Percutaneous imaging-guided solid organ core needle biopsy: coaxial versus noncoaxial method

Area of Science:

• Radiology
• Interventional Radiology
• Oncology

Background:

• Percutaneous imaging-guided biopsies are crucial for diagnosing hepatic and renal diseases.
• Evaluating different techniques is essential for optimizing patient safety and diagnostic accuracy.

Purpose of the Study:

• To compare the diagnostic yield and complication rates of coaxial versus noncoaxial techniques in percutaneous renal and hepatic core biopsies.
• To assess the impact of absorbable gelatin sponge on bleeding complications in coaxial biopsies.

Main Methods:

• Retrospective review of 1,060 patients undergoing percutaneous imaging-guided hepatic or renal core biopsies.
• Comparison of complication rates between coaxial (n=764) and noncoaxial (n=296) needle techniques.
• Evaluation of coaxial biopsies with (n=269) and without (n=495) absorbable gelatin sponge injection.

Main Results:

• Minor complication rates were 2.6% (coaxial) and 3.4% (noncoaxial).
• Major complication rates were 0.9% (coaxial) and 1.0% (noncoaxial).
• No statistically significant difference in complication rates was observed between techniques or with gelatin sponge use.

Conclusions:

• Coaxial and noncoaxial biopsy techniques demonstrate comparable safety profiles for renal and hepatic procedures.
• The use of absorbable gelatin sponge does not significantly alter complication rates in coaxial biopsies.