Skip to content

CTA Pelvis Prostate Artery Embolization

Last Updated: 2026-01-01 Author:

  • 1. Clinical Summary

    Series Phase Coverage
    CTA Arterial Arterial (bolus tracked) Iliac crest to Lesser trochanters
    • Pre-procedural planning for prostate artery embolization
    • Benign prostatic hyperplasia

  • 2. Patient Prep

    • Position: Supine with arms raised
    • NPO Status: NPO 2-4 hours
    • Pre-medication:
      • Nitroglycerin 0.8 mg SL if systolic BP > 110
      • Nitroglycerin 0.4 mg SL if systolic BP > 100

  • 3. IV Contrast & Injection

    Parameter Value
    Agent Isovue 370
    Volume 1.2 mL/kg
    Flow Rate 3-4 mL/s
    Duration 18-22s
    Timing Method Bolus Tracking
    ROI Placement Common iliac artery
    Trigger (HU) 150 HU

    Use full dose if GFR > 30

    If GFR < 30

    Max Contrast = \(2*\left[\frac{\text{Patient Weight}}{75 \text{ kg}} * \text{eGFR}\right]\)

  • 4. Special Notes

    • Scan from L3 to proximal femur. Arterial phase essential. Focus on internal iliac branches and prostate supply
    • Additional Recons: 3D VR with prostate vessels highlighted. Curved MPR of internal iliac branches. Measure vessel diameters
    • 18-20G IV
    • Chcek BP for nitroglycerin administration, check for contraindications

    Safety First

    • Renal Function: Verify eGFR > 30
    • Allergy: Check allergy history
    • Identify prostate artery origins (usually anterior division of internal iliac). Map anatomy for IR. Note variants and anastomoses
    • Full bladder helpful for prostate visualization. Coordinate with IR before scan
Series Name Start Location End Location Delay Slice Thickness Notes
Scout/Topogram Iliac crest Lesser trochanters N/A N/A AP pelvis
CTA Arterial Iliac crest Lesser trochanters Bolus tracked 0.625 mm Focus on internal iliac branches
Plane Acquisition FOV Thickness/Increment Kernel IR Strength Notes
Axial Arterial Pelvis 1 mm/1 mm Vascular 3 Identify prostate artery origins
Coronal Arterial Pelvis 1.5 mm/1.5 mm Vascular 3 MIP of iliac vessels
Sagittal Arterial Pelvis 1.5 mm/1.5 mm Vascular 3 Lateral view pelvic vessels
3D VR Arterial Pelvis 0.75 mm source Vascular 3 3D roadmap for interventional radiologist