in your diet can transform your health and the planet. NY, NY: TarcherPerigee. Konkel, L. (2009, November 03). Could Eating Too Much Soy Be Bad for You? Retrieved September 25, 2018, from https://www.scientificamerican.com/article/soybean-fertility-hormone-isoflavones-genistein/ Leonard, C. (2015). The meat racket: The secret takeover of Americas food business. New York: Simon Schuster Paperbacks. Nestle, M. (2003). Food Politics: How the Food Industry Influences Nutrition and Health. Berkeley and Los Angeles, CA: University of California Press. Ogle, M. (2013). In meat we trust: An unexpected history of carnivore America. Boston: Houghton Mifflin Harcourt. Pollan, M. (2006). The Omnivores Dilemma; A Natural History of Four Meals. New York, NY: The Penguin Press. Spencer, C. (1996). The heretics feast: A history of vegetarianism. Hanover, NH: University Press of New England. Vegetarian or omnivore: The environmental implications of diet. (2014, March 10). Retrieved September 25, 2018, from https://www.washingtonpost.com/lifestyle/food/vegetarian-or-omnivore-the-environmental-implications-of-diet/2014/03/10/648fdbe8-a495-11e3-a5fa-55f0c77bf39c_story.html Vegetarianism. (2012, October 12). Retrieved September 25, 2018, from https://sphweb.bumc.bu.edu/otlt/MPH-Modules/PH/NutritionModules/Popular_Diets/Popular_Diets_print.html Vegetarians are less healthy and have a lower quality of life than meat-eaters. (2018, March 31). Retrieved September 27, 2018, from https://www.independent.co.uk/news/science/vegetarians-are-less-healthy-and-have-a-lower-quality-of-life-than-meateaters-scientists-say-9236340.html Vegetarian Anemia (2018, October 18). [Personal account]. Eggebrecht, T. (2018, September 25). Personal interview.

Wednesday, May 6, 2020

War Poem Comparison Essay - 1727 Words

Gavin Ross Pre-Entry Access Class – English Module Tutors – Aimee McNair and Kevin Wilson Q. In an essay of not more than 1,500 words compare and contrast ONE PAIR of the two pairs of poems printed below. Your answer should exhibiy a clear understanding of each poem’s meaning and tone, and you should consider the effect and importance of formal features, such as rhyme scheme, sound patterning, word choice, figurative language and punctuation. Date handed in : 31st January 2011 This essay will compare the poems â€Å"On Passing the New Menin Gate† by Siegfried Sassoon (1927) and â€Å"Anthem For Doomed Youth† by Wilfred Owen (1917) and decipher whether there are any contrasts of worthwhile note. It will explore the meanings of†¦show more content†¦Sassoon and Owen’s rhetorical style help connect the reader to the events being described and communicate successfully their feelings of anguish about the war. Sassoon and Owen further communicate their contempt for the war and its unforgiving treatment of the soldiers through the use of alliteration. Sassoon says, â€Å"Paid, with a pile of peace-complacent stone† (line 7). The sarcastic use of â€Å"Paid† suggests Sassoon does not believe the Menin Gate to be a worthwhile reward. The personification of the monument when Sassoon says, â€Å"peace-complacent stone† (line 7) creates the idea that the monument has an unjustified feeling of self-worth and import ance and stands arrogantly, believing itself to be a comparable reward to the loss of life and misery endured by thousands of soldiers and families. The repetition of the letter â€Å"p† makes it sound as though Sassoon is spitting his words out in a bitter and degrading manner and is effective in demonstrating his anger about the perceived ignorance displayed by the memorial (Internet 10). Owen also achieves an emphatic effect when he uses alliteration in â€Å"Anthem For Doomed Youth† when he says, â€Å"Only the stuttering rifles’ rapid rattle† (line 3). This harsh sounding repetition of the letter â€Å"r† is used for the purpose of sound imagery to help convey the horrors ofShow MoreRelatedEssay Comparison of Three First World War Poems1162 Words   |  5 PagesComparison of Three First World War Poems The three poems that I will be studying in this essay are â€Å"Dulce Et Decorum Est† by Wilfred Owen, â€Å"Comrades: An Episode† by Robert Nichols and â€Å"Who’s For The Game?† by Jessie Pope. These poems are about the First World War and two of them seem to have a negative attitude criticising and downgrading the so-called spectacular experience of the First World War. In â€Å"Dulce Et Decorum Est† Wilfred Owen seems to mention good aspectsRead MoreDulce Et Decorum Est Comparison with Whos for the Game1550 Words   |  7 Pages The poems I have chosen to compare in this essay are Wilfred Owens â€Å"Dulce Et Decorum Est† and Jessie Popes â€Å"Whos For The Game?