{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T13:00:26Z","timestamp":1762866026860},"reference-count":39,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2012,6,28]],"date-time":"2012-06-28T00:00:00Z","timestamp":1340841600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Robotics Computer Surgery"],"published-print":{"date-parts":[[2013,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>As a prerequisite in navigation\u2010assisted surgery, a three\u2010dimensional image data set with registration marker is necessary. Often patients are presented, not being aware of facing a computer\u2010assisted surgical intervention (CAS), with an already performed computed tomography (CT) data set without marker. The aim of this study was to evaluate the accuracy of a new method which allows performing CAS by enhancing the initial markerless data set with a marked subvolume gained by cone beam (CBCT) scan.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Therefore four registration markers are inserted and afterwards the patient is strongly limited to the field of interest scanned by CBCT scan (marked data set). Superimposed with the initial data set, a data set with reference markers and with full information is obtained.<\/jats:p><jats:p>Registration procedure was performed with group A (25 patients, superimposed marked CBCT scan) and group B (25 patients, initially marked CT scan) using BrainLab\u00ae navigation by two observers and overall system accuracy was measured using the registration landmarks and additional intraoperative landmarks (tooth cusps).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Adequate image quality assumed, no significant difference between group A and B was detected. Enhancing an initially performed data set with registration marker by using a marked subvolume could improve the workflow for navigation\u2010assisted surgery due to the availability of cone beam scan technology, provide excellent resolution with reduced metal artifacts nearby dental restorations, and reduce radiation dose for the patient.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Regarding the advantages of the new method which allows performing CAS by enhancing the initial markerless data set with a marked subvolume gained by cone beam (CBCT) scan, this technique will play a major part in navigation\u2010assisted surgery and will address widespread general methodological solutions that are of great interest in multidisciplinary treatment. Copyright \u00a9 2013 John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/rcs.1444","type":"journal-article","created":{"date-parts":[[2012,6,28]],"date-time":"2012-06-28T04:27:08Z","timestamp":1340857628000},"source":"Crossref","is-referenced-by-count":16,"title":["Referencing of markerless CT data sets with cone beam subvolume including registration markers to ease computer\u2010assisted surgery \u2010 A clinical and technical research"],"prefix":"10.1002","volume":"9","author":[{"given":"Harald","family":"Essig","sequence":"first","affiliation":[{"name":"Department of Craniomaxillofacial Surgery Hannover Medical School  Hannover Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Majeed","family":"Rana","sequence":"additional","affiliation":[{"name":"Department of Craniomaxillofacial Surgery Hannover Medical School  Hannover 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