Non-Contrast Abdominal Computed Tomography for Renal, Ureteral, and Bladder Stone Assessment
This radiation-based imaging test uses targeted X-ray technology to capture high-resolution cross-sectional views of the kidneys, ureters, and bladder, with no required intravenous contrast material to reduce patient prep time and eliminate contrast-related reaction risks. It is the first-line diagnostic option for patients presenting with acute flank pain, hematuria, or suspected urinary colic, as it can detect even tiny mineral deposits and identify if stones are causing urinary tract obstruction or swelling. The entire scan takes roughly 15 minutes to complete, delivers minimal radiation exposure, and carries a very low risk of triggering claustrophobia in patients.
This low-dose non-contrast CT scan uses X-ray technology to quickly locate, measure, and characterize kidney and ureteral stones to guide personalized urological treatment decisions.
Key facts at a glance
- Modality
- ct
- Body part
- abdomen · renal
- Ionizing radiation
- true
- Radiation dose
- 8
- Duration (min)
- 15
- Pregnancy safe
- false
- Pediatric safe
- true
- Breastfeeding safe
- true
- Claustrophobia risk
- low
- Metal implant safe
- safe
- Sedation
- none
- LOINC
- 36813-4
- SNOMED
- 419394006
- Result turnaround
- 24h
- Availability
- urgent
- Setting
- any
- Cost tier
- moderate
Understanding CT Scan of kidneys
Computed Tomography provides detailed visualization of kidneys. The procedure uses controlled radiation to create precise images with excellent anatomical detail.
Clinical Indications
This diagnostic examination detects abnormalities, guides treatment decisions, and monitors known conditions.
What to Expect
The procedure typically takes 15 minutes. The examination is painless and non-invasive.
How to read the report
- Results reviewed by board-certified radiologist.
- Report transmitted to referring physician.
What Is This Procedure?
This ct scan evaluates renal, specifically kidneys. Uses controlled radiation to create detailed images.
What Does It Show?
Detailed images of kidneys and ureters and bladder. Part of the urogenital system.
Common Uses
This exam is commonly used to detect abnormalities, guide treatments, and monitor known conditions.
What to Expect
The procedure takes approximately 15 minutes.
Severe pain at procedure site
urgentWorsening severe pain with fever or other symptoms. Go to urgent care or ER.
Mild symptoms after procedure
promptMild discomfort or symptoms that don't improve. Contact your doctor.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy