A Study on the Prevention of Computed Tomography Artifacts

1. Describe the artifact and the course or context in which the artifact was developed.

Merriam-Webster defines the word artifact as something created by human usually for a practical purpose: an object remaining from a particular period. In my family, there aren’t a lot of artifacts, but we do have a special artifact that means a lot to my mom’s side of the family. Similar to the way Brazilians celebrate Brazilian Carnival, in New Orleans, we celebrate Mardi Gras. Celebrating Mardi Gras is my family tradition. But my mom and I haven’t been in years due to school complications and other commitments. Every year when my mom and I miss Mardi Gras we go to the basement and find different Mardi Gras beads, and where them all day.

160. This is quite a significant jump from 1987, when the NCRP Report No. 93 stated that a mere 11% was attributed to “medical imaging with ionizing radiation.”1 (pp169-170CT) In 2012, Kyle Morford and his colleagues reported that “over the past decade CT has increased from 4% to 11% of all diagnostic imaging studies.”2 (p45) This increase in number of scans come with an increase in patient dose. When a chest CT is performed, a patient gets a dose of 8 mSv. When a radiographic exam of the chest is done in two projections, the dose is around 0.02mSv. Of course, there are patient factors and contrast administration to consider, but the difference between the two modalities is roughly 400% increase.3 (p705) Knowing this, why is shielding not practiced in computed

Computed tomography is used in the emergency setting, but it is not useful in predicting short- or long-term outcomes in sports related concussion. Magnetic resonance imaging (MRI) is more sensitive than CT, but the correlation between focal structural lesions detected by conventional MRI is controversial since T1- or T2-weighted MRI images may not be sensitive to the neuropathology of milder injuries There has been increasing interest in diagnosing and prognosticating after concussions using susceptibility weighted imaging (SWI), diffusion tensor imaging (DTI), magnetic resonance spectroscopy (MRS) and functional magnetic resonance imaging (fMRI).

When it comes to medical imaging, there are several different options to choose from for different testing. There are similarities and differences; pros and cons to each. This paper will discuss MRI, CT, and ultrasound. They each have important things to know regarding radiation dose, cost, and reasons to use one over another.

Such as Imaging – absorbed by material such as bone, enabling images of the bone to be observed

My artifacts all belong in the makeup genre. My first artifact would fall under the sub genre of picture/text and my other two artifacts

Schein (as cited in Baumgartner, 2009) describes artifacts as follows: ‘At the surface we have the level of artifacts, which include all the phenomena that one sees, hears, and feels when one encounters a new group with an unfamiliar culture. Artifacts would include the visible products of the group such as the architecture of its physical environment, its language, its technology and products, its artistic creations, and its style as embodied in clothing, manners of address, emotional displays, myths and stories told about the organization, published lists of values, observable rituals and ceremonies, and so on’.

Artifact: An object made by a human being, typically an item of cultural or historical interest. When I began to work on this paper it took a lot for me to think of something that held a special place in my heart to bring to class, but upon many hours of racking my brain I found one item that provides me more comfort than any material thing in my house, The Complete Tales and Poems of Edgar Allen Poe. In my speech class my teacher assigned a project to recite a piece of literature and through another session of searching high and low I found my love for Edgar Allen Poe through the poem of For Annie. The depth and contrast of his words depicting his dedication to one person no matter what the outside world thought absolutely astounded me. Growing

When waxy materials accumulate and build up inside the coronary arteries it is makes substance called plaque, this plaque is one of the main causes for chronic heart diseases (CHD).

Arterial calcifications, for example in the coronary arteries, may be detected in vivo (in a living person) by methods such as electron beam computed tomography (EBCT) coronary arteriography, plain film X rays, fluoroscopy, intravascular ultrasound, MRI and CT scan. EBCT and fluoroscopy are the most commonly used techniques in the blood vessel investigations, while CT scans are very sensitive for the detection as well as the localization of intracranial calcifications. Calcifications produce the appearance of high-density material on CT scans and X-rays.

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.

CT scan is a computerized tomography, it is when slices of images are put together to make up a three-dimensional image of the body produced using an advanced x-ray. It is used to diagnose medical diseases. It has improved widely to provide comfort to patients as the scan can be done quickly. It displays high-resolution images assisting doctors to make diagnosis. For example, the CT scan can help doctors to visualize small nodules or tumors, which they cannot see with a plain film X-ray.

Artifacts and behaviors include any tangible, overt or verbally identifiable elements in an organization such as architecture, furniture, dress code, office jokes etc.

The radiograph, one of the most common diagnostic imaging tools utilized in this field, possesses a very important component called contrast. Contrast helps radiologists perceive image detail and glean information from the area of interest. Radiation Technologists, or Rad-Techs, should always ensure that radiographs have the right amount of contrast so that the radiologist can easily read them for faster diagnosis.