CT Renal Angiogram Scan in Ahmedabad –
Accurate & Advanced Diagnosis
Trusted diagnostic services with the latest 128-slice CT technology. Non-invasive, high-resolution angiography of renal arteries and veins for precise vascular and urological diagnosis.
Precision Renal Vascular Imaging – From Artery to Collecting System
At Usmanpura Imaging Centre, we offer state-of-the-art CT Renal Angiogram services across Ahmedabad using the latest 128-slice multi-detector CT scanner. A CT Renal Angiogram is a specialized CT examination that provides detailed, non-invasive imaging of the renal arteries, renal veins, and the entire kidney in a multiphasic protocol – delivering comprehensive vascular and parenchymal information in a single appointment.
Unlike conventional catheter-based renal angiography, a CT Renal Angiogram requires no arterial puncture and no fluoroscopic radiation. It delivers sub-millimetre 3D vessel maps of the renal arteries, detects stenosis with high sensitivity, identifies accessory renal arteries critical for surgical planning, and evaluates the renal veins and inferior vena cava – all within minutes. Our expert vascular and uroradiologists provide same-day reports tailored to your nephrologist's, urologist's, or vascular surgeon's clinical needs.
No Catheter · No Arterial Puncture
CT Renal Angiogram eliminates the risks of conventional invasive renal angiography entirely.
Complete Kidney-to-Vessel Survey
A single multiphasic acquisition covers renal arteries, parenchyma, veins, and collecting system.
Same-Day Vascular Reports
Expert reports with stenosis grading, vessel measurements, and 3D reconstructions delivered via WhatsApp same day.
CT Renal Angiogram – Non-Invasive Renal Vascular Mapping
Multiphasic 128-slice CT covering renal arteries, parenchyma, veins, and collecting system in a single breath-hold acquisition.
What is a CT Renal Angiogram?
A CT Renal Angiogram (CT Renal Angiography / CTA Renal) is a specialized multiphasic CT examination that uses intravenous iodinated contrast and precisely timed image acquisition to produce detailed, high-resolution images of the renal blood vessels – including the main renal arteries, accessory renal arteries, segmental branches, renal veins, and the inferior vena cava (IVC) – along with complete evaluation of the kidney parenchyma and collecting system.
The study uses a sophisticated bolus-tracking technique: contrast is injected intravenously, and imaging begins at the precise moment the contrast reaches the renal arteries for the arterial phase, followed by sequential acquisitions in the venous, nephrographic, and excretory phases. This multiphasic approach provides a comprehensive assessment that conventional single-phase CT cannot match.
3D volume-rendered (VR) and maximum intensity projection (MIP) reconstructions are generated from the raw data, providing vessel maps that allow the radiologist and surgeon to rotate and view the renal vasculature from any angle – essential for planning partial nephrectomy, living donor transplant evaluation, and renal artery stenting.
⚙️ How Does CT Renal Angiogram Work?
IV contrast is injected and bolus-tracking software monitors aortic enhancement in real time
Scan automatically triggers at arterial phase – capturing renal artery opacification at peak
Sequential phases (venous, nephrographic, excretory) follow at precise time intervals
Sub-mm 3D dataset is post-processed into MIP, VR, and MPR reformats for vessel analysis
Vascular radiologist measures stenosis, identifies accessory arteries, grades parenchymal perfusion
What CT Renal Angiogram Diagnoses
Our 128-slice CT Renal Angiogram with multiphasic protocol identifies the complete spectrum of renal vascular and parenchymal pathology.
Renal Artery Stenosis (RAS)
Non-invasive grading of stenosis severity in main and accessory renal arteries. Identifies atherosclerotic and fibromuscular dysplasia (FMD) as causes of secondary hypertension and ischemic nephropathy.
Renovascular Hypertension
Evaluates renal artery anatomy as the underlying cause of resistant hypertension, particularly in young patients with FMD and elderly patients with atherosclerotic RAS amenable to angioplasty or stenting.
Renal Mass Pre-Surgical Vascular Mapping
Essential pre-operative mapping before partial or radical nephrectomy for renal cell carcinoma. Identifies accessory renal arteries, early arterial branching, and venous drainage to guide the surgeon's approach and minimize complications.
Living Donor Kidney Assessment
Comprehensive evaluation of potential living kidney donors – mapping arterial supply (number, origin, size of renal arteries), venous anatomy (renal vein length, left renal vein variants), and parenchymal health before donor nephrectomy.
