{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,23]],"date-time":"2026-01-23T07:51:37Z","timestamp":1769154697188,"version":"3.49.0"},"reference-count":14,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2001,9]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 The assessment of the actual measurement accuracy of an intracranial pressure (ICP) transducer is imperative but still very difficult in practice. The authors tested the Codman MicroSensor ICP transducer experimentally. Additionally, a bedside test for assessment of measurement accuracy was used before and after clinical monitoring. For laboratory testing, seven new transducers were examined for measurement accuracy at increasing pressures ranging from 0 to 75 mm Hg. Drift was evaluated for 10 days at six different pressure levels ranging from 0 to 50 mm Hg. Temperature drift was assessed over a temperature range from 20 to 45\u00b0C. The percentage absolute difference was used in the assessment of measurement accuracy. For clinical testing, measurement accuracy was assessed intraoperatively just before the insertion of the transducer and in an open water bath after its explantation, at 10 cm H<jats:sub>2<\/jats:sub>O both times.<\/jats:p>\n<jats:p content-type=\"fine-print\">The maximum percentage absolute difference was 9% at a pressure of 10 mm Hg, and declined toward 2.3% at a pressure of 75 mm Hg. The maximum drift over 10 days was \u22124 mm Hg. Within the range of 30 to 40\u00b0C, temperature drift was negligible. Over a period of 2 years, between June 1997 and June 1999, 40 ICP transducers were implanted in 35 patients by one surgeon. Of these devices, a malfunction was detected in two of them by testing them in a water bath before insertion. Experimental and clinical results indicate that this miniature strain-gauge transducer measures accurately; however, control readings for the probe by means of measurement in an open water bath just before insertion are strongly recommended.<\/jats:p>","DOI":"10.3171\/jns.2001.95.3.0529","type":"journal-article","created":{"date-parts":[[2009,5,13]],"date-time":"2009-05-13T17:34:25Z","timestamp":1242236065000},"page":"529-532","source":"Crossref","is-referenced-by-count":9,"title":["Methods of experimental and clinical assessment of the relative measurement accuracy of an intracranial pressure transducer"],"prefix":"10.3171","volume":"95","author":[{"given":"Matthias Hubert","family":"Morgalla","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L\u00e0szlo","family":"Krasznai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Klaus","family":"Dietz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Holger","family":"Mettenleiter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martin","family":"Deininger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ernst Heinrich","family":"Grote","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Neurosurgery","first-page":"412","article-title":"A clinical evaluation of the Camino subdural screw and ventricular monitoring kits.","volume":"26","author":"Chambers","year":"1990"},{"key":"b2","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"219","DOI":"10.1097\/00006123-199601000-00053","article-title":"Laboratory testing of three intracranial pressure microtransducers: technical report.","volume":"38","author":"Czosnyka","year":"1996"},{"key":"b3","series-title":"Acta Neurochir Suppl","first-page":"44","article-title":"Clinical evaluation of the Codman microsensor intracranial pressure monitoring system.","volume":"71","author":"Fernandes","year":"1998"},{"key":"b4","series-title":"J Neurosci Methods","doi-asserted-by":"publisher","first-page":"11","DOI":"10.1016\/0165-0270(93)90104-Y","article-title":"Evaluation of a MicroSensor intracranial pressure transducer.","volume":"49","author":"Gopinath","year":"1993"},{"key":"b5","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"1137","DOI":"10.1227\/00006123-199506000-00011","article-title":"Clinical evaluation of a miniature strain-gauge transducer for monitoring intracranial pressure.","volume":"36","author":"Gopinath","year":"1995"},{"key":"b6","series-title":"Neurosurgery","first-page":"927","article-title":"A clinical study of parenchymal subdural miniature strain-gauge transducers for monitoring of intracranial pressure.","volume":"39","author":"Gray","year":"1996"},{"key":"b7","series-title":"Acta Chir Austriaca","first-page":"167","article-title":"Das intrakranielle traumatische Aneurysma: Eine seltene, aber gef\u00e4hrliche Komplikation beim schweren Sch\u00e4del-Hirn-Trauma.","volume":"31","author":"Krasznai","year":"1999"},{"key":"b8","series-title":"Acta Psychiatr Neurol Scand","first-page":"1","article-title":"Continuous recording and control of ventricular fluid pressure in neurosurgical practice.","volume":"36","author":"Lundberg","year":"1960"},{"key":"b9","series-title":"Acta Neurochir","doi-asserted-by":"publisher","first-page":"569","DOI":"10.1007\/BF02751002","article-title":"ICP monitoring with a re-useable transducer: experimental and clinical evaluation of the Gaeltec ICT\/b pressure probe.","volume":"139","author":"Morgalla","year":"1997"},{"key":"b10","series-title":"J Med Eng Technol","doi-asserted-by":"publisher","first-page":"144","DOI":"10.1080\/030919099294195","article-title":"ICP measurement control: laboratory test of 7 types of intracranial pressure transducers.","volume":"23","author":"Morgalla","year":"1999"},{"key":"b11","series-title":"J Med Eng Technol","doi-asserted-by":"publisher","first-page":"10","DOI":"10.1080\/030919099294375","article-title":"ICP measurement accuracy: the effect of temperature drift. Design of a laboratory test for assessment of ICP transducers.","volume":"23","author":"Morgalla","year":"1999"},{"key":"b12","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"206","DOI":"10.3171\/jns.1987.67.2.0206","article-title":"Continuous monitoring of intracranial pressure with miniaturized fiberoptic device.","volume":"67","author":"Ostrup","year":"1987"},{"key":"b13","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"1142","DOI":"10.1227\/00006123-199506000-00012","article-title":"The evaluation of the wave-form analysis capability of a new strain-gauge intracranial pressure Micro-Sensor.","volume":"36","author":"Piper","year":"1995"},{"key":"b14","series-title":"Intracranial Pressure IX","first-page":"439","article-title":"Software for intracranial pressure recording and waveform analysis","author":"Zabolotny","year":"1994"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/95\/3\/article-p529.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/95\/3\/article-p529.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/95\/3\/article-p529.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,26]],"date-time":"2023-03-26T21:08:55Z","timestamp":1679864935000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/95\/3\/article-p529.xml"}},"subtitle":["Technical note"],"short-title":[],"issued":{"date-parts":[[2001,9]]},"references-count":14,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.3171\/jns.2001.95.3.0529","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[2001,9]]}}}