A sinus x-ray is a picture of the air-filled cavities in the front of the skull.
Alternative NamesParanasal sinus radiography; x-ray - sinuses
How the test is performedX-rays are a form of electromagnetic radiation -- like light, but of higher energy. They can pass through the body to form an image on film. Structures that are dense (such as bone) look white, air looks black, and other structures are shades of gray.
A sinus x-ray is taken in a hospital radiology department or your health care provider's office. You will be asked to sit in a chair so that any fluids in the sinus may be easily seen on the pictures. The technician may place your head in different positions as the pictures are taken.
How to prepare for the testTell your doctor if you are pregnant. Remove all jewelry.
How the test will feelGenerally, there is little or no discomfort associated with x-rays.
Why the test is performedThis test is performed when symptoms of sinusitis or other sinus disorders are present.
What abnormal results meanThe x-ray may detect tumors, obstructions, infections, and bleeding.
Additional conditions under which the test may be performed include:
There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk of most x-rays is smaller than other risks we take every day. Pregnant women and children are more sensitive to the risks of x-rays.
Special considerationsA CT scan of the sinuses is often preferred over a sinus x-ray, because it shows more detail.
A sinus x-ray is a picture of the air-filled cavities in the front of the skull.
Alternative NamesParanasal sinus radiography; x-ray - sinuses
How the test is performedX-rays are a form of electromagnetic radiation -- like light, but of higher energy. They can pass through the body to form an image on film. Structures that are dense (such as bone) look white, air looks black, and other structures are shades of gray.
A sinus x-ray is taken in a hospital radiology department or your health care provider's office. You will be asked to sit in a chair so that any fluids in the sinus may be easily seen on the pictures. The technician may place your head in different positions as the pictures are taken.
How to prepare for the testTell your doctor if you are pregnant. Remove all jewelry.
How the test will feelGenerally, there is little or no discomfort with x-rays.
Why the test is performedThis test is performed when you have symptoms of sinusitis or other sinus disorders.
What abnormal results meanThe x-ray may detect tumors, blockages, infections, and bleeding.
The test may also be performed for conditions such as:
There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk of most x-rays is smaller than other risks we take every day. Pregnant women and children are more sensitive to the risks of x-rays.
Special considerationsA CT scan of the sinuses is often preferred over a sinus x-ray, because it shows more detail.
ReferencesAygun N, Zinreich SJ. Overview of diagnostic imaging of the head and neck. In: Flint PW, Haughey BH, Lund LJ, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2010:chap 11.
Reviewed ByReview Date: 08/31/2011
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Seth Schwartz, MD, MPH, Otolaryngologist, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
the mission was to find white dwarfs a category of stars
Penumbra is lack of sharpness of the film. It is a fuzzy, unclear area that surrounds a radiographic image and is affected by focal spot size(smaller the better), film composition(larger the size of crystals less sharp the image), and movement during the exposure.
Several reasons: to make for a training place for Astronauts to actually learn to live in free-fall for long periods of time, a place to do experiments, a stopping point or a "warehouse" for other programs, a storage facility, a telescope (radio, visual, xray, infrared and ultraviolet.) For sending men to Mars mission it will take at least 3 years (the whole thing- get there do stuff, get back) so we need a real training facility to prepare the Astronauts. A space station is a good place to make hops from: from surface to low earth orbit, orbit to the moon. The moon to Mars. Mars to the Asteroids. Asteroids to the moons of Saturn and Jupiter. Each big jump can be made safer for humans by having working stations between each location. It's slow, expensive and slow. But better slow than never.
there are loads. 1.Telescopes. 2.Spectroscopes 3. Radio Telescopes 4.Xray telescopes 5. gamma ray telescopes 6 infra red telescopes 7. parallax 8. space telescopes
There is no antonym. An xray is a wavelength. There is no opposite.
when taking a dental xray how do u make it appear on the xray more darker in color?
had a chest xray, there was a shadow over my heart what is it
You should check out RC XRAY. They are an online dealer who only sells XRAY RC cars and parts through their store. This includes the XRAY M18T PRO.
No. Neither X-Ray nor xray are allowed in Scrabble.
XRAY Model Racing Cars was created in 2000.
Yes, XRAY is a company. If you are referring to the electromagnetic radiation, x-ray what you mean.
An xray technician is commonly referred to as a radtech or radiation technician in a medical setting.
DENTSPLY International Inc. (XRAY) had its IPO in 1987.
xray tech...how needs doctors anyway!
If they are calcified, such as an aorta that has plaque build up. Abdominal aortic aneurysms can sometimes be seen on xray in this situation. However, in general, arteries do not show up on xray.
no