Question 1: The computed tomography (CT) scan is a procedure that uses x-rays and digital technology to construct conception of the body. It can make a reflection of every part of the body, for example bone and blood vessels.CT scans are used to examine the inner structures of the body which cannot be seen by human eye.Examples are blood cots or tumors.CT scan can also be used to measure precisely the density of bone in assess osteoporosis.
Question 2: The writers draw out that CT scans can be useful and harmful to us.CT scans can be used to detect the diseases in your body but at the same time,it can also harm our body due to the expose to radiation which can possibly cause cancer.CT scans is good at identifying diseases fast for the patient to get treatment immediately but it is actually giving out lots of radiation which may cause cancer.CT scans is indifferent depending on the situation.
Question 3: CT scan is a fast and painless way to diagnose diseases which human eyes cannot detect.Although CT scan is not a cure for the disease but it is sure to facillate the diagnosis.This is important as it may be used to detect life-threatening diseases which may need an immediate treatment.People normally abuses the use of CT scans and these people may have a higher chance of getting cancer as they are exposed to a huge amount of radiation.The more and often you are exposed to radiation,the higher chance you would probably get cancer.Although CT scans is
* Computerized tomography (CT) or magnetic resonance imaging (MRI) scan. CT scans use computers to create more-detailed images than those produced by conventional
- Even though the X-ray expose patient to harmful radiation it is used to see inside the human body and diagnose broken bones, gallstones and later tuberculosis.
Opponents of body scans argue that the scans put lives at risk. They believe that because radiation can cause harmful diseases such as cancer. J.D Heyes says, “As for the TSA full-body scanners at airports, those could cause cancer”. Heyes is suggesting that if a person travels he or she is putting themselves at risk when it comes to getting a body scan. Additionally body scanners cause radiation just like any other types of scanners such an X-Ray, this is important because the more radiation you passed through your body the more in danger you are of getting cancer. In the article “Doctor warns about health risks of TSA body scanners” by J.D Heyes talks about how X-rays are unhealthy for the body. “In the 1960s, when everybody went to
As with MRI, Computed Tomography can also be used to scan the body from head to toe. The procedures performed in CT can be either invasive or non-invasive and are used to visualize both soft tissues and bone. CT is utilized for both biopsies and drainage studies. This modality uses algorithms to produce scans of the various body parts, which need to be changed when imaging soft tissues versus bone tissue. A CT scan can also produce 360 degree images with just one scan.
The risk to benefit ratio must be weighed before giving a patient that much exposure. “A chest CT typically delivers more than a hundred times the radiation dose of a routine frontal and lateral chest x-ray” (NCBI, 2009). Computed tomography is the method of choice for several issues regarding the head and neck, and chest and abdomen. It is used for trauma to the head or neck, frequently following a car accident. It can be used to look for hydrocephalus, brain bleeds, or even a
"So why get registered? Let 's take for an example of Cedars-Sinai Medical Center in Los Angeles. They were not fully aware of how much radiation their brain scans were giving off and doctor 's were astonished by what they discovered. "The overdose was discovered when a patient reported lost patches of hair following a CT scan. The error remained unchecked for 18 months, involved more than 200 people, and exacerbated existing concerns that patients nationwide are being exposed to excess radiation during medical testing. Diagnostic imaging tests have increased Americans ' average radiation exposure seven times since 1980. Increased exposure leads to increased cancer risk although they claim that no one suffered any long-term damage from their overexposure at Cedars-Sinai, there’s no guarantee that this is the case. Some of the more than 200 patients affected received twice as much radiation as the average cancer patient would receive in one treatment, and these people did not have cancer cells to eradicate. And it’s already known that increased exposure to radiation increases your cancer risk. In fact, according to John Gofman, MD, PhD, there is strong evidence that 50 percent of the death rate from cancer, and 60 percent of the death rate from ischemic heart disease today are induced by ionizing radiation treatments. The concept of x-ray-induced cases means “cases that would not exist were it not for exposure to x-rays.”
The topic of the debate is whether computed tomography (CT) should be used as a screening tool annually for lung cancer. In other words, does the risk of radiation during CT screening outweigh the benefit of diagnosing lung cancer? Our group’s main argument for the pro side was using the study, which displayed the effectiveness of screening. From the 31,567 asymptomatic individuals screened, 412 of them actually had lung cancer. When treated they had a 10-year survival rate of 88%. This demonstrated that there is a higher survival rate when the cancer is detected in clinical stage I, in which the cancer is curable. Before the research I had a neutral standing for the argument because of lack of knowledge on the topic.
