牙源性囊肿：使用牙科CT软件程序改善成像
Odontogenic cysts: improved imaging with a dental CT software program.
作者信息
Abrahams J J, Oliverio P J
机构信息
Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, CT 06510.
出版信息
AJNR Am J Neuroradiol. 1993 Mar-Apr;14(2):367-74.
PURPOSE
To evaluate a dental CT software program to determine whether it can provide a better means of assessing odontogenic cysts, lesions of the jaw derived from dental epithelium, than conventional techniques (orthopantomographic, intraoral, and mandibular films), which are of limited usefulness because of the curved configuration of the mandible; and to provide a brief review of these lesions.
METHODS
Nine odontogenic cysts were studied with conventional radiographs and with the software program, which displays multiple cross-referenced axial, panoramic, and cross-sectional (unique to this program) views of the mandible. The two modalities were compared for delineation of anatomy (inferior alveolar canal, mandibular foramen, mental foramen), detection of neurovascular bundle displacement, detection of cortical bone involvement, and detection of root involvement.
RESULTS
The software program rated higher regarding all four points. It was found to be superior for delineating anatomy and detecting mandibular canal displacement and cortical and root involvement.
CONCLUSIONS
This software program should be the study of choice when evaluating odontogenic cysts and other lesions of the mandible.
目的
评估一种牙科CT软件程序，以确定其是否能提供比传统技术（口腔全景片、口内片和下颌骨片）更好的评估牙源性囊肿（源自牙上皮的颌骨病变）的方法，传统技术因下颌骨的弯曲形态而实用性有限；并对这些病变进行简要综述。
方法
使用传统X线片和该软件程序对9个牙源性囊肿进行研究，该软件程序可显示下颌骨的多个相互参照的轴向、全景和横断面（该程序独有的）视图。比较这两种方式在解剖结构描绘（下牙槽神经管、下颌孔、颏孔）、神经血管束移位检测、皮质骨受累检测和牙根受累检测方面的情况。
结果
该软件程序在所有四点上评分更高。发现其在描绘解剖结构、检测下颌神经管移位以及皮质骨和牙根受累方面更具优势。
结论
在评估牙源性囊肿和下颌骨的其他病变时，该软件程序应作为首选研究方法。
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