Relative en- and exophthalmometry in zygomatic fractures comparing optical non-contact, non-ionizing 3D imaging to the Hertel instrument and computed tomography

2003 ◽  
Vol 31 (6) ◽  
pp. 362-368 ◽  
Author(s):  
Emeka Nkenke ◽  
Michaela Benz ◽  
Tobias Maier ◽  
Jörg Wiltfang ◽  
Leonard M Holbach ◽  
...  
Keyword(s):  
Computed Tomography ◽  
3D Imaging ◽  
Zygomatic Fractures

MicroCT protocols for scanning of embryos and juvenile Hexaplex trunculus v1

2021 ◽  
Author(s):  
Eva Chatzinikolaou ◽  
Kleoniki Keklikoglou
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
3D Imaging ◽  
Imaging Technique ◽  
Ct Scanning ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Gastropod Species ◽  
Biological Studies ◽  
Hexaplex Trunculus

Micro-computed tomography (micro-CT) is a high-resolution 3D-imaging technique which is now increasingly applied in biological studies focusing on taxonomy and functional morphology. The creation of virtual representations of specimens can increase availability of otherwise underexploited and inaccessible samples. This protocol aims to standardise micro-CT scanning procedures for embryos and juveniles of the marine gastropod species Hexaplex trunculus.

scholarly journals 3D Imaging of Lithium Protrusions in Solid‐State Lithium Batteries using X‐Ray Computed Tomography

2020 ◽  
pp. 2007564
Author(s):  
Shuai Hao ◽  
Josh J. Bailey ◽  
Francesco Iacoviello ◽  
Junfu Bu ◽  
Patrick S. Grant ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Solid State ◽  
Lithium Batteries ◽  
3D Imaging ◽  
X Ray ◽  
X Ray Computed

scholarly journals 3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography

10.3791/60251 ◽  
2019 ◽  
Author(s):  
Madleen Busse ◽  
Mark Müller ◽  
Melanie A. Kimm ◽  
Simone Ferstl ◽  
Sebastian Allner ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Soft Tissue ◽  
3D Imaging ◽  
Staining Method ◽  
Specific Staining ◽  
Tissue Samples ◽  
X Ray

scholarly journals Is acetabular dysplasia and pelvic deformity properly interpreted in patients with congenital femoral deficiency? A 3D analysis of pelvic computed tomography

2020 ◽  
Vol 14 (5) ◽  
pp. 364-371
Author(s):  
Bartosz Jan Musielak ◽  
Milud Shadi ◽  
Anna Maria Kubicka ◽  
Paweł Koczewski ◽  
Michał Rychlik ◽  
...  
Keyword(s):  
Computed Tomography ◽  
3D Imaging ◽  
Acetabular Dysplasia ◽  
Limb Lengthening ◽  
Pelvic Osteotomy ◽  
Directional Asymmetry ◽  
3D Analysis ◽  
Acetabular Orientation ◽  
Bivariate Correlation ◽  
Affected Side

Purpose The aim of this study is to assess the pelvis’s morphology and spatial orientation of the acetabulum, and their relation to the severity of Congenital Femoral Deficiency (CFD) using 3D imaging. Defining these pathologies is crucial for adequate surgical correction. Methods The shape and structure of the acetabulum and pelvis were evaluated in 14 children with unilateral CFD via 3D computed tomography (CT) scans, and then analysed with geometric morphometrics (Procrustes ANOVA). The association between pelvic directional asymmetry and CFD classifications (Aitken, Paley) was assessed. The affected acetabulum’s orientation was compared to the non-affected side, and the variability of orientation in different CFD types was evaluated (bivariate correlation). Results The hemipelvis with CFD is characterized by a smaller acetabulum, a laterally curved ischium and a less upright ilium (p < 0.001). Multivariate regressions revealed a greater level of pelvis asymmetry in more severe types of CFD (p < 0.001). The acetabulum orientation assessment showed a significant decrease in mean anteversion (1.3°) and inclination (9.6°) angle, when compared to the non-affected side (26°and 17.1° respectively; p < 0.001). Conclusions The affected side of the pelvis is considerably smaller and more deformed, and this should be considered during limb lengthening. The acetabulum presents with significant dysplasia due to its severe retroversion and steepness (superoposterior distortion). This should not be interpreted as a simple wall deficit, but as a complete acetabular misalignment (often misinterpreted in 2D imagery). Using transiliac osteotomies (e.g. Dega, Salter) is debatable due to abnormal acetabular orientation (superoposterior malalignment). Therefore, alternative options, e.g. San Diego or triple pelvic osteotomy, should be considered.

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