According to Oxford Dictionaries, an X-ray, also known as a type of radiation is defined as an electromagnetic wave of high energy and very short wavelength (between ultraviolet light and gamma rays), which is able to pass through many materials opaque to light and being absorbed to different degrees by different materials. In medicine, an X-ray is produced by the deceleration of charged particles, especially electrons, or by electron transitions in atoms. An X-ray machine sends these particles through the body. The images are recorded on a computer to produce a radiograph. Structures that are dense will block most of the charged particles and will appear white. A special dye that contains metal or contrast media is used to highlight areas of the body. These areas will also appear white. Structures containing air will be shown as black. Muscle and fat tissues and fluid would be shown as shades of grey.
X-rays were discovered on November 8th, 1895 by Wilhelm Conrad Roentgen (1845-1923), who was a Professor at Wuerzburg University in Germany. He noted that it was a new type of ray and that is capable of penetrating most substances casting shadows of solid objects. He also discovered that it can penetrate the tissues of humans but not bones and metal objects. Approximately a month after the announcement of the amazing discovery, Europe and the United States of America made radiographs which were used to guide surgeons. Six months after, it was used to guide battlefield physicians to located bullets in troops. In 1913, high vacuum X-ray tubes designed by Coolidge became available. It further advanced in 1931 with double the amount of voltage for industrial purposes. After the discovery of X-rays in 1895, French scientist Henri Becque...
... middle of paper ...
MRI. (n.d.). Definition. Retrieved February 6, 2014, from http://www.mayoclinic.org/tests-procedures/mri/basics/definition/prc-20012903
The Role of Radiology in the Future of Sonography : American Journal of Roentgenology: Vol. 190, No. 4 (AJR). (n.d.). The Role of Radiology in the Future of Sonography : American Journal of Roentgenology: Vol. 190, No. 4 (AJR). Retrieved February 7, 2014, from http://www.ajronline.org/doi/full/10.2214/AJR.07.3791
What Is Magnetic Resonance Imaging (MRI)?. (n.d.). WebMD. Retrieved February 8, 2014, from http://www.webmd.com/a-to-z-guides/magnetic-resonance-imaging-mri
contrast medium (medicine). (n.d.).Encyclopedia Britannica Online. Retrieved February 8, 2014, from http://www.britannica.com/EBchecked/topic/135400/contrast-medium
In this essay, the author
Defines an x-ray as an electromagnetic wave of high energy and very short wavelength, which passes through many materials opaque to light and being absorbed to different degrees by different materials.
Describes how x-rays were discovered in 1895 by wilhelm conrad roentgen, a professor at wuerzburg university in germany.
Explains how x-rays evolved into radiographs examining a patient to help doctors identify the problem and allow suitable treatment to take effect.
Explains ultrasound, also known as diagnostic ultrasound or sonography, is an imaging procedure that measures the reflection or transmission of high frequency or ultrasonic waves to determine location, measurement or delineation of deep structures.
Explains that computed tomography (ct), combines x-ray images from different angles and uses computer to produce cross-sectional images of bones and soft tissues.
Explains that magnetic resonance imaging (mri) is an examination that uses a magnetic field and pulses of radio waves to create detailed images of the organs and tissues within the body.
Describes mammography as the compression of the breast in a specially designed machine that x-rays it at lower levels of radiation to analyze breast tissue for anomalies that may lead to breast cancer.
Explains that fluoroscopy is an imaging technique used to obtain real-time moving images of the internal structures of a patient through the use of fluoroscopes.
Explains that the most extensively used opaque medium is barium sulfate, which is swallowed by the patient for examination of his esophagus and stomach. scientists have developed a safer and cost effective nanoparticle-based mri contrast agent for improved diagnosis.
Explains that general x-ray is also developing, from the dark room automatic processor to the digital system.
Concludes that the use of x-rays in medical diagnosis has developed and is continuing to develop.
Explains that magnetic resonance imaging or mri - raymond damadian and paul lauterbur. about.com inventors.
Explains john j wild's history of ultrasound / ultrasonography. kenney, k. (2009, september 24). the history of mammograms.