†. The two poems I have chosen to compare are both about the first world war. Yet the two poems have very different opinions on the Great War. My first poem, Dulce et decorum, is against the war and the injustice of it all. It is narrated by one of the soldiers who is fighting in the Great War and having to face the horrors of war. On the contrary my second poem, WhosRead MoreDefamiliarization in Relation to Winfred Owens Poem Anthem for Doomed Youth726 Words   |  3 Pages In this Essay I will discuss defamiliarization in relation to Wifred Owen’s poem â€Å"Anthem for Doomed Youth†. I will examine how his use of defamiliarization affects the reader in their understanding of the poem. 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MRI Radiation †Dangers Benefits Free Essays

Magnetic resonance imaging (MRI) is a new technology for making images of the brain and other parts of the body. The technique depends on detection of a phenomenon called nuclear magnetic resonance, and also sometimes called NMR scanning. The discovery and development of MRI imaging is one of the most spectacular and successful events in the history of medical imaging. We will write a custom essay sample on MRI Radiation – Dangers Benefits or any similar topic only for you Order Now The nuclei of some atoms in the body are composed of numbers of nuclear particles. Such nuclei can be detected by sending weak energy signals through very strong magnetic fields. The MRI machine consists of a set of powerful magnets and a source of energy in the same general range used for broadcasting radio. The radio signal is affected in predictable ways by the number of odd-numbered nuclei in its path (Oldendorf; Boller, Grafman and Robertson). The MRI Procedure The MRI contains the massive main magnet, which is always on. The unit structure is approximately six or seven feet high and equally wide. As a patient, you will lie on your back on a special table that slides into the magnet through a two-foot-wide tunnel in the middle of the machine. Whether you go in head or feet first depends on the tissue being imaged. Be prepares for a loud knocking noise; this is not a silent machine. The loud knocking noise is caused by the gradients (small magnets) expanding against the supporting brackets. The MRI scanner will able to pick out voxels (three-dimensional cubes) maybe only one millimeter on each side. It will make a two-dimensional or three-dimensional map of tissue type. The computer will integrate this information and create two dimensional images (the usual) or three-dimensional models. The whole procedure takes from 30-60 minutes (Moe). Advantages and Disadvantages Due to the nature of the magnetic probe used in MRI, this technique possesses several fundamental advantages: 1) tissue can be characterized in a number of ways, 2) any plane can be imaged 3) bone is invisible, so all anatomic regions can be examined, and harper images are produced 4) no contrast medium is required and 5) there is no ionizing radiation, which makes it safe for children and for repeated scanning of the same person 6) the level of detailed exceeds the detail of other imaging techniques. At the present time, there are also several disadvantages 1) he complexity and high cost 2) the long scan time, 3) the noise isolation experienced by patient during scan and 4) the exclusion of substantial fraction of patients dues to pacemakers, metallic artifacts, and inability to cooperate. Furthermore, magnetic strength can be a dangerous thing. Stories abound the magnet’s power to pull metal objects (such as paper clips, keys, scissors, stethoscopes, IV poles, and even oxygen tanks) toward the patient and into the machine. Even worse, accidents have occurred with metal inside a patient. After an MRI, a metal worker went blind because the magnet moved microscopic metal particles in his eyes, damaging their surrounding structures. A survivor of and aneurysm died during an MRI because the magnet tore off the metal clips holding together a blood vessel in her brain, causing her to bleed to death. The patient must stay absolutely motionless during the procedure. (Minor motion does not have as much impact on a CT scan.) Therefore, a sedative is often