Mesenteric arteriography is an x-ray exam of the blood vessels that supply the abdominal area, including the small and large intestines.
Alternative NamesAbdominal arteriogram; Arteriogram - abdomen
How the test is performedThis test uses x-rays and a special dye (contrast material) to make blood vessels show up on the images.
This test is done in a hospital. You will lie on an x-ray table. You may ask for a sedative if you are anxious about the test.
The health care provider will shave and clean the groin area. A numbing medicine (anesthetic) is applied, and a needle inserted into an artery. A thin flexible tube called a catheter is passed through the needle, into the artery, and up through the main vessels of the belly area and chest until it is properly placed into a mesenteric artery. The doctor can see live images of the area on a TV-like monitor, and uses them as a guide.
Contrast dye flows through the catheter into the blood vessels. X-ray images are taken. The catheter is occasionally flushed with saline solution containing a drug called heparin to help keep blood in the tube from clotting.
Your pulse, blood pressure, and breathing are monitored during the procedure. After the x-rays are taken, the needle and catheter are withdrawn.
Pressure is immediately applied to the puncture site for 10-15 minutes to stop the bleeding. After that time the area is checked and a tight bandage is applied. The leg should be kept straight for an additional 4 hours after the procedure.
How to prepare for the testYou should not eat or drink anything for 8 hours before the test.
You will be asked to wear a hospital gown and sign a consent form for the procedure. Jewlery should be removed from the area being imaged.
Tell your health care provider:
The x-ray table is hard and cold, but you may ask for a blanket or pillow. You may feel a brief sting when the numbing medication (anesthetic) is given. You will feel a brief sharp pain as the catheter is inserted into the artery, and some pressure as it is moved into place.
As the dye is injected, you will feel a warm, flushing sensation. You may have tenderness and bruising at the site of the injection after the test.
Why the test is performedThis test is done:
A mesenteric arteriogram may be performed after more sensitive nuclear medicine scans have identified active bleeding. The radiologist can then pinpoint and treat the source. See: Endovascular embolization.
Normal ValuesResults are considered normal if the arteries being examined are normal in appearance.
What abnormal results meanAbnormal results may be due to
There is some risk of the catheter damaging the artery or knocking loose a piece of the artery wall, which can reduce or block blood flow and lead to tissue death. This is a rare complication.
Other risks include:
Inferior mesenteric
Superior Mesenteric Artery
Inflamation of the lymph nodes due to a pathogen is the cause of Mesenteric Adenitis.
Inflamation of the lymph nodes due to a pathogen is the cause of Mesenteric Adenitis.
The superior mesenteric
Probably the inf mesenteric vein
AnswerThe portal confluence is the area where the superior mesenteric vein and the splenic vein meet. They run posterior to the pancreas and form the portal vein.
The Ganglion is a fusion of nerves when defined in common terms. Superior means Above, Mesentric- Intestine(large), Ganglion (brain in the earth worm) In the upper part of the superior mesenteric plexus close to the origin of the superior mesenteric artery is a ganglion, the superior mesenteric ganglion. The superior mesenteric ganglion is the synapsing point for one of the pre- and post-synaptic nerves of the sympathetic division of the autonomous nervous system. This nerve goes on to innervate part of the large intestine.
The hepatic portal vein is created by the anastamoses between the superior mesenteric vein and spleinc vein. It is arguable that the inferior mesenteric vein joins at this same anastomoses but generally it actually joins the splenic vein which then meats the sup. mesenteric vein as stated above. The veins that drain into the portal vein (ie above the ansastmoses between the splenic and sup. mesenteric) are the cystic vein, the right gastric vein and the posterior-superior part of the pancreaticoduodenal vein.
The Inferior Mesenteric Vein (iMV) drains into the splenic vein. The splenic vein ultimately "meets up" with the Superior Mesenteric Vein (SMV) to form the Hepatic Portal Vein (HPV)
mesenteric
Superior mesenteric vein