主动脉血管造影术

定义

主动脉血管造影术 is a procedure that uses a special dye and x射线 to see how blood flows through the aorta. 主动脉是大动脉. It carries blood out of the heart, and through your abdomen or belly.

血管摄影使用 x射线 and a special dye to see the insides of the arteries. Arteries are blood vessels that carry blood away from the heart.

选择的名字

Angiography - aorta; Aortography; Abdominal aorta angiogram; Aortic arteriogram; Aneurysm - aortic arteriogram

如何执行测试

This test is done at a hospital. Before the test starts, you will be given a mild sedative to help you relax.

• 你身体的一部分, most often in your arm or groin area, is cleaned and numbed with a local numbing medicine (anesthetic).
• A radiologist or cardiologist will place a needle into the groin blood vessel. A guidewire and a long tube (catheter) will be passed through this needle.
• The catheter is moved into the aorta. The doctor can see live images of the aorta on a TV-like monitor. X-rays are used to guide the catheter to the correct position.
• Once the catheter is in place, dye is injected into it. X-ray images are taken to see how the dye moves through the aorta. The dye helps detect any blockages in blood flow.

After the x射线 or treatments are finished, the catheter is removed. Pressure is applied to the puncture site for 20 to 45 minutes to stop the bleeding. After that time, the area is checked and a tight bandage is applied. The leg is most often kept straight for another 6 hours after the procedure. You should avoid strenuous activity, such as heavy lifting, for 24 to 48 hours.

如何准备考试

You may be asked not to eat or drink anything for 6 to 8 hours before the test.

You will wear a hospital gown and sign a consent form for the procedure. Remove jewelry from the area being studied.

Tell your health care provider:

• 如果你怀孕了
• If you have ever had any allergic reactions to x-ray contrast material, 贝类, 或者碘物质
• If you are allergic to any medicines
• Which medicines you are taking (including any herbal preparations)
• If you have ever had any bleeding problems

You will be awake during the test. You may feel a sting as the numbing medicine is given and some pressure as the catheter is inserted. You may feel a warm flushing when the contrast dye flows through the catheter. This is normal and most often goes away in a few seconds.

You may have some discomfort from lying on the hospital table and staying still for a long time.

In most cases, you can resume normal activity the day after the procedure.

为什么要进行测试

Your provider may ask for this test if there are signs or symptoms of a problem with the aorta or its branches, 包括:

• 主动脉瘤
• 主动脉夹层
• Congenital (present from birth) problems
• AV畸形
• 双主动脉弓
• 主动脉缩窄
• 血管环
• 主动脉受伤
• Takayasu指出动脉炎

异常结果意味着什么

异常结果可能是由于:

• 腹主动脉瘤
• 主动脉夹层
• 主动脉瓣返流
• Congenital (present from birth) problems
• 双主动脉弓
• 主动脉缩窄
• 血管环
• 主动脉受伤
• Mesenteric artery disease or ischemia
• 外周动脉疾病
• 肾动脉狭窄
• Takayasu指出动脉炎

风险

风险 of aortic angiography include:

• Allergic reaction to the contrast dye
• 动脉阻塞
• Blood clot that travels to the lungs
• Bruising at the site of catheter insertion
• Damage to the blood vessel where the needle and catheter are inserted
• 出血过多或 血凝块 where the catheter is inserted, which can reduce blood flow to the leg
• 心脏病发作或 中风
• Hematoma, a collection of blood at the site of the needle puncture
• 感染
• Injury to the nerves at the needle puncture site
• 染料对肾脏造成损害

注意事项

这个程序可以用 左心导管 to look for coronary artery disease.

主动脉血管造影术 has been mostly replaced by computed tomography (CT) angiography or magnetic resonance (MR) angiography.

参考文献

格兰特洛杉矶，格里芬N. 主动脉. In: 格兰特洛杉矶，格里芬N, eds. 格兰杰 & 艾利森诊断放射学 Essentials. 第二版. Philadelphia, PA: Elsevier; 2019:chap 2.4.

雾人是的. Angiography: principles, techniques and complications. In: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. 格兰杰 & 艾利森诊断放射学. 7日艾德. Philadelphia, PA: Elsevier; 2021:chap 78.