Renal Transplant Evaluation
Pre-transplant vascular mapping of recipient iliac vessels and donor kidney vasculature. Post-transplant CTA detects transplant renal artery stenosis, kinking, pseudoaneurysm, and arteriovenous fistula.
Renal Artery Aneurysm
Detects and characterizes main and segmental renal artery aneurysms – measuring size, location, and relationship to arterial branches – guiding decision between surveillance and endovascular or surgical repair.
Renal Vein Thrombosis (RVT)
Venous phase CTA identifies filling defects in the renal vein and IVC indicating thrombosis. Assesses extent of thrombus, IVC involvement, and guides anticoagulation or surgical management decisions.
Renal Trauma & Vascular Injury
Rapid assessment after trauma – detects renal artery occlusion, segmental infarction, active arterial haemorrhage, renal vein injury, and post-traumatic pseudoaneurysm requiring urgent embolization.
CT Renal Angiogram – What We Evaluate in Each Phase
Each acquisition phase of our multiphasic CT Renal Angiogram protocol provides specific diagnostic information.
Renal Artery Assessment
Measures main renal artery diameter and stenosis degree (%). Identifies accessory renal arteries and their origin from the aorta. Maps early segmental branching patterns critical for partial nephrectomy planning. Detects fibromuscular dysplasia (beaded appearance) vs atherosclerotic stenosis.
Aortic & Vascular Origins
Maps the aorto-ostial junction of both renal arteries, identifies atheromatous plaques at the origin, accessory polar arteries, and assesses the abdominal aorta for co-existing aneurysm or aortic wall disease affecting renal perfusion.
Renal Vein & IVC
Evaluates left renal vein for circumaortic or retroaortic variants (important before surgery). Detects renal vein thrombosis, tumour thrombus extension into the IVC (RCC staging), and nutcracker syndrome (left renal vein compression).
Renal Parenchyma
Nephrographic phase assesses renal cortex and medullary enhancement for perfusion defects (infarction, ischemia), characterizes renal masses (cysts, AML, RCC), and evaluates parenchymal thickness for chronic kidney disease assessment.
Collecting System & Ureters
Excretory phase delineates the collecting system for urothelial tumors, ureteropelvic junction (UPJ) obstruction, urothelial carcinoma, and anatomical variants. Essential for surgical planning before pyeloplasty or ureteral surgery.
Adrenal Glands
Simultaneously evaluates adrenal glands for adenoma (lipid-rich on pre-contrast), pheochromocytoma (causing secondary hypertension alongside RAS), adrenocortical carcinoma, and metastases in cancer staging workup.
Urolithiasis & Calcification
Pre-contrast phase detects renal and ureteric calculi, vascular calcification within renal arteries, and renal cortical calcification (nephrocalcinosis). Differentiates calcified AML from RCC on dedicated sequences.
3D Vessel Reconstruction
Post-processing generates volume-rendered (VR) and maximum intensity projection (MIP) 3D models of the renal vasculature. Used by surgeons and interventional radiologists for pre-procedure virtual planning of complex cases.
When Do You Need a CT Renal Angiogram?
Your nephrologist, urologist, vascular surgeon, or physician may recommend this scan for the following clinical situations.
Hypertension Workup
- Onset of hypertension before age 30
- Resistant hypertension on 3+ medications
- Hypertension with abdominal bruit on examination
- Sudden worsening of previously controlled BP
- Hypertension with unexplained renal impairment
Kidney Surgery Planning
- Renal cell carcinoma – pre-partial nephrectomy
- Laparoscopic nephrectomy vascular mapping
- Complex renal stone – percutaneous nephrolithotomy planning
- Pyeloplasty for UPJ obstruction
- Retroperitoneal surgery – renal vessel mapping
Transplant & Donor
- Living kidney donor pre-operative workup
- Transplant recipient iliac vessel assessment
- Post-transplant hypertension / graft dysfunction
- Suspected transplant renal artery stenosis
- Transplant complication – fistula or pseudoaneurysm
Trauma & Emergency
- Blunt or penetrating renal trauma
- Flank haematoma with haematuria after injury
- Suspected renal artery occlusion (sudden flank pain, no urine)
- Post-endovascular procedure complication
- Spontaneous retroperitoneal haemorrhage
Vascular Anomalies
- Known or suspected renal artery aneurysm follow-up
- Fibromuscular dysplasia (FMD) assessment
- Nutcracker syndrome (left flank pain, haematuria)
- Arteriovenous fistula post-biopsy or trauma
- Pre-embolization mapping for AML or haemorrhage
Renal Vein & IVC
- Renal vein thrombosis (flank pain, nephrotic syndrome)
- RCC staging – IVC tumour thrombus extent
- Nutcracker syndrome evaluation
- Pre-Wilms tumor surgery venous mapping
- Budd-Chiari with renal involvement
Why Choose Usmanpura Imaging Centre?