Cites dr. godfrey hounsfield's national center for biotechnology information. clermont radiology llc. medical imaging center.
Explains the different types of scans, mri, ct, pet/ct, ultrasound, dexa, and x-rays.
Explains the different types of x-rays and how they can be used.
Explains that 3d and 4d sonography history and theory can be found in business information, news, and reports.
Explains the development and evaluation of a new high-sensitivity, region-of-interest, x-ray imaging system for neuro-interventional applications.
Explains the role of radiology in the future of sonography in american journal of roentgenology.
Since the discovery of X-rays in 1895 by Wilhelm Röntgen, radiology has contributed substantially to the medical field. Today, X-rays are still considered to be one of the most important tools in diagnostic imaging. Further advancements in imaging have combined the use of nuclear science and radiography and is known as nuclear medicine.
In this essay, the author
Explains that radiology has contributed substantially to the medical field since the discovery of x-rays in 1895 by wilhelm röntgen.
Explains that nuclear medicine was introduced to the world in 1946 as an "atomic cocktail" and the use of iodine changed from curing cancer to measuring the function of an organ.
Explains that nuclear medicine is similar to backwards x-rays. patients receive iv’s that contain tracers and different areas produce "hot" and "cold" spots.
Explains that nuclear medicine physicians rely heavily on the skills possessed by a nuclear medicine technologist. they must combine computer biology, technology, math, chemistry, and radiation in order to conduct studies.
Opines that nuclear medicine will become the norm as more patients understand the benefits.
Since the beginning of the propitious world, the core aspect that keeps it thriving is the propensity for people to discover innovations; however, progress of the past is, systematically, detrimental to the future. Not long after the revolutionary invention of the X-ray in the late 19th Century, an unprecedented number of medical examiners noticed (unknown to the time) radiation burns all over their body; decades later, an extraordinary surge in cancer cases had arisen. Perhaps, during the course of these years, scientists and researchers desired to further progress the x-ray (into the immense subsidiaries that are here today), and disregarded any flaws in the apparatus. This systematic inclination continues into the present time as Gary Marshall and Shane Keene notes in their 2007 article, “New technologies allow for patients to be overexposed routinely, and also allow for repeats to be taken quickly, making it easier for a technologist to multiply the patients dose without considering the implications” (5). The gaffes of radiology are present not only in the diagnostic setting, but also in the surgical and therapeutic areas. Working with radiation, it is imperative that the staff is aware of mistakes that are potentially fatal not only for patients, but themselves. It is especially important for medical radiologists to be cognizant of pediatric patients. The standard practice of pediatric radiology in the United States is to follow the step-by step formula from which adult patients are treated and diagnosed. There are copious consequences for following this technique since a child naturally has less body mass and a weaker immune and lymphatic system to manage radiation and its adverse effects. Medical radiology, being a...
In this essay, the author
Opines that progress of the past is, systematically, detrimental to the future. the gaffes of radiology are present not only in the diagnostic setting, but also in surgical and therapeutic areas.
Explains that diagnostic radiology has evolved into being the foundation of medical institutions across the nation, yet there are greater risks of calamities.
Explains that a computerized axial tomography (ct) scan provides an in-depth, three-dimensional view of the problem area.
Recommends using magnetic resonance imaging (mri) as an alternative to pediatric x-rays.
Explains that interventional radiology is a viable, non-invasive alternative to subcuticular (open-skin) surgery.
Explains that the highest complication and mortality rate occurs in pediatric patients. the radiation dose limit for all patients including children during any interventional procedure is 70 msv (8 times more than a ct scan).
Explains that interventional radiology procedures are not limited to the heart. incision sites are filled with bodily fluids due to an increased white-blood cell count.
Explains that radiation therapy is one of the most important steps in treating cancer as it relieves many miserable symptoms; however, the tremendous side effects increase as patient size decreases.
Describes three-dimensional conformal radiation therapy, which uses a linear accelerator to deliver gamma radiation to the precise spot. the drawbacks of 3d-crt and imrt overshadow the benefits.
