2008年8月
Diffusion tensor tractography for the inferior alveolar nerve (V3): initial experiment
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY
- ,
- ,
- ,
- ,
- ,
- 巻
- 106
- 号
- 2
- 開始ページ
- 270
- 終了ページ
- 274
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.tripleo.2008.03.015
- 出版者・発行元
- MOSBY-ELSEVIER
Objective. The inferior alveolar nerve is the third branch (V3) of the trigeminal nerve and one of the important nerves in dental treatment clinically. In particular, in the assessment of nerve invasion by malignant tumors of jaw bone, diagnostic imaging of the inferior alveolar nerve is essential. The purpose of this study was to evaluate the application of diffusion tensor tractography (DTT) in the mandible for the visualization of the inferior alveolar nerve as an initial experiment.
Study design. The subjects were 10 healthy volunteers. Magnetic resonance (MR) imaging was performed using a 1.5-T MR unit (Intera Achiva; Philips Medical Systems). The raw data from the DTT sequence images were transferred to an off-line workstation, which used Philips Research Imaging Development Environment software for image registration and fiber tracking.
Results. Because the signal-to-noise ratio in DTT of oral and maxillofacial structures was low, it was difficult to set regions of interest exactly on the inferior alveolar nerve, though this becomes easier by overlaying of T1-weighted images. Thus the inferior alveolar nerve was observed running inside of the mandible in all tested cases.
Conclusions. In conclusion, we successfully visualized the inferior alveolar nerve by the automatic fiber tracking method of DTT in normal volunteers. Further application and assessment will be necessary in pathologic states of the mandible.
Study design. The subjects were 10 healthy volunteers. Magnetic resonance (MR) imaging was performed using a 1.5-T MR unit (Intera Achiva; Philips Medical Systems). The raw data from the DTT sequence images were transferred to an off-line workstation, which used Philips Research Imaging Development Environment software for image registration and fiber tracking.
Results. Because the signal-to-noise ratio in DTT of oral and maxillofacial structures was low, it was difficult to set regions of interest exactly on the inferior alveolar nerve, though this becomes easier by overlaying of T1-weighted images. Thus the inferior alveolar nerve was observed running inside of the mandible in all tested cases.
Conclusions. In conclusion, we successfully visualized the inferior alveolar nerve by the automatic fiber tracking method of DTT in normal volunteers. Further application and assessment will be necessary in pathologic states of the mandible.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.tripleo.2008.03.015
- ISSN : 1079-2104
- Web of Science ID : WOS:000257764000016