Clinical excellence, advanced vascular CT technology, and patient-first care across 8 branches in Ahmedabad.
128-Slice CT Technology
Sub-mm slice thickness with bolus-tracking and multiphasic acquisition for precise renal artery stenosis grading and 3D vessel mapping.
Expert Vascular Radiologists
Subspecialty vascular and uroradiologists with 15+ years of renal CT angiography reporting experience for complex cases.
Affordable Pricing
Transparent, competitive pricing for CT Renal Angiogram. No hidden charges. Transplant package rates available.
15+ Branches Citywide
Conveniently located across Ahmedabad – Usmanpura, Vadaj, Satellite, Naroda, Sabarmati, Juhapura, Bapunagar, Maninangar, Gandhinagar.
Same-Day Reports
Comprehensive vascular radiology reports with stenosis measurements and 3D vessel maps delivered via WhatsApp and email same day.
NABH Accredited
Quality-assured diagnostic processes meeting national accreditation standards for consistently reliable CT vascular imaging.
Benefits of CT Renal Angiogram
Understand why CT Renal Angiogram is the gold-standard investigation for renal vascular and pre-surgical assessment.
No Catheter · No Arterial Puncture
Completely eliminates the risk of catheter-related complications – no groin access, no arterial injury, no embolic stroke risk associated with conventional renal angiography.
Detects Accessory Renal Arteries
Identifies accessory and polar renal arteries with near 100% sensitivity – critical before donor nephrectomy, partial nephrectomy, and renal artery stenting where these vessels must not be sacrificed.
True 3D Vessel Maps
Volume-rendered 3D reconstructions allow surgeons to pre-operatively rehearse the dissection and identify early branching patterns – reducing intraoperative complications.
Complete Assessment in One Visit
Multiphasic protocol provides arterial, venous, parenchymal, and collecting system data in a single 15–20 minute examination, avoiding multiple separate investigations.
Stenosis Grading & Measurement
Provides percentage stenosis, minimum lumen diameter, and post-stenotic dilation measurements directly determining angioplasty/stenting thresholds and eligibility.
Same-Day Results for Urgent Cases
Rapid turnaround reports for acute renal trauma, transplant complications, and renovascular emergencies enabling immediate clinical action.
How to Prepare for CT Renal Angiogram
Follow these important guidelines carefully to ensure a safe and diagnostically optimal CT Renal Angiogram.
✅ Do's
- ✓Fast for 4–6 hours before the scan to minimize nausea from contrast injection and for optimal aortic opacification timing
- ✓Stay well hydrated – drink 2–3 glasses of water before the fast begins and after the scan to protect kidney function
- ✓Bring your nephrologist's / urologist's / vascular surgeon's referral and your most recent blood creatinine / eGFR result
- ✓Inform our staff of any known contrast allergy, kidney disease, diabetes, or heart failure before the scan
- ✓Arrive 15 minutes early for registration, renal function review, and IV cannula placement
- ✓Continue all blood pressure, anticoagulant, and diuretic medications unless specifically advised otherwise
- ✓Wear loose, comfortable clothing without metallic buttons or zippers near the abdomen or arms
- ✓Inform our team if you are a living donor candidate or renal transplant recipient so we can apply the appropriate protocol
❌ Don'ts
- ✕Do not take Metformin on the day of and 48 hours after the CT Renal Angiogram – withhold to prevent lactic acidosis; consult your doctor
- ✕Do not withhold your current serum creatinine result – contrast is used cautiously or avoided when eGFR is below 30 ml/min/1.73m²
- ✕Do not eat solid food for 4–6 hours before the scan to reduce nausea and ensure optimal bolus timing
- ✕Do not take NSAIDs (ibuprofen, naproxen) on the day of the scan – they can worsen contrast-related renal effects
- ✕Do not stop antihypertensive medications on the day of the scan – maintaining stable blood pressure improves image quality
- ✕Do not move during the scan – even small breathing movements create arterial blurring on high-resolution vascular acquisitions
- ✕Do not withhold information about prior contrast allergy, myeloma, or thyroid disease – all affect contrast management protocols
CT Renal Angiogram Procedure
From arrival to same-day report – a complete, reassuring guide to every step of your CT Renal Angiogram.