Opines that pediatric radiotherapy may be unnecessary since the average accumulated dose in the course of radiation therapy for children is 20,000 msv. children should attempt to receive as little radiation as possible, but the world needs to know how to accomplish the obstacle.
Opines that the medical imaging field continues to prove itself as a booming industry, but the burdens of its progressions continue to go unnoticed.
States that the canadian interventional radiology association conducted a national survey on radiology in canada.
Explains that during childhood: a cohort study in france. academic search premier.
Opines that a growing concern." internet journal of radiology 5.2 (2007): 4. academic search premier.
Opines that for great artery stenosis in children with congenital cardiac disease, cardiology in the young 22.2 (2012): 178-183.
States that techniques. journal of postgraduate medicine 56.2 (2010): 98-102. academic search premier.
Explains that canadian association of radiologists journal 64.2 (2013): 85-89. academic search premier. web. 19 nov. 2013.
For decades, the effects of radiation has been studied by doctors around the world. X-rays are used in the medical and dental field to take radiographs of certain parts of a person's body. Some have become concerned of the long term and short term effects of having x-rays taken because of the radiation that is exposed. Since the rise of concern, studies have been done to find any type of link between cancer and radiation from x-rays. Specifically, in dental x-rays, researchers have been performing studies trying to prove that radiation from x-rays in the dental office can cause cancer .
In this essay, the author
Explains that x-rays are used in the medical and dental field to take radiographs of certain parts of a person's body. since the rise of concern, studies have been done to find any type of link between cancer and radiation from
Explains that the more x-rays conducted, the higher the chance of being diagnosed with thyroid cancer.
Explains that meningioma is a common form of brain tumor. the new 3-d cone-beam ct machine exposes people up to 60 times the amount of radiation than the original dental x-rays.
Opines that studies are still being done to investigate the cause of thyroid cancer. they state that dental x-rays are not the immediate cause.
Explains that studies link dental x-rays to brain tumours, thyroid cancer, and low birth weight.
Explains that dr. oz believes that x-rays raise the risk of thyroid cancer, while leonard wartofsky argues that radiation exposure is not enough to cause harm.
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 diagnosis of certain diseases, disorders, and injuries. MRI is safe for most people, but it uses a powerful magnet and so cannot be used on people with metal implants, such as pacemakers or artificial joints (World Book, 2000).
In this essay, the author
Opines that magnetic resonance imaging has the potential of completely replacing computed tomography. if history was rewritten, and ct invented after mri, nobody would bother pursue ct.
Explains that magnetic resonance imaging, or mri, is a technique used in medicine for producing images of tissues inside the body.
Describes how an mri unit consists of a magnet, devices for transmitting and receiving radio waves, and computer. the magnetic field causes the nuclei of certain atoms inside the body to line up.
Opines that mri technology is still in its infancy. it has been in widespread use for less than 20 years (compared with over 100 years for x-rays).
Explains that there are always advantages and disadvantages in anything that is developed in the area of technology. mri is no different.
Explains that functional brain mapping is helping researchers better understand how the brain works. research is under way in a few institutions to image the ventilation dynamics of the lungs.
Explains that mri is a tool to diagnose, visualize, and evaluate parts of our body.
Cites lauterbur, paul c., liang, zhi-pei, mattson, james, and simon, merrill, the story of mri.
A radiologic technologist (radiographer) who does an x-ray to the patient is one of the most important professions in a medical field. It is a part of helping sick people who are in the hospital as a check-in patients or outpatients. It is necessary to check the broken bone or internal part of the body of a malaria patient.
In this essay, the author
Explains that some researchers may have found a critical weakness in plasmodium falciparum (davis), the parasite that causes malaria.
Explains that malaria is a common disease and deadly infection that most contained in hot and tropical areas of the world.
Explains that malaria is caused by a mosquito bite that infected with parasites which can infect human's red blood cells.
Explains that patients with malaria may develop typical symptoms like chills, fever, and sweating every one, two, or three days.