necessary for a child having an MRI scan. The first three of these are under active development, and improvement can be expected. However, gradient coil noise, pacemakers and metallic artifacts are more fundamental problems for which solutions are not yet apparent (Stergiopoulos). MRI in association with CT Magnetic resonance imaging is another method for displaying anatomy in the axial, sagittal, and coronal planes. The slice thickness of the images vary between 1 and 10 mm. MRI is especially good for coronal and sagittal imaging, whereas axial imaging is the forte of CT. One of the main strengths of MRI is its ability to detect small changes (contrast) within soft tissues, and MRI soft tissue contrast is better than that found in CT images and radiographs. CT and MR imaging modalities are digital-cased technologies that require computers to convert digital information to shades of black, white and gray. The major difference in the two technologies is that in MRI the patient is exposed o external magnetic fields and radio frequency waves, whereas the patient is exposed to x-rays during a CT study. The magnetic fields used in MRI are believed to be harmless. MR scanning can be a problem for people who are prone to develop claustrophobia because they are surrounded by a tunnel-like structure for approximately 30-45 minutes. The external appearance of an MRI scanner or machine is similar to a CT scanner with the exception that the opening is the MR gantry is more tunnel-like. As in CT, the patient is comfortably positioned supine, prone, or decubitus on a couch. The couch moves only when examining the extremities. The patient hears and feels a jackhammer-like thumping while the study is in progress. The underlying physics of MRI is complicated and strange-sounding terms proliferate. Let’s keep it simple: MRI is essentially the imaging of protons. The most commonly imaged proton is hydrogen, as it is abundant in the human body and is easily manipulated by a magnetic field. However other nuclei can be imaged. Because the hydrogen proton has a positive charge and is constantly spinning at a fixed frequency, called the spin frequency, a small magnetic field with a north and south pole surrounds the proton. Remember that moving charged particles creates a surrounding magnetic field. Thus, these hydrogen protons act like magnets and align themselves within an external magnetic field or the needle of a compass. In the MR scanner, or magnet, short bursts of radio frequency waves are broadcast into the patient from radio transmitters. The broadcast radio wave frequency is the same as the spin frequency of the proton being imaged (hydrogen in this case). The hydrogen protons absorb the broadcast radio wave energy and become energized, or resonate. Hence, the term magnetic resonance. Once the radio-frequency wave broadcast is discontinued, the protons revert or decay back to their normal or steady state that existed prior to the radio wave broadcast. As the hydrogen protons decay back to their normal state or relax, they continue to resonate and broadcast radio waves that can be detected by a radio wave receiver set to the same frequency as the broadcast waves and the hydrogen proton spin frequency. The intensity of the radio wave signal detected by the receiver coil indicates the numbers and locations of the resonating hydrogen protons. Although human anatomy is always the same no matter what the imaging modality, the appearances of anatomic structures are very different on MR and CT images. Sometimes it is difficult for the beginner to differentiate between a CT and an MR image. The secret is to look to the fat. If the subcutaneous fat is black, it is a CT image as fat appears black on studies that use x-rays. If the subcutaneous fat is white (high-intensity signal), then it has to be an MR. next, look to the bones. Bones should have a gray medullary canal and a white cortex on radiographs and CT images. The medullary canal contains bone marrow, and the gray is due to the large amount of fat in bone marrow. On a MR image, nearly all of the bone appears homogenously white as the bone marrow is fat that emits a high-intensity signal and appears white. Also, on MR the cortex of the bone will appear black (dark or low intensity signal), whereas on CT images the cortex is white. Soft tissues and organs appear as shades of gray on CT and MR. Air appears black on CT and MR. air appears black on CT and