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CT KUB Non-Contrast

Last Updated: 2026-01-01 Author:

  • 1. Clinical Summary

    Series Phase Coverage
    Non-Contrast KUB Non-contrast Top of kidneys to Pubic symphysis
    • Nephrolithiasis
    • Renal colic
    • Flank pain
    • Hematuria

  • 2. Patient Prep

    • Position: Supine with arms raised
    • NPO Status: None required

  • 3. IV Contrast & Injection

    No Intravenous Contrast

    This protocol does not require IV contrast administration.

  • 4. Special Notes

    • LOW DOSE protocol. Reduced mAs. Cover kidneys to pubic symphysis. Stone protocol settings
    • Additional Recons: Thin slice 1mm for small stones. Stone size measurements
    • No IV needed. No oral contrast. Explain low radiation technique

    Safety First

    • Renal Function: N/A
    • Allergy: N/A
    • Look for stones - measure size and location. Check for hydronephrosis. Assess for alternative diagnoses
    • Low dose protocol. Reduced mAs. Image quality adequate for stones
Series Name Start Location End Location Delay Slice Thickness Notes
Scout Top of kidneys Pubic symphysis N/A N/A AP scout
Non-Contrast KUB Top of kidneys Pubic symphysis N/A 1-2 mm Low dose technique
Plane Acquisition FOV Thickness/Increment Kernel IR Strength Notes
Axial Non-contrast KUB 2.5 mm/2.5 mm Standard 3 Stone detection
Axial Non-contrast KUB 2.5 mm/2.5 mm Bone N/A Bone window for stones
Coronal Non-contrast KUB 3 mm/3 mm Standard 3 Coronal stone overview
MIP Non-contrast Kidneys/ureters 5 mm slab Standard N/A Stone localization