Abstract
The purpose of this study was to define a standardized multiplanar approach for transcranial
ultrasound (US) imaging of brain parenchyma based on matched data from 3-D US and
3-D magnetic resonance imaging (MRI). The potential and limitations of multiple insonation
planes in transverse and coronal orientation were evaluated for the visualization
of intracranial landmarks in 60 healthy individuals (18 to 83 years old, mean 41.4
years) with sufficient temporal bone windows. Landmarks regularly visualized even
in moderate sonographic conditions with identification rates of > 75% were mesencephalon,
pons, third ventricle, lateral ventricles, falx, thalamus, basal ganglia, pineal gland
and temporal lobe. Identification of medulla oblongata, fourth ventricle, cerebellar
structures, hippocampus, insula, frontal, parietal and occipital lobes was more difficult
(< 75%). We hypothesize that multiplanar transcranial US images, with standardized
specification of tilt angles and orientation, not only allow comparison with other
neuroimaging modalities, but may also provide a more objective framework for US monitoring
of cerebral disease than freehand scanning.
Key words
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Article info
Publication history
Accepted:
December 2,
2004
Received in revised form:
November 24,
2004
Received:
August 5,
2004
Identification
Copyright
© 2005 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.
