{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T14:38:07Z","timestamp":1787236687700,"version":"build-2736575974"},"reference-count":9,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2021,12,19]],"date-time":"2021-12-19T00:00:00Z","timestamp":1639872000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Ultrasound Medicine"],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Point\u2010of\u2010care ultrasound (POCUS) is a readily available imaging modality in many emergency departments and health care facilities globally. Optic nerve sheath diameter (ONSD) measurement via ocular ultrasound has been shown to accurately predict increased intracranial pressure. Classically, the preferred technique for sonographic measurement of ONSD has specified measurement at an optimal position of 3\u2009mm posterior to the globe. This study aims to validate an alternative approach of depth measurement (between 3 and 8\u2009mm), with the hypothesis that ONSD should not change in size as the distance posterior to the globe increases.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Healthy volunteers aged\u2009&gt;\u200918\u2009years were studied. A point 3\u2009mm posterior to the optic disc was located. This was repeated at a point 5\u2009mm as well as 8\u2009mm posterior to the globe.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We enrolled 10 healthy participants. When evaluating variability in ONSD measurements at each of the three distances, we found that the difference in the measurements at each distance was statistically significant. In investigating pairwise comparisons, there was no difference between 3 and 5\u2009mm, but there were differences in ONSD measurements at 3 and 8\u2009mm, as well as at 5 and 8\u2009mm.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>POCUS is readily available in many emergency departments and health care facilities across the world. The classically preferred technique for sonographic measurement of ONSD has specified measurement at an optimal position of 3\u2009mm posterior to the globe. Our results identified that ONSD can be measured between 3 and 5\u2009mm with no significant changes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jum.15925","type":"journal-article","created":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T02:53:56Z","timestamp":1639968836000},"page":"2425-2430","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Posterior Globe Depth for Optic Nerve Sheath Diameter Measurement in Ocular Ultrasound in Healthy Volunteers"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9627-5444","authenticated-orcid":false,"given":"Stephen","family":"Petrou","sequence":"first","affiliation":[{"name":"Emergency Department Good Samaritan Hospital Medical Center  West Islip NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher","family":"Raio","sequence":"additional","affiliation":[{"name":"Emergency Department Good Samaritan Hospital Medical Center  West Islip NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren","family":"Klein","sequence":"additional","affiliation":[{"name":"Emergency Department Good Samaritan Hospital Medical Center  West Islip NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Felicetta","sequence":"additional","affiliation":[{"name":"Emergency Department Good Samaritan Hospital Medical Center  West Islip NY USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,12,19]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-011-2224-2"},{"key":"e_1_2_7_3_1","first-page":"22","article-title":"Optic nerve sheath ultrasound for the bedside diagnosis of intracranial hypertension: pitfalls and potential","volume":"1","author":"Shevlin C","year":"2015","journal-title":"Crit Care Horizons"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.86.10.1109"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01383383"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1038\/eye.2014.210"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-009-3315-6_99"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0002-9394(14)73195-2"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.annemergmed.2006.06.040"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1097\/MEJ.0b013e32835105c8"}],"container-title":["Journal of Ultrasound in Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jum.15925","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jum.15925","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jum.15925","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,23]],"date-time":"2023-08-23T12:08:50Z","timestamp":1692792530000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jum.15925"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,19]]},"references-count":9,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2022,10]]}},"alternative-id":["10.1002\/jum.15925"],"URL":"https:\/\/doi.org\/10.1002\/jum.15925","archive":["Portico"],"relation":{},"ISSN":["0278-4297","1550-9613"],"issn-type":[{"value":"0278-4297","type":"print"},{"value":"1550-9613","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12,19]]},"assertion":[{"value":"2021-06-06","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-12-06","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-12-19","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}