A sinogram is a test to look at a sinus. A sinus is like a fistula. But instead of connecting two organs, it's like a tube that's closed on one end. Both of these tests use X-rays with a special dye that is injected into the area of the fistula or sinus.
During a Fistulagram
We insert a needle into your fistula, and you will feel warm in your hand, arm and chest. You may get a metallic taste in your mouth. These sensations only last 10-15 seconds. Several x-ray pictures are needed to complete the test.
A Fistulogram or Sinogram is an x-ray procedure to view an abnormal passage (fistula/sinus) between two or more organs. It may include a passage from inside the body, to an opening on the skin. Contrast (x-ray dye) is used to identify the fistula/sinus and what organs are involved.
X-ray fistulography is a technique in which water-soluble radio-opaque contrast is injected into the fistulous track by cannulation of the external opening (or the internal opening in cases of blind fistulas) using a feeding tube, and radiographs are taken to visualize the fistulous track [3].
You may feel a warm sensation as the contrast material is injected into your fistula/sinus. While you may experience discomfort during the procedure, there is usually no pain. The procedure itself will take approximately 30 minutes, and you should expect to spend about an hour in the x-ray department.
How serious is a fistula? Fistulas can cause a lot of discomfort, and if left untreated, may cause serious complications. Some fistulas can cause a bacteria infection, which may result in sepsis, a dangerous condition that can lead to low blood pressure, organ damage or even death.
During the fistulotomy, a cut will be made at the site of the fistula. The fistula is opened surgically to remove the infected area with pus or other fluids. In many cases, stitches are used during a fistulotomy. If stitches aren't used, the wound would be left open and either packed or covered with gauze.
In CT and SPECT imaging, a sinogram is generated by rotating detectors around a patient, and storing the detected projection profiles at each angle in the sinogram, as depicted in the gif above.
A sinogram is a special x-ray procedure that is done to visualize any abnormal opening (sinus) in the body, following the injection of contrast media (x-ray dye) into the opening.
During the procedure:
The nurse will give you pain medication and a sedative, which will help you relax, before the procedure. The nurse will give you more medication if needed. You will feel relaxed, but you will be awake so that you can follow instructions.
During Your Procedure
The interventional radiologist will insert a needle into your fistula, contrast will be injected and several x-ray images will be taken. A fistulagram usually takes one to two hours to complete.
Following your fistulotomy, you may experience some mild to moderate pain or discomfort in your rectal area. You may also experience constipation, difficulty urinating, and possibly some rectal bleeding. The following are some general guidelines for proper care after your procedure.
MR Sinogram is an imaging technique that utilizes radiowaves and contrast material to capture the images of sinuses. Sinuses are the hollow organs within the bones. The scan is used to diagnose abscess or infection of sinus through the identification of its shape and size.
Fistula Definition: A fistula is an abnormal connection or passageway that connects two organs or vessels that do not usually connect. They can develop anywhere between an intestine and the skin, between the vagina and the rectum, and other places. The most common location for a fistula is around the anus.
CT makes use of filtered back projection reconstruction techniques, whereby each projection is convolved with a "filter", and then back projected. When this procedure is performed for all 1000 or so projections, it is possible to achieve a perfect reconstruction of the scanned object.
Iterative reconstruction is an algorithmic method that uses statistical and geometric models to variably weight the image data in a process that can be solved iteratively to independently reduce noise and preserve resolution and image quality.
The most commonly used analytical reconstruction methods on commercial CT scanners are all in the form of filtered backprojection (FBP), which uses a 1D filter on the projection data before backprojecting (2D or 3D) the data onto the image space.
You can make your bowel movements less painful by getting enough fibre and fluids, and using stool softeners or laxatives. Sitting in warm water (sitz bath) after bowel movements will also help. You may notice a small amount of pus or blood draining from the opening of your fistula.
A fistulotomy can take anywhere from 30 minutes to an hour to perform, depending on the size and location of the fistula.
Some fistula surgeries involve placing such a drain to help remove pus and other fluids from infection and heal the fistula. A person may have spotting or bleeding for 1–2 days after the procedure, and pain for 1–2 weeks. In most cases, a person can return to work the day following the procedure if they feel well.
While some fistulas can be treated with antibiotics and other medication, fistula removal surgery may be necessary if the infection doesn't respond to medication or if the fistula is severe enough to require emergency surgery.
Arteriovenous fistula signs and symptoms may include: Purplish, bulging veins that you can see through your skin, similar to varicose veins. Swelling in the arms or legs. Decreased blood pressure.
Women with a rectovaginal fistula, or a leak between the rectum and vagina, may include the passage of foul-smelling gas, stool or pus from the vagina, as well as pain during intercourse.
A fistulogram or sinogram is an x-ray procedure to view an abnormal passage (fistula/sinus) between two or more organs. It may include a passage from inside the body to an opening on the skin.