{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T08:45:00Z","timestamp":1778575500760,"version":"3.51.4"},"reference-count":27,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2022,3,19]],"date-time":"2022-03-19T00:00:00Z","timestamp":1647648000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,3,19]],"date-time":"2022-03-19T00:00:00Z","timestamp":1647648000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Neurol"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background and objective<\/jats:title>\n                    <jats:p>Inhere we evaluated the diagnostic utility of Doppler sonography (DS) of the anterior cerebral artery (ACA), middle cerebral artery (MCA) and the basilar arteries (BA) based on resistive index (RI) for the diagnosis of asphyxia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this multi-centered cross-sectional study, neonates with clinical diagnosis of asphyxia, were considered for study. During the first 24\u00a0h, neonates underwent DS. MRI was done for each neonate during the first month, after discharge or during hospital admission, after obtaining clinical stability. Staging based on DS was compared with staging based on MRI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Overall, 34 patients entered the study. DS of the ACA, MCA, BA all had significant correlation with MRI findings (regarding severity of asphyxia) (\n                      <jats:italic>r<\/jats:italic>\n                      \u2009&gt;\u20090.8 and\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001).\n                    <\/jats:p>\n                    <jats:p>In the receiver-operating-characteristic analysis, ideal cut-off point for diagnoses of asphyxia based on ACA and BA was RI\u2009\u2264\u20090.62 [area under the curve (AUC)\u2009=\u20090.957 and 95% CI: 0.819\u20130.997; sensitivity\u2009=\u200995.65; specificity\u2009=\u2009100; positive predictive value (PPV)\u2009=\u2009100; negative predictive value (NPV)\u2009=\u200990.9 and negative likelihood ratio (NLR)\u2009=\u20090.043]. Regarding MCA, similarly, a RI\u2009\u2264\u20090.62 was ideal for differentiating between normal and asphyxiated neonates (AUC\u2009=\u20090.990 and 95% CI: 0.873\u20131; sensitivity\u2009=\u200991.30; specificity\u2009=\u2009100; PPV\u2009=\u200991.2; NPV\u2009=\u2009100 and NLR\u2009=\u20090.087).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>For evaluating neonates clinically suspected of asphyxia, especially in centers with limited facilities such as MRI, DS can be used as a first line diagnostic modality and RI of\u2009\u2264\u20090.62 is an appropriate cut-off for the diagnosis of perinatal asphyxia.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12883-022-02624-2","type":"journal-article","created":{"date-parts":[[2022,3,19]],"date-time":"2022-03-19T04:19:43Z","timestamp":1647663583000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Using Doppler sonography resistive index for the diagnosis of perinatal asphyxia: a multi-centered study"],"prefix":"10.1186","volume":"22","author":[{"given":"Parisa","family":"Pishdad","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fatemeh","family":"Yarmahmoodi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tannaz","family":"Eghbali","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peyman","family":"Arasteh","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seyyed Mostajab","family":"Razavi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,3,19]]},"reference":[{"issue":"3","key":"2624_CR1","doi-asserted-by":"publisher","first-page":"423","DOI":"10.1016\/j.clp.2016.04.003","volume":"43","author":"CA Herrera","year":"2016","unstructured":"Herrera CA, Silver RM. 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All patients (legal guardians) gave their informed and written consent to enter the study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Patients (legal guardians) gave their written and informed consent for the publication of data.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"Authors have no competing interest to declare regarding the manuscript.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"104"}}