Seldinger Technique

- Treatment of tumors
- Varicosities 
- Vascular malformations
- Aneurysms and pseudoaneurysms
- Fibroids
- Gastrointestinal bleeding
Device selection
• vascular territory to be embolized
• permanence of occlusion
• degree of occlusion-proximal or distal desired
Permanent Large-Vessel Occlusions  

Coils

Balloons

Amplatz Vascular Plug

Guide wires

Silk suture material

Porcine submucosa
Permanent Small-Vessel Occlusions  
• Particles

Liquid sclerosants

• Liquid adhesive

Ethiodol

Thrombin 

Onyx
Temporary Large-Vessel Occlusions
• Gelfoam sponge
• Autologous clot
-
Temporary Small-Vessel Occlusions  
• Gelfoam powder
• Starch microspheres
• Fibrillated collagen
General Embolization Scheme and Clinical Indications

- 
AUTOLOGUS CLOT
Advantages 
 immediate availability, absence of cost, and lack of adverse reaction. Method
aspirate roughly 20 mL of the patient's blood and allow it to clot, then discard the supernatant and reintroduce the 
clot through the catheter. If desired, the clot can be opacified by adding sterile tantalum powder. 
Drawback: Rapid lysis time, which can lead to recanalization within 6-12 hours. This problem can be partially 
overcome by modification of the autologous clot.

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