Comparative study of jaws with multislice computed tomography and cone-beam computed tomography

被引：60

作者：

Carrafiello, G. ^{[1
]}

Dizonno, M. ^{[1
]}

Colli, V. ^{[2
]}

Strocchi, S. ^{[2
]}

Taubert, S. Pozzi ^{[3
]}

Leonardi, A. ^{[1
]}

Giorgianni, A. ^{[1
]}

Barresi, M. ^{[1
]}

Macchi, A. ^{[3
]}

Bracchi, E. ^{[1
]}

Conte, L. ^{[2
]}

Fugazzola, C. ^{[1
]}

机构：

[1] Univ Insubria, Dept Radiol, I-21100 Varese, Italy

[2] Univ Insubria, Dept Med Phys, I-21100 Varese, Italy

[3] Univ Insubria, Dept Stomatol, I-21100 Varese, Italy

来源：

RADIOLOGIA MEDICA | 2010年 / 115卷 / 04期

关键词：

Cone-beam computed tomography; Radiation dose; Jaw; Image quality; CONVENTIONAL RADIOGRAPHY; MAXILLOFACIAL RADIOLOGY; MULTIDETECTOR CT; MACHINE;

D O I：

10.1007/s11547-010-0520-5

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：

Purpose. The aim of this study was to compare the dosimetric and diagnostic performance of multislice computed tomography (MSCT) and cone-beam computed tomography (CBCT) in the study of the dental arches. Materials and methods. Effective dose and dose to the main organs of the head and neck were evaluated by means of thermoluminescent dosimeters (TLDs) placed in an Alderson Rando anthropomorphic phantom and using a standard CBCT protocol and an optimised MSCT protocol. Five patients with occlusal plane ranging from 54 cm to 59 cm who needed close follow-up (range 1-3 months) underwent both examinations. Image quality obtained with CBCT and MSCT was evaluated. Results. Effective close and dose to the main organs of the head and neck were higher for MSCT than for CBCT. Image quality of CBCT was judged to be equivalent to that of MSCT for visualising teeth and bone but inferior for visualising soft tissues. Beam-hardening artefacts due to dental-care material and implants were weaker at CBCT than at MSCT. Conclusions. When panoramic radiography is not sufficient in the study of the teeth and jaw bones, CBCT can provide identical information to MSCT, with a considerable dose reduction. MSCT is, however, indicated when evaluation of soft tissue is required.

引用

页码：600 / 611

页数：12

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