Mohammed A Q Al-Saleh1, Noura Alsufyani2, Hollis Lai3, Manuel Lagravere3, Jacob L Jaremko4, Paul W Major5. 1. Orthodontic Graduate Program, School of Dentistry, University of Alberta, Edmonton Clinic Health Academy (ECHA), Edmonton, Alberta, Canada. Electronic address: m.alsaleh@ualberta.ca. 2. Assistant Professor, School of Dentistry, University of Alberta, Edmonton Clinic Health Academy (ECHA), Edmonton, Alberta, Canada; Assistant Professor, College of Dentistry, King Saud University, Riyadh, Saudi Arabia. 3. Assistant Professor, School of Dentistry, University of Alberta, Edmonton Clinic Health Academy (ECHA), Edmonton, Alberta, Canada. 4. Assistant Professor, Department of Radiology and Diagnostic Imaging, Faculty of Medicine and Dentistry, University of Alberta, W.C. Mackenzie Health Science Center, Edmonton, Alberta, Canada. 5. Lead, School of Dentistry, Professor and Chair, Faculty of Medicine and Dentistry, University of Alberta, Edmonton Clinic Health Academy (ECHA), Edmonton, Alberta, Canada.
Abstract
OBJECTIVE: To assess whether novice examiners can more reliably determine temporomandibular joint (TMJ) disk derangements with the use of fused images of magnetic resonance imaging and cone beam computed tomography (MRI-CBCT) compared with MRI images alone. STUDY DESIGN: Thirty dental students with minimal exposure to TMJ imaging received a 30-minute calibration session in which TMJ diagnostic imaging and the normal anatomy of the TMJ internal derangement were explained. The students evaluated the disk positions of 16 TMJs in two sets of images (MRI images alone and MRI-CBCT images) randomly and independently. The disk positions evaluated by two experienced radiologists were used for comparison. RESULTS: The internal consistency among all students improved from an unacceptable consistency (α = 0.40) with MRI images alone to a good consistency (α = 0.84) with MRI-CBCT images. The agreement in evaluation between the students and the radiologists improved from a poor agreement with MRI images alone (k mean = 0.07 ± 0.12) to a moderate agreement with MRI-CBCT images (k mean = 0.55 ± 0.25). This improvement in the agreement was significant (P < .001). CONCLUSIONS: The use of fused MRI and CBCT images to visualize the TMJ in a single display significantly improved the examiners' reliability and accuracy of assessment of disk positions. The improvement of novice readers in assessing the disk positions highlights the potential use of MRI-CBCT image fusion as an educational tool.
OBJECTIVE: To assess whether novice examiners can more reliably determine temporomandibular joint (TMJ) disk derangements with the use of fused images of magnetic resonance imaging and cone beam computed tomography (MRI-CBCT) compared with MRI images alone. STUDY DESIGN: Thirty dental students with minimal exposure to TMJ imaging received a 30-minute calibration session in which TMJ diagnostic imaging and the normal anatomy of the TMJ internal derangement were explained. The students evaluated the disk positions of 16 TMJs in two sets of images (MRI images alone and MRI-CBCT images) randomly and independently. The disk positions evaluated by two experienced radiologists were used for comparison. RESULTS: The internal consistency among all students improved from an unacceptable consistency (α = 0.40) with MRI images alone to a good consistency (α = 0.84) with MRI-CBCT images. The agreement in evaluation between the students and the radiologists improved from a poor agreement with MRI images alone (k mean = 0.07 ± 0.12) to a moderate agreement with MRI-CBCT images (k mean = 0.55 ± 0.25). This improvement in the agreement was significant (P < .001). CONCLUSIONS: The use of fused MRI and CBCT images to visualize the TMJ in a single display significantly improved the examiners' reliability and accuracy of assessment of disk positions. The improvement of novice readers in assessing the disk positions highlights the potential use of MRI-CBCT image fusion as an educational tool.
Authors: Bo Zhou; Zachary Augenfeld; Julius Chapiro; S Kevin Zhou; Chi Liu; James S Duncan Journal: Med Image Anal Date: 2021-03-21 Impact factor: 13.828
Authors: Imke Boekestijn; Samaneh Azargoshasb; Matthias N van Oosterom; Leon J Slof; Petra Dibbets-Schneider; Jenny Dankelman; Arian R van Erkel; Daphne D D Rietbergen; Fijs W B van Leeuwen Journal: Int J Comput Assist Radiol Surg Date: 2022-08-07 Impact factor: 3.421