Comparison of artifact from craniomaxillofacial internal fixation devices: magnetic resonance imaging.

Abstract:

:This study compares artifact from craniomaxillofacial internal fixation devices in magnetic resonance images and examines heating and magnetic deflection effects on these devices. Stainless steel wires, microfixation plates of vitallium and titanium, and minifixation and mandibular reconstruction plates of stainless steel, vitallium, and titanium were evaluated. The plates were mounted on a dry skull and submerged in dilute copper sulfate solution. All images were obtained in duplicate by two independent, nonblinded teams of observers with a 1.5-T Signa magnetic resonance system. Each team ranked artifact size for each material by computerized measurement. The rank order of artifact size for each material within each fixation system group and between fixation groups was identical between the two teams. Bath and plate temperatures were recorded before and after imaging. Artifact production was related to hardware size and composition. Titanium hardware caused the least amount of "black-hole" artifact. Vitallium and stainless steel fixation devices of similar size produced significantly more artifact. No significant heating or magnetic deflection effects were seen with any of the fixation devices.

journal_name

Plast Reconstr Surg

authors

Fiala TG,Paige KT,Davis TL,Campbell TA,Rosen BR,Yaremchuk MJ

doi

10.1097/00006534-199404000-00011

subject

Has Abstract

pub_date

1994-04-01 00:00:00

pages

725-31

issue

4

eissn

0032-1052

issn

1529-4242

journal_volume

93

pub_type

杂志文章
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