Explains that treatment for p. falciparum malaria is necessary because it is lethal if not treated quickly. the three common species of malaria are less serious, and not life-threatening.
Radiology involves many areas of the health field. Many different types of health services use radiology. One specialty is Radiologic Technology. Radiology goes back to the 1800’s. Radiography is the use of electro magnetic radiation to create an image on a photographic film (“Radiology” Time). The Radiologist Technician is one who operates equipment that creates images of a patient’s body tissue, organs, and bones for the purpose of medical diagnosis and therapies (“Radiologic Technologists”). An examination of the field of radiology is necessary in order to fully understand the work of a Radiologic Technician. An examination of the history, the use of radiology, and the risks involved, who performs the radiography, and who oversees the entire procedure is further essential to understanding this growing field.
In this essay, the author
Explains that radiology is a modern specialty that crosses geographical boundaries. it conserves life and health by eliminating surgeries where many of deaths occur.
Explains that radiology involves many areas of the health field, including the use of electro magnetic radiation to create an image on a photographic film.
Explains that the risk involved in a medically justified and properly conducted x-ray examination is usually so low that it is far outweighed by the expected medical benefit.
Explains the differences in pay depending on where in the country the technologists are located and the need base that area has.
Explains that ferguson's career guidance center and facts on file, inc. have published a guide to medical etiquette: radiology.
Explains that they want to be a sonographer. society of diagnostic medical sonography.
Modern medicine is capable of treating a tremendous range of human disease and injuries, but the usefulness of all medical specialties depends on accurate diagnosis. Virtually every conceivable medical specialty relies on radiological technologies to provide formal diagnoses, making radiology one of the most important of all medical specialties. Radiologists enjoy some of the best working conditions in modern medicine and typically experience very positive employment conditions. Consequently, their services are generally in very high demand, with many starting out with six-figure annual incomes immediately after completion of their professional training.
In this essay, the author
Explains that modern medicine is capable of treating a tremendous range of human disease and injuries, but the usefulness of all medical specialties depends on accurate diagnosis.
Explains that radiologists are physicians specializing in interpreting diagnostic images in connection with diagnosing illnesses and injuries and monitoring medical conditions in relation to many other areas of clinical medicine.
Explains that radiology is one of the few so-called "physical-science"-based fields of medicine, making it a challenging and rewarding application of an academic interest in science.
Explains that radiology offers more than a dozen distinct areas of even greater specialization within the field. some of those specialty areas involve direct medical intervention, such as in the case of radiation oncology.
Explains that breast imaging involves diagnosing diseases of the breast through mammography, ultrasound, magnetic resonance imaging (mri), and tissue biopsies. cardiovascular radiology uses x-rays, computer axial tomography (cat scans), mri, and ultrasound to diagnose and treat medical conditions.
Explains that they are currently enrolled in the academic program that leads to certification as a radiological technologist. they will be responsible for operating some of the most sophisticated imaging equipment in existence.
Opines that their degree program is not all about academic studies, although it is heavily science-oriented. they emphasize atomic physics and chemistry, but they also offer substantial opportunity for practical experience.
Opines that the tmcc radiologic technologist program has been tremendously rewarding for them. it is a challenging academic curriculum that allows hands-on experience working with scientific equipment.
Born on March 27, 1845, was Wilhelm Conrad Röntgen the man who discovered Radiology. He was born at Lennep in the Lower Rhine Province of Germany as the only child. He went through a lot growing up and met some people that helped influence his life along the way. His name is associated with his discovery of rays which he called x-rays. In 1895, he discovered x-rays; radiology has advanced from a scientific curiosity to a medical necessity. It is very interesting that most of the first people who worked with radiology never had any medical profession. That’s when people started to try to get radiology out to the public by advertising television commercials. Some of the first people who were interested in using this equipment were Photographers.
In this essay, the author
Explains that wilhelm conrad röntgen discovered x-rays in 1895, and that radiology became a medical necessity.
Explains that the core system for the electronic management of imaging departments would be the radiology information system (ris), which includes scheduling patients, managing resources, tracking examination performance, interpretation, and results distribution and billing.