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J Med Imaging Radiat Oncol. 2013 Dec;57(6):652-6. doi: 10.1111/1754-9485.12054. Epub 2013 Apr 1.

CT-guided core biopsy of malignant lung lesions: how many needle passes are needed?

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  • 1Department of Radiology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

AIM:

The study aims to determine the number of needle pass in the CT-guided core needle biopsy (CNB) in making a diagnosis of pulmonary malignancy.

MATERIALS AND METHODS:

A total of 434 CNB records were retrospectively reviewed. The specimen obtained from each needle pass was put in a formalin container and then labelled for separate histopathological reporting. The patients were divided into five groups according to the total number of needle passes (n = 1, n = 2, n = 3, n = 4 and n ≥ 5). In each of the groups 2-4, it was analysed how many needle passes are required before a plateau in diagnostic yield is achieved.

RESULTS:

CNB produced 283 true-positive and 23 false-negative diagnosis of malignancy. Cumulative sensitivity significantly (P < 0.05) increased between the first and second as well as the second and the third (if done) needle passes, but not between the third and fourth ones.

CONCLUSION:

Three coaxial needle passes might be optimal in the diagnosis of lung malignancy.

© 2013 The Authors. Journal of Medical Imaging and Radiation Oncology © 2013 The Royal Australian and New Zealand College of Radiologists.

KEYWORDS:

body CT; chest imaging; intervention; non-vascular interventional radiology

PMID:
24283552
[PubMed - indexed for MEDLINE]
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