An in-vitro study to understand successful free-hand ultrasound guided intervention.

Abstract:

AIMS:To describe the optimum conditions for successful free-hand ultrasound guided intervention using an in-vitro experiment. MATERIALS AND METHODS:Optimal free-hand biopsy conditions were determined using targets buried in a purpose-built interventional phantom. The needle/probe distance and probe/phantom surface angle were changed whilst recording the needle track lengths and needle conspicuity. RESULTS:Optimal free-hand conditions included a needle/probe distance of 2-3 cm in combination with a needle/probe angle 55-60 degrees. This enabled excellent needle conspicuity with short needle track length and early needle tip visualization. CONCLUSION:Understanding how to optimize the free-hand conditions will help the interventionalist to obtain greater performance using a variety of puncture devices. This concept is likely to be particularly important to the novice interventionalist as well as to those teaching the free-hand technique.

journal_name

Clin Radiol

journal_title

Clinical radiology

authors

Bradley MJ

doi

10.1053/crad.2000.0579

subject

Has Abstract

pub_date

2001-06-01 00:00:00

pages

495-8

issue

6

eissn

0009-9260

issn

1365-229X

pii

S0009-9260(00)90579-8

journal_volume

56

pub_type

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