A short discussion about the CT guided aortogram in medical imaging technology. Defined and said about anatomy,patient preparation, and procedure .

1. CT-AORTOGRAM
By:
T.ANTONY GODSON
lllrd year M.sc Integrated
Radiology and imaging technology
CARE

2. CT-AORTOGRAM
• Computed tomography based Aortogram is an imaging procedure
where rotating beam of X-rays are used to scan and create an image
of the blood vessel by injecting contrast media .
• This procedure is mainly done to visualize the major blood vessel
carrying blood out of the heart called Aorta.
• These images helps to detect and diagnose various disorders of the
aorta and its branches.

3. AORTA
• The aorta is the largest artery in the body.
• It recieves the cardiac output from the left ventricle and supplies the
body with oxygenated blood via systemic circulation.
• Aorta can be divided into four sections as ascending aorta, aortic
arch, descending aorta and abdominal aorta.
• At L4 it terminates as left and right common illiac arteries.
• Main clinical indications of Aorta are Aortic aneurysm, Aortic
dissection & Aortic stenosis.

4. AORTA

5. AORTOGRAM INDICATIONS
• Breathlessness
• Aortic aneurysm
• Aortic dissection
• Suspected bleeding
• Major trauma
• Suspected aortic rupture/thrombosis.

6. CONTRAINDICATION
• Pregnant women,
• Hypersensitive to iodinated contrast media,
• CKD,
• Allergic to some medications,etc....

7. PATIENT PREPARTION
• Aortogram is a contrast related procedure so that the patient must be
prepared with overnight fasting(5-6 hours).
• Patients RFT report must be checked with BUN value and Serum
Creatinine values must be normal.
• Hence the patient will be in a critical situation we must be prepared
with emergency drugs like adrenaline etc,.....to treat with life
threatening or allergic reactions.
• And the procedure must be explained to the patients gaurdians and
get the consent form signed.

8. AORTOGRAM PROCEDURE
• For this procedure and 22g cannula is injected to the patients body to
inject the contrast.
• Now the patient is held in supine position with head first to enter the
gantry in the examination table in CT.
• And the patient is adviced about the contrast injection and about the
discomfort during injection.
• Now the length of the area to be scanned is measured and the scan is
started and planned.
• Now the contrast media is injected and visualized.

9. TECHNICAL PARAMETERS
• Kv - 120
• mAs - 250
• Scan direction - Craniocaudal
• Bolus timing - Test bolus
• Pitch - Depends upon the heart rate.

10. ABNORMALITIES FOUND
• Aortic aneurysm
• Aortic stenosis
• Aortic dissection

11. AORTIC ANEURYSM

12. AORTIC STENOSIS

13. AORTIC DISSECTION

14. AORTIC DISSECTION

15. THANK YOU !