Clinical Validity of the Interactive and Low-Dose Three-Dimensional Dento-Alveolar Imaging System, Tuned-Aperture Computed Tomography

Yuki, Hideaki; Yamamoto, Kazuhide; Kousuge, Yuji; Kobayashi, Norio; Wakoh, Mamoru; Sekiguchi, Hiroshi; Yakushiji, Masashi; Farman, Allan G.

doi:10.2209/tdcpublication.44.159

Cited by 4 publications

(5 citation statements)

References 46 publications

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“…Several studies have applied digital tomosynthesis to dentistry [25][26][27][28][29][30][31][32], but it has not been widely applied to clinical use due to the limits of the technology at this time. Our team proposed the 2.5D Periapical Radiography System in 2018 [8] and developed a high-frame-rate sensor.…”

Section: Discussionmentioning

confidence: 99%

Geometrical Calibration of a 2.5D Periapical Radiography System

et al. 2020

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The objective of this study was to develop a geometrical calibration method applicable to the 2.5D prototype Periapical Radiography System and estimate component position errors. A two-steel-ball phantom with a precisely known position was placed in front of a digital X-ray sensor for two-stage calibration. In the first stage, the following three parameters were estimated: (1) r, the distance between the focal spot and the rotation axis of the X-ray tube; (2) ψ, the included angle between the straight line formed by the X-ray tube’s focal spot and rotation axis and the straight line of the orthogonal sensor; and (3) L4, the distance between the rotation axis and the plane where the two steel balls were positioned. In the second stage, the steel balls’ positions were determined to calculate the positions of the X-ray tube on the x, y, and z axes. Computer simulation was used to verify the accuracy of the calibration method. The results indicate that for the calibration approach proposed in this study, the differences between the estimated errors and setting errors were smaller than 0.15% in the first and second stages, which is highly accurate, verifying its applicability to accurate calibration of the 2.5D Periapical Radiography System.

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Section: Discussionmentioning

confidence: 99%

Geometrical Calibration of a 2.5D Periapical Radiography System

et al. 2020

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“…Our research on TACT imaging [3][4][5] is the second in vivo study. The first such study was reported by the inventor, R.L.…”

Section: Discussionmentioning

confidence: 99%

“…His group concluded that TACT displays were more diagnostically informative and had more impact on potential treatment options than did conventional radiographs. Some in vitro studies indicated that TACT is sensitive or compatible in comparison with conventional dento-alveolar radiography examinations to detect dental caries, periodontal bone dynamics and other diagnostic tasks [4,5].…”

Section: Discussionmentioning

confidence: 99%

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Three-dimensional tomo-synthesis/reconstruction methods and stereographic viewing display applied for dento-alveolar imaging

Yuki

Kobayashi

Sano

et al. 2005

International Congress Series

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“…Bu sorun, cihazın kullanımını komplike hale getirdiği gibi, elde edilecek 3 boyutlu görüntünün kalitesini de bozmaktadır. 22 Hata! Başvuru kaynağı bulunamadı.…”

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IMAGING SYSTEMS USED FOR DIAGNOSIS OF PERIODONTAL PATHOLOGY Part 2: Alternative Imaging Systems and Image Processing Methods

Soğur¹,

Baksı²

2014

EÜ Dişhek Fak Derg

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ÖzetRadyografiler, periodontal hastalıkların tanı ve tedavisinde kullanılan en önemli gereçlerdir. Periodontal dokuların değerlendirilmesinde rutinde kullanılan iki boyutlu görüntüleme sistemleri, alveoler kemikte ortaya çıkan erken dönem değişikliklerin saptanmasında yetersiz kalmaktadır. Her ne kadar, üç boyutlu görüntü oluşturan Bilgisayarlı Tomografi (BT) ve Konik Işınlı Bilgisayarlı Tomografi (CBCT) gibi görüntüleme sistemleri kemik defektlerinin 3 boyutlu olarak değerlendirme imkanını bize sunsa da, maliyetlerinin yüksek olması ve hastaya ulaşan radyasyon dozunun konvansiyonel filmlere oranla daha yüksek olması gibi önemli dezavantajları vardır. Tuned aperture computed tomography (TACT) görüntüleme sistemi ya da Optik Coherence Tomografi (OCT) gibi alternatif görüntüleme sistemlerinin periodontitise bağlı olarak kemikte meydana gelen değişikliklerin saptanmasına yönelik yapılan çalışmalar umut vaad etmektedir. Bunun yanı sıra, kemikte meydana gelen değişikliklerin saptanması aşamasında görüntü analiz yöntemlernn kullanımı, minör seviyedeki oluşan densite değişikliklerin bile kalitatif ve kantitatif olarak gözlemleyebilmemizi kolaylaştırmaktadır. Bu derlemenin amacı; periodontitise bağlı olarak alveoler kemikte meydana gelen değişikliklerin erken dönemde saptanmasında kullanılan alternatif görüntüleme ve analiz yöntemlerini değerlendirmektir.Anahtar Kelimeler: Dijital radyografi, dental, görüntü analiz yöntemleri, periodontoloji Abstract Radiographs are the most accurate diagnostic aid available in the diagnosis and treatment of periodontal disease. 2 dimensional (2-D) systems imaging systems used routinely in periodontology are not effective to detect the early bone changes according to the periodontal disease. Even though 3-D systems available such as Computed Tomography (CT) and Cone Beam Computed Tomography (CBCT ) has become a valuable imaging modality in periodontology to determine a three-dimensional (3D) architecture of osseous defects

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Clinical Validity of the Interactive and Low-Dose Three-Dimensional Dento-Alveolar Imaging System, Tuned-Aperture Computed Tomography

Cited by 4 publications

References 46 publications

Geometrical Calibration of a 2.5D Periapical Radiography System

Geometrical Calibration of a 2.5D Periapical Radiography System

Three-dimensional tomo-synthesis/reconstruction methods and stereographic viewing display applied for dento-alveolar imaging

IMAGING SYSTEMS USED FOR DIAGNOSIS OF PERIODONTAL PATHOLOGY Part 2: Alternative Imaging Systems and Image Processing Methods

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