Li G, van der Stelt P F, Verheij J G C, Speller R, Galbiati A, Psomadellis F, Turchetta R, Theodoridis S, Hall G, Avset B S, Triantis F A, Longo R
Department of Oral and Maxillofacial Radiology, ACTA. Louwesweg 1, 1066EA, Amsterdam, The Netherlands.
Dentomaxillofac Radiol. 2006 May;35(3):147-51. doi: 10.1259/dmfr/54712734.
To survey end-user opinions on dental digital sensor characteristics for the design of a new X-ray imaging sensor.
100 questionnaires were sent out to dentists and dental radiologists. The questionnaire consisted of six parts related to dental sensors. A: Details about the respondent; B: Prioritization of most important aspects of digital sensors; C: Rating advantages and D: disadvantages of digital sensors; F: Dental features that need to be enhanced by digital sensors; G: End-user comments.
Fifty-six questionnaires were returned. Contrast resolution and imaging time were assessed as the most and the least important aspects, respectively. Aspects considered as advantages by approximately 80% of respondents were: optimal contrast resolution, increased specificity, increased discrimination between diseased and healthy tissue, increased sensitivity, lower dose to the patient by more than 20%; as a disadvantage, increased patient dose was given. Dental features considered important by over 80% of the respondents were for intraoral radiographs: the visibility of caries, periapical, periodontal, and bone lesions; for panoramic radiographs: reduction of ghost images, image sharpness and bone. Bone and soft tissues on cephalograms and bone on temporomandibular joint (TMJ) tomograms were mentioned by over 70%.
The most desired characteristic for a new sensor is contrast resolution. Dose saving is not considered as important unless it is more than 20%. Examination time is not a major issue. Caries, periapical and periodontal, and bone lesions for intraoral radiographs, reduction of ghost images, image sharpness and bone for panoramic radiographs were the most frequently mentioned dental features that should be enhanced by digital sensors.
为设计新型X射线成像传感器，调查终端用户对牙科数字传感器特性的看法。
向牙医和牙科放射科医生发放了100份问卷。问卷由与牙科传感器相关的六个部分组成。A：受访者详细信息；B：数字传感器最重要方面的优先级排序；C：数字传感器优点评分；D：数字传感器缺点评分；F：数字传感器需要增强的牙科特征；G：终端用户评论。
共收回56份问卷。对比度分辨率和成像时间分别被评定为最重要和最不重要的方面。约80%的受访者认为数字传感器的优点包括：最佳对比度分辨率、更高的特异性、病变组织与健康组织之间的辨别力增强、灵敏度提高、患者剂量降低超过20%；缺点是患者剂量增加。超过80%的受访者认为重要的牙科特征，对于口腔内X光片而言，是龋齿、根尖周、牙周和骨病变的可见性；对于全景X光片而言，是减少伪影、图像清晰度和骨骼显示。超过70%的受访者提到了头颅侧位片上的骨骼和软组织以及颞下颌关节（TMJ）断层片上的骨骼。
新型传感器最需要的特性是对比度分辨率。除非剂量节省超过20%，否则其重要性不被视为很高。检查时间不是主要问题。口腔内X光片的龋齿、根尖周和牙周以及骨病变，全景X光片的伪影减少、图像清晰度和骨骼显示，是数字传感器应增强的最常被提及的牙科特征。
