{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T03:15:23Z","timestamp":1784258123385,"version":"3.55.0"},"reference-count":12,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2011,2,8]],"date-time":"2011-02-08T00:00:00Z","timestamp":1297123200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"T-Doc LLC"},{"DOI":"10.13039\/100007312","name":"Cleveland Clinic Foundation","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100007312","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Rehabilitation Research & Development Service of the Department of Veterans Affairs"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neurourology and Urodynamics"],"published-print":{"date-parts":[[2011,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aims<\/jats:title><jats:p>Catheter systems are utilized to measure pressure for diagnosis of voiding dysfunction. In a clinical setting, patient movement and urodynamic pumps introduce hydrostatic and motion artifacts into measurements. Therefore, complete characterization of a catheter system includes its response to artifacts as well its frequency response. The objective of this study was to compare the response of two disposable clinical catheter systems: water\u2010filled and air\u2010charged, to controlled pressure signals to assess their similarities and differences in pressure transduction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We characterized frequency response using a transient step test, which exposed the catheters to a sudden change in pressure; and a sinusoidal frequency sweep test, which exposed the catheters to a sinusoidal pressure wave from 1 to 30\u2009Hz. The response of the catheters to motion artifacts was tested using a vortex and the response to hydrostatic pressure changes was tested by moving the catheter tips to calibrated heights.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Water\u2010filled catheters acted as an underdamped system, resonating at 10.13\u2009\u00b1\u20091.03\u2009Hz and attenuating signals at frequencies higher than 19\u2009Hz. They demonstrated significant motion and hydrostatic artifacts. Air\u2010charged catheters acted as an overdamped system and attenuated signals at frequencies higher than 3.02\u2009\u00b1\u20090.13\u2009Hz. They demonstrated significantly less motion and hydrostatic artifacts than water\u2010filled catheters. The transient step and frequency sweep tests gave comparable results.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Air\u2010charged and water\u2010filled catheters respond to pressure changes in dramatically different ways. Knowledge of the characteristics of the pressure\u2010measuring system is essential to finding the best match for a specific application. Neurourol. Urodynam. 30:329\u2013334, 2011. \u00a9 2011 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/nau.20991","type":"journal-article","created":{"date-parts":[[2011,2,9]],"date-time":"2011-02-09T11:55:53Z","timestamp":1297252553000},"page":"329-334","source":"Crossref","is-referenced-by-count":58,"title":["Comparison of air\u2010charged and water\u2010filled urodynamic pressure measurement catheters"],"prefix":"10.1002","volume":"30","author":[{"given":"M.A.","family":"Cooper","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.C.","family":"Fletter","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.J.","family":"Zaszczurynski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.S.","family":"Damaser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,2,8]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2009.01.007"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1038\/nrurol.2010.26"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/nau.10066"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.3109\/03091908709062796"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.juro.2008.05.028"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/nau.10051"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02478747"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00192-004-1121-4"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1002\/nau.20764"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF01621814"},{"key":"e_1_2_7_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(70)90172-9"},{"key":"e_1_2_7_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9290(01)00006-9"}],"container-title":["Neurourology and Urodynamics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fnau.20991","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fnau.20991","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/nau.20991","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,7]],"date-time":"2023-10-07T14:57:16Z","timestamp":1696690636000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/nau.20991"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,2,8]]},"references-count":12,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2011,3]]}},"alternative-id":["10.1002\/nau.20991"],"URL":"https:\/\/doi.org\/10.1002\/nau.20991","archive":["Portico"],"relation":{},"ISSN":["0733-2467","1520-6777"],"issn-type":[{"value":"0733-2467","type":"print"},{"value":"1520-6777","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,2,8]]}}}