Umwandlung dreidimensionaler Cone-Beam CT-Daten in rekonstruierte Fernröntgenseitenaufnahmen

Zusammenfassung

In der vorliegenden Studie wurde verglichen, wie genau Referenzpunkte und Messwerte auf einer aus Cone Beam computertomografischen Daten (MercuRay™, Hitachi Medical, Tokyo, Japan) rekonstruierten Fernröntgenaufnahme gegenüber einer traditionellen zweidimensionalen Fernröntgenaufnahme identifiziert und erhoben werden können. Dazu wurden insgesamt 20 Patienten der UCSF Orthodontic Clinic ausgewählt, bei denen beide Aufnahmen angefertigt worden waren. Beide Arten von Aufnahmen wurden von insgesamt fünfzehn niedergelassenen Kieferorthopäden mithilfe der Dolphin Imaging Software Version 10 (Dolphin Imaging, Chatsworth, CA) ausgewertet. Zwischen den Cone Beam-Aufnahmen und den traditionellen Fernröntgenaufnahmen konnten keine statistisch oder klinisch signifikanten Unterschiede festgestellt werden. Unsere Ergebnisse ließen keinen Unterschied in der Präzision bei der Bestimmung der Bezugspunkte und der durchgeführten Messungen zwischen den beiden Aufnahmeverfahren erkennen.

Abstract

The purpose of this study was to compare how landmarks and measurements could be identified when using a lateral cephalometric image generated from cone beam tomographic system (CBCT, MercuRay™, Hitachi Medical, Tokyo, Japan) versus the traditional two-dimensional cephalometric radiograph. 20 patients, who were seen in the UCSF Orthodontic Clinic and had both types of radiographic analysis, were used. The Dolphin Imaging Software Version 10 (Dolphin Imaging, Chatsworth, CA), was used by fifteen orthodontic residents on both image types. No statistically or clinically significant differences were observed in the resulting measurements between cephalometric images acquired from CBCT datasets and conventional cephalometric radiographs. These results do not show any differences in the precision of standard landmark selection or the resulting measurements between cephalometric images obtained from CBCT scans and traditional lateral cephalometric radiographs.

Schlüsselwörter

Kephalometrie - Cone Beam Computertomografie - CBCT

Key words

cephalometrics - cone beam computed tomography - CBCT

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