{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,9]],"date-time":"2025-06-09T22:25:54Z","timestamp":1749507954495},"reference-count":17,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1984,3]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 Using an electronic stethoscope, the authors have attempted noninvasive detection of intracranial aneurysms, arteriovenous malformations (AVM's), and carotid cavernous fistulas in 45 patients. A microphone of older design and a newly designed horn-coupled probe microphone were used to record the sound signals emanating from the cranium. A trigger pulse recorded by another microphone placed over the carotid area or the precordium was used to time the intracranial signals. The sound signals were converted to electrical signals, amplified, filtered, and analyzed using fast Fourier transformation to give plots of amplitude versus frequency of the signals. A spike at a certain frequency or a bruit over a band of frequencies was considered a positive finding. The records of 18 of the patients were not satisfactory for analysis, mainly due to external noise interference. Eight of 11 aneurysm patients with satisfactory recordings emitted resonant spikes, turbulent bruits, or combinations of the two. The other three records were negative. Four patients with AVM's and two with carotid cavernous fistulas exhibited broad-band bruits representing turbulent flow. Neither spikes nor bruits were demonstrable in three patients with brain tumors or in seven patients without intracranial vascular lesions. Experimental vein pouch aneurysms were also induced in two dogs. Recordings from these animals revealed resonant spikes. The limitations and scope of electronic stethoscope audiometry are discussed.<\/jats:p>","DOI":"10.3171\/jns.1984.60.3.0553","type":"journal-article","created":{"date-parts":[[2009,5,8]],"date-time":"2009-05-08T16:22:49Z","timestamp":1241799769000},"page":"553-559","source":"Crossref","is-referenced-by-count":26,"title":["Noninvasive detection of intracranial vascular lesions using an electronic stethoscope"],"prefix":"10.3171","volume":"60","author":[{"given":"Laligam N.","family":"Sekhar","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jack F.","family":"Wasserman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"769","DOI":"10.3171\/jns.1982.57.6.0769","article-title":"Noninvasive transcranial Doppler ultrasound recording of flow velocity in basal cerebral arteries.","volume":"57","author":"Aaslid","year":"1982"},{"key":"b2","series-title":"Medicine","doi-asserted-by":"publisher","first-page":"227","DOI":"10.1097\/00005792-196209000-00002","article-title":"Origin and significance of vascular murmurs of the head and neck.","volume":"41","author":"Allen","year":"1962"},{"key":"b3","series-title":"N Engl J Med","doi-asserted-by":"publisher","first-page":"459","DOI":"10.1056\/NEJM195609062551003","article-title":"Eyeball bruits.","volume":"255","author":"Cohen","year":"1956"},{"key":"b4","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"666","DOI":"10.3171\/jns.1972.37.6.0666","article-title":"Physical factors in the initiation, growth, and rupture of human intracranial saccular aneurysms.","volume":"37","author":"Ferguson","year":"1972"},{"key":"b5","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"485","DOI":"10.3171\/jns.1970.33.5.0485","article-title":"Turbulence in human intracranial saccular aneurysms.","volume":"33","author":"Ferguson","year":"1970"},{"key":"b6","series-title":"Am J Med Sci","first-page":"277","article-title":"Observations on cerebral auscultation.","volume":"22","author":"Fisher","year":"1838"},{"key":"b7","series-title":"Circ Res","doi-asserted-by":"publisher","first-page":"463","DOI":"10.1161\/01.RES.3.5.463","article-title":"Intra-aneurysmal hemodynamics-jet action.","volume":"3","author":"German","year":"1955"},{"key":"b8","series-title":"Trans Am Neurol Assoc","first-page":"163","article-title":"Intra-aneurysmal hemodynamics: turbulence.","volume":"79","author":"German","year":"1954"},{"key":"b9","series-title":"Stroke","doi-asserted-by":"publisher","first-page":"37","DOI":"10.1161\/01.STR.14.1.37","article-title":"Sonic detection of intracranial aneurysm and AVM.","volume":"14","author":"Kosugi","year":"1983"},{"key":"b10","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"219","DOI":"10.3171\/jns.1966.25.2.0219","article-title":"Report on the Cooperative Study of Intracranial Aneurysms and Subarachnoid Hemorrhage. Section V, Part I. Natural history of subarachoid hemorrhage, intracranial aneurysms and arteriovenous malformations. Based on 6368 cases in the Cooperative Study.","volume":"25","author":"Locksley","year":"1966"},{"key":"b11","series-title":"Am J Surg","first-page":"527","article-title":"Cephalic bruit. A review of the literature and a report of six cases.","volume":"55","author":"Mackby","year":"1942"},{"key":"b12","series-title":"Brain","doi-asserted-by":"publisher","first-page":"350","DOI":"10.1093\/brain\/78.3.350","article-title":"The intracranial bruit.","volume":"78","author":"Mackenzie","year":"1955"},{"key":"b13","series-title":"Surg Neurol","first-page":"298","article-title":"Electronic stethoscope for detection of cerebral aneurysm, vasospasm and arterial disease.","volume":"8","author":"Olinger","year":"1977"},{"key":"b14","series-title":"Trans Am Neurol Assoc","first-page":"151","article-title":"Cranial bruit with intracranial saccular aneurysms.","volume":"76","author":"Richardson","year":"1951"},{"key":"b15","series-title":"Lett Appl Eng Sci","first-page":"85","article-title":"Vibrational behaviour of arterial aneurysms.","volume":"1","author":"Simkins","year":"1973"},{"key":"b16","series-title":"Vasc Surg","first-page":"153","article-title":"Vibrations recorded from the adventitial surface of experimental aneurysms and arteriovenous fistulas.","volume":"8","author":"Simkins","year":"1974"},{"key":"b17","series-title":"Thesis","article-title":"The acoustical detection of cerebral aneurysms.","author":"Wasserman","year":"1975"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/60\/3\/article-p553.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/60\/3\/article-p553.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/60\/3\/article-p553.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,7,24]],"date-time":"2022-07-24T19:43:38Z","timestamp":1658691818000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/60\/3\/article-p553.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1984,3]]},"references-count":17,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.3171\/jns.1984.60.3.0553","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[1984,3]]}}}