Abstract: An acoustic aneurysm detector is disclosed which is comprised of hydrophone sensors in contact with a patient for receiving sound emanating from the patient and converting the sound into responsive or related electrical signals, an electronic unit for converting the responsive electrical signals into processed electrical signals and a computer having software which is operatively associated with the electronic unit for receiving the processed electrical signals and for providing an indication of the frequency of the sound over a specified time range. An associated method is also disclosed.

Abstract: Intracranial aneurysms generate aneurysm-characteristic sounds which emanate externally from the head, are monitored, and are then analyzed to produce information indicative of the probable existence of the aneurysm. The method is non-invasive, does not require hospitalization, and is repeatedly used to diagnose probable aneurysm presence and the onset and continuation of spasm. Information from repeated samplings aids in following and diagnosing patient status pre-bleed, during bleed, post-bleed and pre- and post-operative.