J Korean Radiol Soc.  1995 Sep;33(3):389-394.

Ultrasound Guided Biopsy of Malignant Focal Liver Lesions: Comparison of Automated Gun Biopsy with Fine Needle Aspiration Biopsy

• Choi BI
• Han JK
• Han MC
• Cho JY

Abstract

PURPOSE
To compare the efficacy and safety of ultrasound guided automated gun biopsy with fine needle aspiration biopsy of focal liver lesions.
MATERIALS AND METHODS
We performed 32 automated gun(19.5G Autovac Biopsy Needle) biopsies and 27 fine needle aspiration(22G Westcott Style Biopsy Needle) biopsies in 48 patients with malignant focal liver lesion under the guidance of ultrasound. We compared the "positive for malignancy rate" and "pathologic diagnosis rate" of both methods with final diagnosis, and the rate of complications.
RESULTS
The "positive for maiignancy rate" of automated gun biopsy and needle aspiration are 84.4%(27/32) and 66.7%(18/27) respectively(p=0.11). The "pathologic diagnosis rate" are 84.4%(27/32) and 55.6%(15/27) with significant statistical difference(p<0.05). And there is no difference of the rates of significant complications.
CONCLUSION
When compared with the fine needle aspiration biopsy, ultrasound-guided automated gun biopsy is safe and more effective method for malignant focal liver lesion.

MeSH Terms

Biopsy*
Biopsy, Fine-Needle*
Diagnosis
Humans
Liver*
Needles
Ultrasonography*