Establishment of quality criteria for computed tomography in dentistry

牙科计算机断层扫描质量标准的建立

• 批准号: 17591974
• 负责人: SATO Kenji
• 金额: $ 2.46万
• 依托单位: The Nippon Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17591974/
• 关键词: dentistry; radiology; CT; optimization; radiation protection; quality criteria; image criteria; diagnostic reference level; 歯科; インプラント; DLP; 荷重CT線量指数; 線積分線量

he objectives of this research were to establish quality criteria for computed tomography in dentistry in order to promote optimization of radiological protection for patients. The quality criteria are divided into following three parts that are generally characteristic for the CT procedures : image criteria, diagnostic reference level (DRL) and example of good imaging technique. For evaluation of DRLs, survey of patient and measurements of dose-length products (DLPs) in dental implantation were studied. In addition, to use as QA/QC tool, characters of new optically stimulate luminescence CT dosimeter were measured and the ImpactDose program for estimating patient effective doses from CT were studied. The image criteria in CT for dental implantation were established as :<Upper jaw>1. Visualization of*1)zygomatic process, 2) grater palatine canal, 3) maxillary tuberosity, 4) pterygoid process of sphenoid bone, 5) pterygopalatine fossa, 6) details of bone trabecula2. Visually sharp reproduction of*2 1) floors of maxillary sinus, 2) anterior wall of maxillary sinus, 3) posterior wall of maxillary sinus, 4) lateral wall in maxillary sinus, 5) bony septum of maxillary sinus, 6) floors of nasal cavity, 7) incisive canal, 8) canine fossa, 9) temporal process of zygomatic bone, 10) contours of maxillary bone, 11) thickness of cortical bone, 12) postextraction<Lower jaw>1. Visualization of*11) inferior border of mandibular, 2) submandibular fossa, 3) sublingual fossa, 4) incisive branch of mandibular canal, 5) lingual foramen2. Visually sharp reproduction of*21) mental foramen, 2) mandibular canal, 3) contours of mandibular bone, 4) details of trabecular bone, 5) thickness of cortical bone, 6) postextraction*1 : Visualization of - The organs and structures are detectable in the volume of investigation.*2 : visually sharp reproduction of-anatomical details are clearly defined.

本研究的目的是建立牙科计算机断层扫描的质量标准，以促进患者放射防护的优化。质量标准分为以下三个部分，这些部分通常具有CT程序的特征：图像标准，诊断参考水平（DRL）和良好成像技术的示例。为了评价牙种植体的drl，对患者进行了调查，并对剂量长度产物（dlp）进行了测量。此外，为了作为质量保证/质量控制工具，测量了新型光刺激发光CT剂量计的特性，并研究了用于估计CT患者有效剂量的ImpactDose程序。建立种植牙的CT图像标准为：<上颌>1。*1)颧突，2)腭粗管，3)上颌结节，4)蝶骨翼状突，5)翼腭窝，6)骨小梁细节。*2)上颌窦底，2)上颌窦前壁，3)上颌窦后壁，4)上颌窦侧壁，5)上颌窦骨隔，6)鼻腔底，7)鼻管，8)犬窝，9)颧骨颞突，10)上颌骨轮廓，11)皮质骨厚度，12)拔牙后<下颌bb0 1。*11)下颌下缘，2)下颌下窝，3)舌下窝，4)下颌管锐支，5)舌孔。*21)颏孔，2)下颌管，3)下颌骨的轮廓，4)骨小梁的细节，5)皮质骨的厚度，6)拔牙后的可视化-器官和结构在调查的体积中被检测到。*2：视觉清晰，解剖细节清晰。

项目成果

Patient factors for patient dose criteria in preoperative CT for dental implant

种植牙术前CT患者剂量标准的患者因素

• 发表时间: 2006
• 作者: Kenji;Sato
• 通讯作者: Sato

歯科用CTの線積分線量から実効線量への換算係数

牙科CT线积分剂量到有效剂量的换算系数

• 发表时间: 2006
• 作者: Kenji;Sato;境野 利江
• 通讯作者: 境野 利江

A survey of patient entrance doses in intra-oral radiography

口腔内X光检查中患者入口剂量的调查

• 发表时间: 2008
• 作者: Kenji;Satc
• 通讯作者: Satc

ICRP新勧告が歯科X線検査における実効線量計算に及ぼす影響

新 ICRP 建议对牙科 X 射线检查有效剂量计算的影响

• 发表时间: 2008
• 作者: Rie;Sakaino;佐藤 健児
• 通讯作者: 佐藤 健児

歯科用コーンビームCT装置の線量比較

牙科锥形束CT设备剂量对比

• 发表时间: 2007
• 作者: Ikuo;Kobayashi;境野 利江
• 通讯作者: 境野 利江