The Role of Cone-Beam Computed Tomography in Diagnostics of Cystic Masses of the Jaw

M A Batova

doi:10.24835/1607-0763-2017-3-14-19

Abstract

Research objective. The study aimed to evaluate cone-beam computed tomography (CBCT) capabilities in diagnostics of cystic masses of the jaw.Methods. Over a period of 2015–2016 32 patients age 6 to 67 underwent both panoramic tomography and CBCT (using panoramic tomographic scanner STRATO 2000 and cone-beam computed tomographic scanner i-Cat respectively). 47% (n = 15) of the participants were women, 53% (n = 17) – men. Radiation exposure for a single procedure amounts to 0,05 mSv for panoramic tomography, 0,07 mSv for CBCT (FOV =13 cm), 0,06 mSv for CBCT (FOV =8 cm).Results. Comparative analysis of obtained results demonstrates that CBCT showed 54% (n = 27) more cystic masses of the jaws than panoramic radiography could. CBCT additionally showed the following pathologies: granulomas smaller than4 mm diameter – 85% (n = 23), 83% (n = 23) of said granulomas were found on maxilla, radicular cysts of maxilla – 11% (n = 3), incisive canal cyst – 4% (n = 1). Additionally panoramic tomography analysis misdiagnosed 5 granulomas (80% (n = 4) on mandibular premolar and molar areas) that were not found during CBCT analysis.Conclusion. The low effective dose and high informativity of CBCT enables the method to be used instead of intraoral radiography, panoramic tomography and MSCT as a screening procedure in diagnostics of dento-facial system pathologies, including cystic masses of the jaw.

Highlights

Comparative analysis of obtained results demonstrates that cone-beam computed tomography (CBCT) showed 54% (n = 27) more cystic masses of the jaws than panoramic radiography could
CBCT showed the following pathologies: granulomas smaller than 4 mm diameter – 85% (n = 23), 83% (n = 23) of said granulomas were found on maxilla, radicular cysts of maxilla – 11% (n = 3), incisive canal cyst – 4% (n = 1)
Panoramic tomography analysis misdiagnosed 5 granulomas (80% (n = 4) on mandibular premolar and molar areas) that were not found during CBCT analysis

Summary

Секция работ молодых ученых

Роль конусно-лучевой компьютерной томографии в диагностике кистовидных образований челюстей. – доцент кафедры лучевой диагностики ФГБОУ ВО “Московский государственный медико-стоматологический университет им. The Role of Cone-Beam Computed Tomography in Diagnostics of Cystic Masses of the Jaw. A.I. Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia Scientific advisor: Petrovskaya V.V. Цель исследования: определить возможности применения конусно-лучевой компьютерной томографии в диагностике кистовидных образований челюстей. При сравнительном анализе результатов было выявлено, что конусно-лучевая компьютерная томография позволила обнаружить на 54% (n = 27) больше кистовидных образований челюстей, чем ортопантомография. Низкая лучевая нагрузка и высокая информативность конусно-лучевой компьютерной томографии позволяют использовать ее вместо внутриротовой рентгенографии, ортопантомографии и МСКТ в качестве скринингового метода в диагностике различных патологий зубочелюстной системы, в том числе кистовидных образований челюстей. The study aimed to evaluate cone-beam computed tomography (CBCT) capabilities in diagnostics of cystic masses of the jaw

Methods

Results

Conclusion

Материал и методы

Список литературы