An acoustic aneurysm-detector.
Intracranial aneurysms have a high prevalence in the adult population; and if they rupture, significant morbidity almost always ensues. However, pulsatile blood flow through aneurysms produces vibrational sound patterns that may be detected extracranially. Thus, an acoustic aneurysm-detector has been developed to detect the sounds produced by intracranial aneurysms prior to rupture. The design is based on the utilization of a hydrophone for signal detection and computational signal processing for signal extraction. Data are examined in the time domain, the frequency domain, and the time-frequency plane. Examples are presented from an animal model and from a patient with a known aneurysm.
Sclabassi
R J
RJ
Department of Neurological Surgery, University of Pittsburgh, PA 15260.
Sun
M
M
Sekhar
L
L
Wasserman
J F
JF
Blue
H B
HB
D000328:Adult; D000465:Algorithms; D000818:Animals; D001314:Auscultation / Q000295:instrumentation*; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation; D004285:Dogs; D004582:Electronics, Medical / Q000295:instrumentation; D004867:Equipment Design; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D012815:Signal Processing, Computer-Assisted; D014159:Transducers