{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T21:22:59Z","timestamp":1791321779075,"version":"4.3.1"},"reference-count":24,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","funder":[{"DOI":"10.13039\/100000002","name":"National Institute of Health","doi-asserted-by":"publisher","award":["R01 CA159324-03"],"award-info":[{"award-number":["R01 CA159324-03"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":["Operative Surg.","ONSURG"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>In open-cranial neurosurgery, preoperative magnetic resonance (pMR) images are typically coregistered for intraoperative guidance. Their accuracy can be significantly degraded by intraoperative brain deformation, especially when resection is involved.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>To produce model updated MR (uMR) images to compensate for brain shift that occurred during resection, and evaluate the performance of the image-updating process in terms of accuracy and computational efficiency.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>In 14 resection cases, intraoperative stereovision image pairs were acquired after dural opening and during resection to generate displacement maps of the surgical field. These data were assimilated by a biomechanical model to create uMR volumes of the evolving surgical field. A tracked stylus provided independent measurements of feature locations to quantify target registration errors (TREs) in the original coregistered pMR and uMR as surgery progressed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>Updated MR TREs were 1.66 \u00b1 0.27 and 1.92 \u00b1 0.49 mm in the 14 cases after dural opening and after partial resection, respectively, compared to 8.48 \u00b1 3.74 and 8.77 \u00b1 4.61 mm for pMR, respectively. The overall computational time for generating uMRs after partial resection was less than 10 min.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION<\/jats:title>\n                    <jats:p>We have developed an image-updating system to compensate for brain deformation during resection using a computational model with data assimilation of displacements measured with intraoperative stereovision imaging that maintains TREs less than 2 mm on average.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ons\/opx123","type":"journal-article","created":{"date-parts":[[2017,6,27]],"date-time":"2017-06-27T14:19:27Z","timestamp":1498573167000},"page":"402-411","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":22,"title":["Image Updating for Brain Shift Compensation During 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Hampshire"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Songbai","family":"Ji","sequence":"additional","affiliation":[{"name":"Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire"},{"name":"Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy J","family":"Schaewe","sequence":"additional","affiliation":[{"name":"Medtronic, PLC, Brain Therapies, Neurosurgery, Louisville, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David A","family":"Simon","sequence":"additional","affiliation":[{"name":"Medtronic, PLC, Brain Therapies, Neurosurgery, Louisville, Colorado"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keith D","family":"Paulsen","sequence":"additional","affiliation":[{"name":"Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire"},{"name":"Department of Su, Geisel School 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