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Related Experiment Videos

Noisy intracranial tumours

B T van Dooren1, A C van Bruggen, J J Mooij

  • 1Department of Neurosurgery, University Hospital Groningen, The Netherlands.

Acta Neurochirurgica
|January 1, 1994
PubMed
Summary
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Transorbital sound recordings reveal abnormal sounds in patients with intracranial tumors and aneurysms. Tumor histology, not size, significantly impacts these abnormal sounds, aiding in pathology detection.

Area of Science:

  • Neurology
  • Medical Acoustics
  • Oncology

Background:

  • Intracranial tumors and aneurysms present diagnostic challenges.
  • Transorbital sound recordings offer a non-invasive method for intracranial assessment.

Purpose of the Study:

  • To investigate the characteristics of transorbital sound recordings in patients with intracranial tumors and aneurysms.
  • To identify factors associated with abnormal sound recordings in intracranial pathology.

Main Methods:

  • Transorbital sound recordings were collected from 21 patients with intracranial tumors (gliomas, meningiomas), 28 with intracranial aneurysms, and 20 controls.
  • Radiological evaluation assessed tumor characteristics like size, mass effect, edema, histology, and malignancy grade.

Main Results:

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  • Patients with gliomas (low and high-grade) and aneurysms exhibited significantly different sound recordings compared to controls.
  • Glioma and aneurysm sound recordings were not significantly different from each other.
  • Tumor histology and malignancy grade were significant factors associated with abnormal sounds, unlike tumor size, mass effect, or edema.

Conclusions:

  • Specific intracranial tumors generate abnormal sounds indistinguishable from those in aneurysm patients.
  • These findings are crucial for interpreting sounds in the detection of intracranial pathology, particularly for aneurysm screening.