Accuracy of magnetic resonance imaging-cone beam computed tomography rigid registration of the head: an in-vitro study

Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Mohammed A Q Al-SalehPaul W Major

Abstract

To evaluate the performance of cross-modality image registration procedure between magnetic resonance imaging (MRI) and cone beam computed tomography (CBCT). In vitro diagnostic MRI and CBCT images of 5 cadaver swine heads were obtained prospectively. Five radiopaque fiducial markers were attached to each cadaver skull by using resin screws. Automatic MRI-CBCT rigid registrations were performed. The specimens were then scanned using a 3-dimensional (3-D) laser scanner. The 3-D coordinate points for the centroid of the attached fiducial markers from laser scan were identified and considered ground truth. The distances between marker centroids were measured with MRI, CBCT, and MRI-CBCT. Accuracy was calculated by using repeated measures analysis of variance and mean difference values. The registration method was repeated 10 times for each specimen in MRI to measure the average error. There was no significant difference (P > .05) in mean distances of the markers between all images and the ground truth. The distances' mean difference between MRI, CBCT, and MRI-CBCT and the ground truth were 0.2 ± 1.1 mm, 0.3 ± 1.0 mm, 0.2 ± 1.2 mm, respectively. The detected method error ranged between 0.06 mm and 0.1 mm. The cross-modality image r...Continue Reading

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Citations

May 12, 2016·Journal of Otolaryngology - Head & Neck Surgery = Le Journal D'oto-rhino-laryngologie Et De Chirurgie Cervico-faciale·Mohammed A Q Al-SalehPaul W Major
Oct 22, 2016·Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology·Mohammed A Q Al-SalehPaul W Major
Feb 22, 2018·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Gero Stefan Michael KinzingerJörg Alexander Lisson
Jan 29, 2017·Journal of Otolaryngology - Head & Neck Surgery = Le Journal D'oto-rhino-laryngologie Et De Chirurgie Cervico-faciale·Mohammed A Q Al-SalehHadi Seikaly

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