单独使用磁共振成像（MRI）与磁共振成像-锥形束计算机断层扫描（MRI-CBCT）配准图像评估颞下颌关节内紊乱。
MRI alone versus MRI-CBCT registered images to evaluate temporomandibular joint internal derangement.
作者信息
Al-Saleh Mohammed A Q, Alsufyani Noura A, Lagravere Manuel, Nebbe Brian, Lai Hollis, Jaremko Jacob L, Major Paul W
机构信息
School of Dentistry, University of Alberta, Edmonton, Alberta, Canada.
School of Dentistry, University of Alberta, Edmonton, Alberta, Canada; Faculty of Dentistry, King Saud University, Riyadh, Saudi Arabia.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol. 2016 Nov;122(5):638-645. doi: 10.1016/j.oooo.2016.07.024. Epub 2016 Aug 6.
OBJECTIVE
To evaluate the effect of magnetic resonance imaging-cone beam computed tomography (MRI-CBCT) image registration on inter- and intraexaminer consistency when evaluating temporomandibular joint (TMJ) internal derangement compared to MRI alone.
METHODS
MRI and CBCT images of 25 patients (50 TMJs) were obtained and coregistered using mutual-information rigid image registration via Mirada XD software. Two experienced radiologists independently and blindly evaluated two types of images (MRI alone and MRI-CBCT registered images) at two different times (T1 and T2) for TMJ internal derangement, based on sagittal and coronal articular disc position in relation to the head of the condyle and the posterior slope of the articular eminence.
RESULTS
The intraexaminer consistency with MRI alone (examiner 1 = 0.85 [0.74-0.92]; examiner 2 = 0.91 [0.84-0.95]) was lower than for the MRI-CBCT registered images (examiner 1 = 0.95 [0.91-0.97]; examiner 2 = 0.97 [0.96-0.99]). The interexaminer consistency of evaluating internal derangement with MRI alone (0.52 [0.18-0.73] at T1; 0.71 [0.45-0.84] at T2) was lower than for the MRI-CBCT registered images (0.97 [0.95-0.98] at T1; 0.98 [0.96-0.99] at T2). When disc position classification was dichotomized to normal versus anteriorly displaced, intraexaminer agreement for the two examiners was 0.52 and 0.63 for MRI alone, but was 0.91 and 0.92 for MRI-CBCT registered images. Interexaminer agreement for MRI alone was 0.29 at T1 and 0.42 at T2, but was 0.96 at both examination times for MRI-CBCT registered images.
CONCLUSION
The MRI-CBCT registered images improved intra- and interexaminer consistency in the evaluation of internal derangement of TMJ.
目的
与单独使用磁共振成像（MRI）相比，评估磁共振成像 - 锥束计算机断层扫描（MRI - CBCT）图像配准在评估颞下颌关节（TMJ）内部紊乱时对检查者间和检查者内一致性的影响。
方法
获取25例患者（50个TMJ）的MRI和CBCT图像，并通过Mirada XD软件使用互信息刚性图像配准进行配准。两名经验丰富的放射科医生在两个不同时间点（T1和T2）独立且盲法评估两种类型的图像（单独的MRI图像和MRI - CBCT配准图像），以确定TMJ内部紊乱情况，评估基于矢状面和冠状面关节盘相对于髁突头部和关节结节后斜面的位置。
结果
单独使用MRI时检查者内一致性（检查者1 = 0.85 [0.74 - 0.92]；检查者2 = 0.91 [0.84 - 0.95]）低于MRI - CBCT配准图像（检查者1 = 0.95 [0.91 - 0.97]；检查者2 = 0.97 [0.96 - 0.99]）。单独使用MRI评估内部紊乱时检查者间一致性（T1时为0.52 [0.18 - 0.73]；T2时为0.71 [0.45 - 0.84]）低于MRI - CBCT配准图像（T1时为0.97 [0.95 - 0.98]；T2时为0.98 [0.96 - 0.99]）。当将盘位置分类分为正常与向前移位时，单独使用MRI时两名检查者的检查者内一致性分别为0.52和0.63，而MRI - CBCT配准图像则为0.91和0.92。单独使用MRI时检查者间一致性在T1时为0.29，T2时为0.42，而MRI - CBCT配准图像在两个检查时间点均为0.96。
结论
MRI - CBCT配准图像提高了TMJ内部紊乱评估中检查者内和检查者间的一致性。
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