A comparative evaluation of Cone Beam Computed Tomography (CBCT) and Multi-Slice CT (MSCT) Part I. On subjective image quality

被引:262
作者
Liang, Xin [1 ,2 ]
Jacobs, Reinhilde [1 ]
Hassan, Bassam [3 ]
Li, Limin [4 ]
Pauwels, Ruben [1 ]
Corpas, Livia [1 ]
Souza, Paulo Couto [1 ]
Martens, Wendy [5 ]
Shahbazian, Maryam [1 ]
Alonso, Arie [6 ]
Lambrichts, Ivo [5 ]
机构
[1] Catholic Univ Louvain, Oral Imaging Ctr, Sch Dent Oral Pathol & Maxillofacial Surg, Fac Med, B-3000 Louvain, Belgium
[2] Dalian Med Univ, Coll Stomatol, Dalian, Peoples R China
[3] Acad Ctr Dent Amsterdam ACTA, Dept Oral Radiol, Amsterdam, Netherlands
[4] Catholic Univ Louvain, Dept Paediat Dent & Special Dent Care, Sch Dent Oral Pathol & Maxillofacial Surg, Fac Med, B-3000 Louvain, Belgium
[5] Univ Hasselt, Fac Med, Dept Basic Med Sci, Diepenbeek, Belgium
[6] Univ Hasselt, Dept Biostat & Stat Bioinformat, Diepenbeek, Belgium
关键词
Cone Beam Computed Tomography; Dentomaxillofacial; Image quality; Mandible; Anatomical landmarks; SPIRAL CT; IMPLANT PLACEMENT; IN-VITRO; ACCURACY; SYSTEMS; FRACTURES; SURGERY; SCAN; BONE;
D O I
10.1016/j.ejrad.2009.03.042
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Aims: To compare image quality and visibility of anatomical structures in the mandible between five Cone Beam Computed Tomography (CBCT) scanners and one Multi-Slice CT (MSCT) system. Materials and methods: One dry mandible was scanned with five CBCT scanners (Accuitomo 3D, i-CAT, NewTom 3G, Galileos, Scanora 3D) and one MSCT system (Somatom Sensation 16) using 13 different scan protocols. Visibility of 11 anatomical structures and overall image noise were compared between CBCT and MSCT. Five independent observers reviewed the CBCT and the MSCT images in the three orthographic planes (axial, sagittal and coronal) and assessed image quality on a five-point scale. Results: Significant differences were found in the visibility of the different anatomical structures and image noise level between MSCT and CBCT and among the five CBCT systems (p = 0.0001). Delicate structures such as trabecular bone and periodontal ligament were significantly less visible and more variable among the systems in comparison with other anatomical structures (p = 0.0001). Visibility of relatively large structures such as mandibular canal and mental foramen was satisfactory for all devices. The Accuitomo system was superior to MSCT and all other CBCT systems in depicting anatomical structures while MSCT was superior to all other CBCT systems in terms of reduced image noise. Conclusions: CBCT image quality is comparable or even superior to MSCT even though some variability exists among the different CBCT systems in depicting delicate structures. Considering the low radiation dose and high-resolution imaging, CBCT could be beneficial for dentomaxillofacial radiology. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:265 / 269
页数:5
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