CT PERIPHERAL ANGIO
Also Known As
Lab Test
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About The Test
- Purpose: Visualise arteries in the arms and legs to locate blockages, clots, or narrowing.
- Technology: 128-slice CT with ultra-low-dose radiation.
- Time: 15–30 minutes total appointment.
- Result Turnaround: Digital reports delivered within 3 hours.
2. What is CT Angiography Test?
CT Peripheral Angio combines X-rays and computer processing to create cross-sectional images of blood vessels. After a small IV injection of iodine-based contrast dye, the CT scanner rotates around the limb, capturing hundreds of slices. These are reconstructed into detailed 3-D images that reveal:
- Plaque build-up
- Blood clots
- Aneurysms
- Vascular malformations
3. When and Who Needs to Take a CT Angiography Test?
Your doctor may order the scan if you have:
- Claudication (cramping leg pain while walking)
- Non-healing ulcers on feet or toes
- Cold or discoloured extremities
- Diabetes with suspected peripheral artery disease (PAD)
- Pre-surgical planning before bypass or angioplasty
List of Parameters
| Risk | How We Minimise It at Cadabams Diagnostics |
|---|---|
| Radiation | Ultra-low-dose protocols; < 1 mSv in most cases |
| Contrast allergy | Comprehensive allergy check, pre-medication available |
| Kidney stress | eGFR blood test required if > 60 years or diabetic |
| Limitation | Very dense calcium may over-estimate narrowing; we correlate with Doppler when needed |
5. Types of CT Angiography Test
- CT Aortogram with Run-off: From abdomen to toes in one sweep
- Upper Limb CT Angio: Focus on arms and hands
- Lower Limb CT Angio: Focus on legs and feet
- Bilateral vs Unilateral: Depending on symptoms
Why This Test
- Confirm peripheral artery disease (PAD)
- Rule out deep vein thrombosis (DVT)
- Evaluate traumatic vascular injuries
- Monitor bypass graft patency
- Detect vasculitis (e.g., Buerger’s disease)
When to Take Test
Benefits
Benefits of Taking the Test
- Non-invasive: No catheter insertion into arteries
- Fast: Clear 3-D images in minutes
- Accurate: Detects even 30 % narrowing
- Guidance: Helps plan stent, balloon, or bypass
- Peace of mind: Know the exact location and severity of disease
Illnesses Diagnosed with CT Peripheral Angiography
- Atherosclerosis
- Peripheral artery disease (PAD)
- Embolism
- Arteriovenous malformations (AVM)
- Popliteal artery entrapment syndrome
- Diabetic foot vasculopathy
Preparing for test
- Fasting: 4 hours before scan (sips of water allowed)
- Clothing: Wear loose attire; we provide a gown
- Jewellery: Remove all metal below the chest
- Diabetes: Hold metformin on scan day; bring recent creatinine report
11. Pre-requisites
- Referral note from your doctor
- Creatinine/eGFR (within 4 weeks if > 60 y or at risk)
- Previous imaging CDs for comparison, if any
12. Best Time to Take the CT Angiography Test
- Morning slots preferred to maintain 4-hour fast
- Emergency cases: 24/7 availability at Cadabams Diagnostics
- Follow-up: 3–6 months post-intervention or as advised
13. Eligibility
Eligible
- Adults 18 y and above
- Stable vitals
- eGFR ≥ 45 mL/min/1.73 m²
May need alternative imaging
- Pregnancy
- Severe iodine allergy
- eGFR < 30 (consider CO₂ angiography)
14. Procedure for Taking a CT Angiography Test
- Check-in: Front desk verifies ID and consent.
- IV line: 20-gauge cannula in the antecubital vein.
- Positioning: Lie supine, arms above head for lower-limb scan.
- Contrast injection: 80–100 mL at 4–5 mL/s; warm sensation is normal.
- Scan: 5–10 seconds of breath-hold while table moves.
- Observation: 15-minute post-scan monitoring for any delayed reaction.
- Home: Resume normal diet and medications.
15. Caution Before Taking the Test
- Pregnancy test if female and < 50 y
- Asthma or prior contrast reaction—notify technician
- Kidney concerns—carry latest serum creatinine report
- Pacemaker/implants—inform staff; most are CT-compatible
Test Results
Results and Interpretations
| Finding / Observation | Description | General Interpretation / Significance |
|---|---|---|
| Normal scan | No abnormalities detected in the peripheral arteries. | Indicates healthy status of the blood vessels. |
| Atherosclerosis | Plaque build-up identified in the arteries. | Suggests peripheral artery disease (PAD); may require medical intervention. |
| Blood Clot | Presence of a blood clot in a peripheral artery. | Indicates a potential blockage; further evaluation or treatment may be necessary. |
| Aneurysm | Abnormal dilation of an artery. | Requires monitoring and possibly surgical intervention to prevent rupture. |
| Vascular Malformations | Abnormal formation or connection of blood vessels. | May need further diagnostic tests or treatment to manage symptoms or prevent complications. |
Risks & Limitations
| Risk | How We Minimise It at Cadabams Diagnostics |
|---|---|
| Radiation | Ultra-low-dose protocols; < 1 mSv in most cases |
| Contrast allergy | Comprehensive allergy check, pre-medication available |
| Kidney stress | eGFR blood test required if > 60 years or diabetic |
| Limitation | Very dense calcium may over-estimate narrowing; we correlate with Doppler when needed |
FAQs
How long does the scan take?
15 minutes from check-in to exit.
Is CT Peripheral Angio painful?
No. The only discomfort is a small IV prick and a warm flush.
How soon can I drive?
Immediately if you feel well.
Is the contrast dye safe?
Yes, for the vast majority of people, the contrast dye is very safe. We take every precaution by pre-screening all patients for kidney problems and allergies to minimize any potential risk. Drinking plenty of water after your test helps your body flush the dye out quickly and efficiently.
What is the ct peripheral angiography cost?
The cost of a CT Peripheral Angiography can vary depending on several factors. For the most accurate and personalized quote based on your doctor's orders and your insurance plan, please contact our billing department directly or visit our pricing information page.