The aqueduct echo method applied to brain stem tumours
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Updated: Jul 11, 2026
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Non-invasive Parenchymal, Vascular and Metabolic High-frequency Ultrasound and Photoacoustic Rat Deep Brain Imaging
Published on: March 2, 2015
Ultrasonics
|May 1, 1977
Abstract:
Echoencephalography of the posterior fossa was performed in nine cases of brain stem lesion. In all instances a dorsal displacement of the cerebral aqueduct was disclosed by means of the aqueduct echo method. The quantitative displacement was expressed by the A:B ratio method and found to agree well with calculations from corresponding pneumoencephalography.
