Catheter and material selection for transarterial embolization: technical considerations. I. Catheters.

Area of Science:

• Interventional Radiology
• Vascular Surgery
• Medical Device Technology

Background:

• Embolization procedures require careful selection of catheterization techniques and delivery systems.
• Understanding lesion specifics, including location and vascular supply, is crucial for successful embolization.

Purpose of the Study:

• To discuss the selection criteria for various catheterization techniques and delivery systems used in embolization.
• To correlate device selection with specific lesion characteristics, such as lesion location and feeding artery anatomy.

Main Methods:

• Review of different introducer sheaths, conventional catheters (tapered and non-tapered), and specialized catheters (double-lumen, single-lumen, flow-guided, detachable balloon).
• Analysis of device selection based on lesion characteristics (location, number and size of feeding arteries).
• Presentation of data from experimental embolizations in dogs and clinical data from 34 patients (61 procedures).

Main Results:

• The choice of catheterization technique and delivery system is influenced by lesion specifics.
• Experimental and clinical data support the presented selection criteria for embolization procedures.

Conclusions:

• Appropriate selection of catheterization techniques and delivery systems is vital for effective embolization.
• The study provides a framework for device selection based on detailed lesion assessment, supported by empirical evidence.