使用牙科磁共振成像对下颌神经血管束进行定位
Localization of the mandibular neurovascular bundle using dental magnetic resonance imaging.
作者信息
Nasel C, Gahleitner A, Breitenseher M, Czerny C, Glaser C, Solar P, Imhof H
机构信息
Department of Radiology, University of Vienna, Währingergürtel, Austria.
出版信息
Dentomaxillofac Radiol. 1998 Sep;27(5):305-7. doi: 10.1038/sj/dmfr/4600379.
OBJECTIVE
To assess the reliability of a commercially available 3D-MPR MRI program for the jaws for imaging the mandibular neurovascular bundle.
METHODS
A gradient echo sequence (TR: 49 ms/TE: 6.3 ms/flip angle: 25 degrees/excitations: 3) with a spectral fat suppression pre-impulse and a voxel size of 0.9 x 0.9 x 0.8 mm was designed. Cross-sectional and panoramic reconstruction of the whole mandible were performed from the axial scans using Easy Vision (Philips, Best, The Netherlands) software package. The ability of differentiate the mandibular neurovascular bundle was assessed in 11 patients.
RESULTS
The mandibular neurovascular bundle was clearly visualized in all cases.
CONCLUSION
Dental MRI is a possible alternative to plain films or CT for patients requiring surgery near the mandibular canal.
目的
评估一种市售的用于颌骨的3D-MPR MRI程序对下颌神经血管束成像的可靠性。
方法
设计了一种具有频谱脂肪抑制预脉冲且体素大小为0.9×0.9×0.8 mm的梯度回波序列（TR：49 ms/TE：6.3 ms/翻转角：25度/激励次数：3）。使用Easy Vision（飞利浦，贝斯特，荷兰）软件包从轴向扫描进行整个下颌骨的横断面和全景重建。对11例患者评估区分下颌神经血管束的能力。
结果
在所有病例中均清晰显示了下颌神经血管束。
结论
对于需要在靠近下颌管处进行手术的患者，牙科MRI可能是平片或CT的一种替代方法。
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