In some patients, contrast agents may cause allergic reactions, or in rare cases, temporary kidney failure. However, if neither of those can provide the answers needed, or there is an emergency or other time constraint, CT may be an acceptable alternative imaging option. In general, if imaging of the abdomen and pelvis is needed, doctors prefer to use exams that do not use radiation, such as magnetic resonance imaging (MRI) or ultrasound. Credit: iStockĪ CT scan in a pregnant woman poses no known risks to the baby if the area of the body being imaged isn’t the abdomen or pelvis.
CT images of the heart and coronary artery. However, the risk of developing cancer from x-ray radiation exposure is generally small. This is a risk that increases with the number of exposures added up over the life of an individual. However, CT scans use x-rays, and all x-rays produce ionizing radiation. Ionizing radiation has the potential to cause biological effects in living tissue. An early diagnosis of these conditions could potentially be lifesaving. This method has many advantages including the ability to rotate the 3D image in space or to view slices in succession, making it easier to find the exact place where a problem may be located.ĬT scans can diagnose possibly life-threatening conditions such as hemorrhage, blood clots, or cancer. Image slices can either be displayed individually or stacked together by the computer to generate a 3D image of the patient that shows the skeleton, organs, and tissues as well as any abnormalities the physician is trying to identify. This process continues until the desired number of slices is collected. The x-ray scanning process is then repeated to produce another image slice.
#SPACESHIP CONTROL PANEL HOLOGRAM WALLPAPER FULL#
When a full slice is completed, the image is stored and the motorized bed is moved forward incrementally into the gantry. The thickness of the tissue represented in each image slice can vary depending on the CT machine used, but usually ranges from 1-10 millimeters. As the x-rays leave the patient, they are picked up by the detectors and transmitted to a computer.Įach time the x-ray source completes one full rotation, the CT computer uses sophisticated mathematical techniques to construct a two-dimensional image slice of the patient. Instead of film, CT scanners use special digital x-ray detectors, which are located directly opposite the x-ray source. During a CT scan, the patient lies on a bed that slowly moves through the gantry while the x-ray tube rotates around the patient, shooting narrow beams of x-rays through the body. I probably spent close to 6-8 hours updating all the drawings, cutting them out on paper, taping the paper to the panel, drilling the holes, and cutting out the material.įor cutting I HIGHLY recommend using a Dremel with a cutoff wheel - see the tools section.Unlike a conventional x-ray-which uses a fixed x-ray tube-a CT scanner uses a motorized x-ray source that rotates around the circular opening of a donut-shaped structure called a gantry. You pick a weak material and it will break in half on you before you are done. you make a bad cut on the panel and it's going to look bad. SO - pick a material that isn't going to break before you finish your work. You are going to have a LOT of work making all of the cuts, drilling the holes and fitting each of the panels into the overall panel. I can see EXACTLY the material I need to remove so the panel fits.
There I can see the 4 holes I need to drill to mount each panel. I print each of these out and masking tape them to the overall panel (first picture) The image on the right represents the hole I need to cut so that all of the components on the panel will drop into the panel. I don't drill holes for individual lights or switches. THIS is what I need to cut out on the overall panel. If you look at the last three images you can see the squares around the lights and switches. Then what I do - HIGHLY recommended - is - I go back to your cad program and determine what size hole in the overall panel I need to cut. You can cut a piece of cardboard that represents the size of the panel (or tape a square with masking tape on the kitchen table) as a boundary when doing the layout. We knew we were going to have a couple of stickers on the panel so we left room for those. So what I do is lay the panels out on the kitchen table and see how they are going to work together. This is by far the most tedious part of the project.
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