In which case is digital erasure of the aortic arch and thoracic aorta indicated?

The article was professionally consulted with a Radiologist, Department of Diagnostic Imaging - Vinmec Central Park International General Hospital.

Aortic arch and thoracic aorta is an imaging technique that uses iodine contrast to visualize the aortic arch with large arteries such as the brachiocephalic artery, the left carotid artery, left subclavian artery and thoracic aorta.
In what cases is the digital scan of the aortic arch and thoracic aorta indicated? The article will help readers answer the question.

The aorta is the largest artery in the body. They have the function of carrying blood from the heart to the organs in the body. Basically, the aorta can be divided into 5 segments, including: the aortic root, the ascending thoracic aorta, the aortic arch, the descending thoracic aorta, and the abdominal aorta.

The doctor will order a digital scan to erase the background of the aortic arch and thoracic aorta when:
The patient has diseases such as: narrowing of the arteries, aneurysms, arteriovenous catheters, angiomas, underdevelopment of the vessels. ... Patients with cerebral ischemia, the doctor suspects that they need to check for aortic stenosis or abnormality. , the doctor suspects a vascular lesion or evaluates the arterial supply to the tumor. An angiogram is required for interventional radiology. Digital erasure of the aortic arch and thoracic aorta has no absolute contraindications, however, in subjects with coagulopathy, renal failure, and a history of obvious allergy to i-contrasts. However, pregnant women, doctors still have to carefully consider and evaluate the patient's health situation before using this technique.

Aortic angiography The patient is supine on the imaging table, intravenous line is placed (usually 0.9 % isotonic saline serum), local anesthetic is performed, if the child is under 5 years old, it will be used. Anesthesia method to cooperate with the doctor during the procedure Using the Seldinger technique, the catheter entrance can be: from the femoral artery, axillary artery, brachial artery and radial artery. Usually most will choose the catheter entry from the femoral artery Sterilize and anesthetize the puncture site Needle puncture and catheterization For arching of the aorta Pass the lower arterial cannula with a guide wire through the inlet Enter the lumen of the aorta to the abdominal aorta, the thoracic aorta, bring the tip of the catheter through the aortic arch to the aortic valve sinus (do not press the tip of the catheter against the wall, but leave it 2cm from the valve) Inject 30-40ml of medicine Iodine contrast to the circuit by pump with high pressure 15-20ml/s (800 PSI) avoids motion picture noise from heartbeat Recording and taking movies: serial capture with digital erasable X-ray machine background, focusing on the arch of the aorta and the major vessels that originate there (brachiocephalic artery, left carotid artery, subclavian artery). To clearly show the arch of the aorta and its branching vessels, angiography is usually performed at an anterior left angle. Thoracic aortic angiography Perform the same technique as above, but the tip of the catheter is pulled back and when recording focuses on the thoracic aorta: it can be taken with the left anterior or straight image.
After satisfactory scanning, withdraw the catheter and tube into the lumen and apply manual pressure directly on the needle puncture site for about 15 minutes to stop bleeding, then apply pressure for 6 hours using the lumen closure kit.
Above is the basic information about digital imaging technique to erase the background of the aortic arch and thoracic aorta and the procedure. Hope this article has helped readers better visualize this method.

Digital erasure of the aortic arch and thoracic aorta is an imaging technique that requires a high level of experience by the doctor and the perfect coordination of the patient. In order to achieve high diagnostic efficiency, patients need to choose reputable addresses that have digital scanning machines to erase the background and have modern and standard medical equipment from which to have timely treatment.
Vinmec International General Hospital is a hospital with a full convergence of general and specialized doctors to perform, examine, operate, diagnose and treat diseases. In particular, at Vinmec, digital imaging techniques are performed to remove the background to diagnose images, thereby offering treatment plans for many different diseases and providing optimal treatment results for customers.