Registration & Clinical Indication Review
Our team registers your details and carefully reviews your referral. The specific clinical indication – renal artery stenosis workup, pre-surgical mapping, donor assessment, transplant evaluation, or trauma – determines the exact multiphasic protocol to be applied. For transplant donor cases, a dedicated protocol covering both kidneys, adrenals, and iliac vessels is used.
Renal Function Assessment
Your recent serum creatinine and calculated eGFR are reviewed before contrast administration. For eGFR above 60 ml/min/1.73m², standard contrast dosing is used. For eGFR 30–60, reduced contrast volume with IV hydration pre-scan is recommended. For eGFR below 30, our radiologist and your referring nephrologist collaboratively weigh the risk-benefit of contrast administration versus using MRI Renal Angiography (CE-MRA) as an alternative.
Changing & IV Cannula Placement
You change into a hospital gown if required. A large-bore IV cannula (18–20G) is placed in your antecubital vein – a larger bore is needed to deliver contrast at the high flow rate (4–5 ml/sec) required for optimal arterial phase opacification. The contrast injector is connected and test injected to confirm correct vein placement before the full dose.
Positioning & Breath-Hold Training
You lie comfortably on your back on the padded CT table with arms raised above your head (to reduce beam-hardening artefact from the arms). Our technician trains you to perform a single breath-hold of 10–15 seconds during the arterial phase – crucial for sharp, artefact-free vessel images. Practice breath-holds are performed before the actual scan.
Multiphasic CT Renal Angiogram
Pre-contrast images are acquired first. Contrast is then injected and a bolus-tracking program monitors aortic enhancement – automatically triggering the arterial phase scan at peak opacification. You hold your breath during the arterial phase. Venous (~60s), nephrographic (~100s), and excretory phase (~5–10 min) acquisitions follow. Total scan table time is typically 15–20 minutes. Immediately after, post-processing generates MIP and 3D VR vessel maps for the radiologist.
Post-Scan Care & Report Delivery
After the scan, the IV cannula is removed and you can resume normal activities immediately. Drink extra water (2–3 litres over the next few hours) to help flush contrast from your kidneys. A subspecialty vascular radiologist reviews all phases, measures renal artery stenosis at each segment, identifies accessory vessels, grades venous or parenchymal findings, and prepares a comprehensive written report with vessel measurements and 3D reconstruction images. Your report is delivered the same day via WhatsApp and email. Printed reports at all 8 Ahmedabad branches.
Frequently Asked Questions
Everything you need to know about CT Renal Angiogram at Usmanpura Imaging Centre, Ahmedabad.
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128-Slice CT · Multiphasic Protocol · 3D Vessel Maps · Expert Vascular Radiologists · Same-Day Reports · 15+ Branches Across Ahmedabad
What Our Patients Say
Trusted by patients, nephrologists, urologists, and vascular surgeons across Ahmedabad and Gujarat.
"CT Renal Angiogram at Usmanpura for my resistant hypertension revealed 75% right renal artery stenosis due to fibromuscular dysplasia. The percentage stenosis was clearly stated in the report and my nephrologist used it directly to plan angioplasty. Life-changing scan."
"Pre-operative CT Renal Angiogram for partial nephrectomy for a 3cm RCC. The report identified an early branching accessory artery supplying the lower pole – exactly where my surgeon needed to know. The 3D reconstructions were included and my surgeon used them in the OR planning."
"Living kidney donor evaluation – the report at Usmanpura showed bilateral single renal arteries, normal left renal vein without circumaortic variant, and healthy parenchyma bilaterally. My transplant surgeon said the report was perfectly formatted for surgical planning. Excellent."
"Post-transplant CT Renal Angiogram for graft hypertension. Report showed 65% transplant renal artery stenosis at the anastomosis site. Same-day report reached my transplant nephrologist within 3 hours and angioplasty was planned immediately. Fast, accurate, life-saving."
"As a transplant surgeon, I exclusively use Usmanpura for donor CT Renal Angiograms. The multiphasic protocol quality is consistently excellent – arterial phase timing is perfect, 3D VR images are surgical-quality, and accessory artery detection is near 100% in my experience."
"CT Renal Angiogram for nutcracker syndrome – haematuria with left flank pain. The venous phase clearly showed left renal vein compression between aorta and SMA with a 4:1 pressure gradient estimated from vein calibre. My vascular surgeon was very impressed with the report detail."
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