Dreidimensionale Darstellungsmöglichkeiten des Mittelgesichts mithilfe der digitalen Volumentomographie anhand einer Kadaverstudie zur winkelstabilen Osteosynthese

Flinzberg, S.; Schmelzle, R.; Schulze, Dirk; Rother, U; Heiland, Max

doi:10.1007/s10006-003-0494-8

Cited by 15 publications

(4 citation statements)

References 11 publications

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“…Die DVT findet ihre Anwendung vor allem im Hochkontrast, d. h. sie eignet sich besonders zur Darstellung von Hartgewebsstrukturen wie Knochen oder Zähnen [3,5]. Mozzo et al [28] stellten ein gering erhöhtes Bildrauschen im DVT gegenüber dem CT fest und leiteten davon die geringere Auflösung des DVT im Niedrigkontrast ab.…”

Section: Bildqualitätunclassified

“…Sie konnten jedoch keine Angaben darüber machen, inwieweit dieser Verlust in der Auflösung die zahnärztliche Diagnostik einschränkt. Strukturen können nach Flinzberg et al [5] beim and their protocols of radiation dose differed significantly. Therefore, investigations concerning measurements of radiation exposure can only be compared with each other when all parameters coincide [30].…”

Section: Bildqualitätunclassified

“…DVT is applied in high-contrast particularly; it is appropriate for the visualization of bony structures and teeth [3,5]. Mozzo et al [28] detected that image noise was slightly higher in DVT than in CT, and therefore concluded that the low-contrast resolution was lower.…”

Section: Image Qualitymentioning

confidence: 99%

“…In contrast, Ludlow et al [23] noted greater image noise and concurrent lower resolution in DVT, but they could not determine the consequences of this fact for diagnostic purposes in dentistry. Based on studies of Flinzberg et al [5], DVT can also visualize structures in the immediate vicinity of metal materials such as plates for osteosynthesis.…”

Section: Image Qualitymentioning

confidence: 99%

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Indications for Digital Volume Tomography in Orthodontics

Müssig¹,

Wörtche²,

Lux³

2005

J Orofac Orthop

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Disturbances in tooth eruption and tooth impactions make great demands on radiographic diagnostics. There is often need for radiographic images in various projections to assess the exact position of unerupted and impacted teeth. Digital volume tomography (DVT) is a method for localizing hard tissue structures such as bone and teeth on various planes. Moreover, it makes a three-dimensional image of the teeth, jaws and the viscerocranium possible. From an orthodontic point of view, digital volume tomography is indicated to detect impacted and ectopic teeth and to demonstrate the amount of bone available for orthodontic tooth movement. In patients with cleft lip and palate, DVT can be used to visualize the size of the alveolar cleft and to evaluate the position and development of multiple teeth, as these patients often suffer from disturbances in tooth eruption.

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Section: Bildqualitätunclassified

Section: Image Qualitymentioning

confidence: 99%

Section: Image Qualitymentioning

confidence: 99%

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Indications for Digital Volume Tomography in Orthodontics

Müssig¹,

Wörtche²,

Lux³

2005

J Orofac Orthop

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Imaging of ancient Egyptian mummies’ temporal bones with digital volume tomography

Dalchow

Schmidt

Harbort

et al. 2012

Eur Arch Otorhinolaryngol

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The radiographic imaging of ancient Egyptian mummies has always been of great interest. Computed tomography is the method of choice to demonstrate bony pathologies with high quality. As digital volume tomography (DVT) is an extension of panoramic tomography with a very high resolution, its qualities were evaluated by examination of temporal bones of Egyptian mummy skulls. Ten Egyptian mummy skulls from the Zoological Collection Marburg, estimated 1,700-5,000 years of age, from Abydos, Philae, Theben-West and Sakkarah, were examined by DVT (3D Accuitomo, Morita, Japan). Through a rotation 360° of the X-ray source around the region of interest, a cylinder of 3 × 4 cm was captured as a three-dimensional volume. The gained data were analyzed with the help of special software on a PC. The angles of the axial, coronal and sagittal sections were arbitrarily changed to represent single structures with high resolution of 0.125 mm to analyze specific anatomical structures. In all skulls, conditions of the temporal bone and its anatomical structures were evaluated and normal as well as pathological findings evaluated in detail. The analysis of special landmarks such as the ossicular chain, cochlea, external, and internal auditory canal, facial nerve canal, and semicircular canals showed an intact ossicular chain in six temporal bones, while only isolated and dislocated ossicles were found in eight temporal bones. Besides one dehiscence of the superior semicircular canal in one temporal bone which might have led to vertigo and deafness at lifetime, all other findings were normal. Fragments of foreign bodies additionally found in the labyrinth, external ear canal and intracranially were attributed to postmortem damage. Digital volume tomography extends the imaging possibilities of CT for paleoradiological evaluation of temporal bones. With its high resolution, geometric accuracy, reconstruction capabilities, rapidness, and comparably low costs, even small bony pathologies are precisely demonstrated in a limited area. Investigations of larger numbers of specimen might reveal further details of ancient history for further interdisciplinary investigation of anthropologists, Egyptiologists, otolaryngologists, and radiologists.

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Measurement and comparison of labyrinthine structures with the digital volume tomography: ancient Egyptian mummies’ versus today’s temporal bones

Schmidt¹,

Harbort

Knecht

et al. 2012

Eur Arch Otorhinolaryngol

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The objective of this study was to investigate whether the labyrinthine structures of ancient Egyptian mummies differ significantly from modern labyrinths. The new technique of digital volume tomography (DVT) was used to visualize the temporal bones. To obtain standardized images and measurements, precise instructions regarding volume rotation, slicing and measurements' positioning were determined. Twenty-five dimensions were obtained. The groups were compared statistically. No significant differences could be found except one cochlear diameter which proved to be significantly larger in the control group. DVT is applicable for imaging of temporal bones. Measurements might help to increase understanding of the temporal bone's structure, to aid the diagnostics of pathologies as well as to supplement the planning of surgical procedures.

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Dreidimensionale Darstellungsmöglichkeiten des Mittelgesichts mithilfe der digitalen Volumentomographie anhand einer Kadaverstudie zur winkelstabilen Osteosynthese

Abstract: Surgical treatment of midfacial fractures using a multidirectional angularly stable interlocking plate system seems promising. The NewTom DVT 9000 proved to be suitable to visualize even fine osseous structures of the midface.

Cited by 15 publications

References 11 publications

Indications for Digital Volume Tomography in Orthodontics

Indications for Digital Volume Tomography in Orthodontics

Imaging of ancient Egyptian mummies’ temporal bones with digital volume tomography

Measurement and comparison of labyrinthine structures with the digital volume tomography: ancient Egyptian mummies’ versus today’s temporal bones

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