Computed tomography (CT) is one of the most important tools in diagnostic imaging, but is it safe? While CT scanning is extremely accurate in its ability to image bone, blood vessels and soft tissue, a single CT scan subjects the human body to between 150 and 1,100 times the radiation of a conventional x-ray (Storrs, 2013). Since Robert S. Ledley invented the CAT-Scan in 1975, researchers have been working hard to determine if CTs may increases a patient’s risk of getting cancer due to the dramatic increase in radiation.
The CT is also known as a CAT scan, and was first discovered in 1972. Godfrey Hounsfield, a British engineer, invented the CT along with help from Allan Cormack of South Africa. Hounsfield worked for EMI Laboratories in England, and Cormack was a physicist at Tufts University located in Massachusetts. The first CT was a full body machine and was available for us by the 1980’s. When the first CT’s were distributed, only about 6,000 of them were distributed in the United States, whereas 30,000 were distributed around the world. In the beginning, the CT machine delivers imagines that were not available before. However, they were not the best of quality, and took quite some time to gather. Now CT scanners can collect almost perfect images in seconds (“Brief history of CT”). In the end, the CT machine has come a long way, and is very beneficial for hospitals to
Nuclear medicine is traced back to all sorts of sciences like physics, engineering, and chemistry. It is said that John Lawrence is the father of nuclear imaging because he was the first person ever to treat a leukemia patient with a radioisotope. From then on, a number of doctors experimented with patients with blood disorders and cancer by use of radioisotopes and were successful as well. One doctor’s procedure to halt the growth of cancer on the thyroid became the turning point in medical history. The beginnings of organ screening, for example PET scans, were born.
Computed tomography known as CTs uses x-Rays to look through your body. These are the same x-Ray which are used to make plain x-Ray pictures. Then the computer puts together those plain films to get pictures of your inside. CT scanners bombard the human body with x-ray beams, which can damage DNA and create mutations that spur cells to grow into tumors. The problem with CT scans from health point of view is that they involve exposing the patient to ionizing radiation, which results in an increased lifetime risk of cancer. A single CT scan exposes the patient's body to 200-1000 plain x-Rays film. The bigger the body part, the more radiation needed.
The journal article "Radiation Protection in Computed Tomography imaging" wrote by Jason Bond, R.T. (R). Radiologic Technology published the article in July/August 2016. In the article, the author addressed radiation protection methods in Computed Tomography Imaging. The author believes best CT image and achieve ALARA, require proper competency of the radiologic technologists and personnel. The author highlighted the importance of proper training, be familiar with dose-saving features and staying competency in lower radiation dose. The author stated the importance of lower radiation dose in Computed Tomography Imaging by comparing the chest CT exposure dose to a routine chest radiograph. "A routine chest radiography, for example, delivers a dose of approximately 0.02 mSv to the patient, whereas a chest CT delivers a dose of approximately 8 mSv, a 400-fold increase between the 2 modalities (Bond, July/ August 2016)." The author using qualitative data support and summarized the effective methods of radiation protection methods in Computed Tomography Imaging. The author using the recent reference to back up his hypothesis, all reference was chosen is within five years. The author concluded, to achieve
Modern medical technology allows physicians to capture detailed images of the body for diagnosing and treatment planning of various health issues. Radiologists use imaging technologies to diagnose or treat diseases. Interventional radiology is the performance of medical procedures with the guidance of imaging technologies. Acquisition of medical imaging is usually performed by a radiologic technologist and the results are interpreted by Radiologists, medical doctors that specialize in radiology. While Magnetic Resonance Imaging (MRI) and Computed Tomography Scan (CT) are useful for diagnosing and treating illnesses, each has their own health risks and benefits.
Studies have shown that computed tomography (CT) (a series of detailed pictures of areas inside the body from different angles; the pictures are created by a computer linked to a x) may be more effective than traditional chest x-rays to detect asbestos-related lung abnormalities in individuals who have been exposed to asbestos.
An Electroencephalogram is the measurement of electrical activity in different parts of the brain and the recording of such activity as a visual trace. One important advantage is the ability to see brain activity as it unfolds in real time, at the level of milliseconds. One disadvantage is that it's hard to figure out where in the brain the electrical activity is coming from. A CT scan is a special X-ray tests that produce cross-sectional images of the body using X-rays and a computer. One advantage is that in a CT image, overlapping structures are eliminated, making the internal anatomy more apparent. CT images allow radiologists and other physicians to identify internal structures and see their shape, size, density and texture. One disadvantage