has a low-intensity signal (black or dark) on MR (Moe). Intraoperative MRI At present, MRI is, by far, the most useful imaging modality for visualizing intracerebral tumors. It provides the most clear, detailed, and comprehensive diagnostic information regarding the tumor ad surrounding normal structures. The introduction of MRI and image-guided technology into the operating room thus allows the surgeon to use high-quality, current image data that reflect the surgical reality of brain tissue deformations and shifts that occur after the bone flap has been turned, the dura opened, and the resection begun. Today’s intraoperative MRI systems can be classified into two main groups: 1) the high field strength systems and 2) the low compact systems. Both types of systems have advantages and disadvantages. The high-field strength systems (0.5-1.5 T) are typically mounted on a stationary gantry and have gradient capabilities sufficient to produce full head images of quality comparable to that of diagnostic MRI. Magnetic resonance imaging can satisfy these requirements for therapy. It has excellent anatomic resolution for targeting, high sensitivity for localizing tumors, and temperature sensitivity for online treatment monitoring. Several MRI parameters are temperature sensitive; the one based on the proton resonance frequency allows relatively small temperature elevations to be detected prior to any irreversible tissue damage. Thus, the location of the focus can be detected at relatively low powers, and the accuracy of targeting can be verified. In addition, using calibrated temperature-sensitive MRI sequences, focal temperature elevations and effective thermal doses may be estimated. Such thermal quantification allows for online feedback to ensure that the treatment is safe, by assuring that the focal heating is confined to the target volume and below the level for boiling. Thermal assessment predicts effectiveness by assuring that the temperature history is sufficient to ensure thermal coagulation (Moore and Zouridakis). Conclusion Since the first availability of commercial instruments at the beginning of the 1980s, clinical MR has expanded rapidly in terms of both medical applications and the number of units installed. First considered to be expensive method to create images of inferior quality, it has since established itself as a clinical tool for diagnosis in previously inconceivable applications, and the potential of the method is still not exhausted. MRI has led to the first-scale industrial application of superconductivity and has brought about a grater public awareness of a physical effect previously known only to a handful of scientists. Up to now, the growth and spectrum of applications of MR have exceeded all predictions. The most recent development is that of rendering brain functions visible. Cardiac MR can display coronaries and analyze perfusion of the myocardium and hemodynamics of the heart. Thus, MRI is entering the domain of nuclear medicine. An interesting new application of MRI is its use as an imaging modality during minimal invasive procedures such as ablation, interstitial laser therapy, or high intensity focused ultrasound. With temperature-sensitive sequences, the development of temperature and tissue damage can be checked during heating and destroying of diseased tissue. The sensitivity of MRI to flow helps the physician to stay away from vessels during an intervention. MRI is also used for image-guided surgery, e.g., resection of tumors in the brain. Special open systems have been designed for such purposes, and dedicated non magnetic surgery tools have already been developed (Erkonen and Smith). Works Cited: Boller, Franà §ois, Jordan Grafman, and Ian H. Robertson. Handbook of Neuropsychology. Vol. 9. New York: Elsevier Health Sciences, 2003. Erkonen, William E., and Wilbur L. Smith. Radiology 101: The Basics and Fundamentals of Imaging. 2nd ed. New York: Lippincott Williams Wilkins, 2004. Moe, Barbara A. The Revolution in Medical Imaging. New York: The Rosen Publishing Group, 2003. Moore, James E., and George Zouridakis. Biomedical Technology and Devices Handbook. New York: CRC Press, 2004. Oldendorf, William. Basics of Magnetic Resonance Imaging. Boston: Springer, 1988. Stergiopoulos, Stergios. Advanced Signal Processing Handbook: Theory and Implementation for Radar †¦ New York: CRC Press, 2001.       How to cite MRI Radiation – Dangers Benefits, Essay examples