scholarly journals Repeated irradiation from micro-computed tomography scanning at 2, 4 and 6 months of age does not induce damage to tibial bone microstructure in male and female CD-1 mice

2017 ◽  
Vol 6 ◽  
pp. 855 ◽  
Author(s):  
Sandra M Sacco ◽  
Caitlin Saint ◽  
Amanda B Longo ◽  
Charles B Wakefield ◽  
Phil L Salmon ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Microstructure ◽  
Micro Computed Tomography ◽  
Male And Female ◽  
Tibial Bone ◽  
Computed Tomography Scanning ◽  
Tomography Scanning

scholarly journals Beam hardening artifacts in micro-computed tomography scanning can be reduced by X-ray beam filtration and the resulting images can be used to accurately measure BMD

Bone ◽  
2009 ◽  
Vol 45 (6) ◽  
pp. 1104-1116 ◽  
Author(s):  
Jeffrey A. Meganck ◽  
Kenneth M. Kozloff ◽  
Michael M. Thornton ◽  
Stephen M. Broski ◽  
Steven A. Goldstein
Keyword(s):  
Computed Tomography ◽  
Micro Computed Tomography ◽  
Beam Hardening ◽  
X Ray ◽  
Computed Tomography Scanning ◽  
Tomography Scanning

scholarly journals The first mainland European Mesozoic click-beetle (Coleoptera: Elateridae) revealed by X-ray micro-computed tomography scanning of an Upper Cretaceous amber from Hungary

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Márton Szabó ◽  
Robin Kundrata ◽  
Johana Hoffmannova ◽  
Tamás Németh ◽  
Emese Bodor ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Upper Cretaceous ◽  
Micro Computed Tomography ◽  
Click Beetles ◽  
X Ray ◽  
The Past ◽  
Click Beetle ◽  
Computed Tomography Scanning ◽  
Source Of Information ◽  
Tomography Scanning

AbstractFossil bioinclusions in amber are invaluable source of information on the past evolution and diversity of various organisms, as well as on the paleoecosystems in general. The click-beetles, Elateridae, which originated and greatly diversified during the Mesozoic, are mostly known from the adpression-like fossils, and their diversity in the Cretaceous ambers is only poorly documented. In this study, we describe a new click-beetle based on an incomplete inclusion in ajkaite, an Upper Cretaceous (Santonian) amber from the Ajka Coal Formation from Hungary. We used X-ray micro-computed tomography scanning to reconstruct its morphology because it is deposited in an opaque piece of amber. Our results suggest that the newly described Ajkaelater merkli gen. et sp. nov. belongs to subfamily Elaterinae. It represents the first Mesozoic beetle reported from Hungary, and the first Mesozoic Elateridae formally described from mainland Europe. Our discovery supports an Eurasian distribution and diversification of Elaterinae already in the Cretaceous. The paleoenvironment of the Ajka Coal Formation agrees well with the presumed habitat preference of the new fossil taxon. The discovery of a presumably saproxylic click-beetle shed further light on the yet poorly known paleoecosystem of the Santonian present-day western Hungary.

scholarly journals Development of a micro-CT mouse holder for a femur defect mouse model

2020 ◽  
Author(s):  
Graeme R. Paul ◽  
Peter Schwilch ◽  
Esther Wehrle ◽  
Gisela A. Kuhn ◽  
Ralph Müller
Keyword(s):  
Computed Tomography ◽  
Mouse Model ◽  
Femur Fracture ◽  
Use Cases ◽  
Rigid Fixation ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Defect Healing ◽  
Computed Tomography Scanning ◽  
Tomography Scanning

AbstractCorrect fixation of an object is essential for accurate micro computed tomography scanning. In this document, we provide a motivation for, description of, and use cases for a mouse holder appropriate for holding an externally fixated mouse in femur fracture/defect healing experiments. In addition to rigid fixation, the holder provides heating and anaesthetic gas to ensure correct anaesthetic conditions for the animal. We provide the description and design files for a Scanco viva40 scanner, but with small changes, the holder can be used with other scanners.

Three-dimensional model of an ancient Egyptian falcon mummy skeleton

2015 ◽  
Vol 21 (4) ◽  
pp. 368-372 ◽  
Author(s):  
Anton Du Plessis ◽  
Ruhan Slabbert ◽  
Liani Colette Swanepoel ◽  
Johan Els ◽  
Gerrie J Booysen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
3D Printing ◽  
Three Dimensional ◽  
Micro Computed Tomography ◽  
Three Dimensional Model ◽  
Content Type ◽  
3D Print ◽  
Ancient Egyptian ◽  
Computed Tomography Scanning ◽  
Tomography Scanning

Purpose – The purpose of this paper is to present the first detailed three-dimensional (3D) print from micro-computed tomography data of the skeleton of an ancient Egyptian falcon mummy. Design/methodology/approach – Radiographic analysis of an ancient Egyptian falcon mummy housed at Iziko Museums of South Africa was performed using non-destructive x-ray micro-computed tomography. A 1:1 physical replica of its skeleton was printed in a polymer material (polyamide) using 3D printing technology. Findings – The combination of high-resolution computed tomography scanning and rapid prototyping allowed us to create an accurate 1:1 model of a biological object hidden by wrappings. This model can be used to study skeletal features and morphology and also enhance exhibitions hosted within the museum. Originality/value – This is the first replica of its kind made of an ancient Egyptian falcon mummy skeleton. The combination of computed tomography scanning and 3D printing has the potential to facilitate scientific research and stimulate public interest in Egyptology.

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