scholarly journals Computer Science Tools for Manual Editing of Computed Tomographic Images: Impact on the Quality of 3D Printed Models

2014 ◽  
Vol 05 (10) ◽  
pp. 439-443 ◽  
Author(s):  
Jean H. D. Fasel ◽  
Jörg Beinemann ◽  
Karl Schaller ◽  
Heinz-Otto Peitgen
Keyword(s):  
Computer Science ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
3D Printed

scholarly journals Polymorbidity and heterogeneity of intact bone tissue in patients with malignant and metastatic bone tumors

2019 ◽  
pp. 33-37 ◽  
Author(s):  
Nikolay Ternovoy ◽  
Oleg Drobotun ◽  
Nikolay Kolotilov
Keyword(s):  
Bone Tumors ◽  
Malignant Tumors ◽  
Benign Tumors ◽  
Control Group ◽  
Malignant Bone Tumors ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Treatment Side Effects ◽  
Intact Bone

Polymorbidity is the presence of several synchronically occurring diseases (genetically or pathogenetically related or unrelated) in one person at different stages and phases of their development, is accompanied by higher mortality rates, higher disability rates, treatment side effects, increased consumption of the patient’s body resources, lower quality of life. The purpose of the article is to demonstrate the association of polymorbidity and intact bone tissues’ heterogeneity in patients with malignant and metastatic bone tumors. Material and methods. 16 patients with benign bone tumors, 25 – with primary malignant bone tumors and 22 – with metastatic bone tumors were investigated with multispiral tomography scanner: 33 (52.4 %) men and 30 (47.6 %) women aged 25 to 75 years. The control group consisted of 37 patients with suspected tumor lesions of the bones, but the diagnosis was not confirmed. To assess polymorbidity in patients, the CIRS-G system was applied. Conclusion. An increase in polymorbidity level is associated with a decrease in RGD and an increase in the texture heterogeneity of computed tomographic images of the spongy and compact bones (the pattern is reliable, P <0.01) in the series: practically healthy individuals, patients with benign tumors, patients with malignant tumors, patients with metastatic tumors.

scholarly journals Helical computed tomographic-dacryocystography in adult pet dwarf rabbits: procedure and normal appearance

2020 ◽  
Vol 89 (6) ◽  
pp. 299-308
Author(s):  
J. Fritz ◽  
H. Gaillot ◽  
Y. Ruel
Keyword(s):  
Minimally Invasive ◽  
Prospective Study ◽  
Drainage System ◽  
Efficient Technique ◽  
Normal Appearance ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Clinical Concern ◽  
Diagnostic Usefulness

Partial or complete nasolacrimal drainage system (NLDS) occlusion is a common clinical concern in rabbits. It can be assumed that computed tomographic-dacryocystography (CTDCG) might be an efficient technique in this indication. In this prospective study, the technique of CT-DCG and the appearance of the NLDS in eight healthy rabbits on CT-DCG images are described. The quality of visualization of bony structures adjacent to the NLDS was good on pre-contrast computed tomographic images. The bony lacrimal canal had a smooth contour, a regular diameter, and its mean dimensions are provided. CT-DCG technique was easy to perform and offered a good visualization of the NLDS including anatomical narrowings and bendings. CT-DCG is a minimally invasive and informative technique for evaluating the NLDS in rabbits. Its diagnostic usefulness in exploring nasolacrimal diseases remains to be specified in this species.

Problems of Distance Education

2018 ◽  
Vol 7 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Rostislav Fojtík
Keyword(s):  
Distance Education ◽  
Distance Learning ◽  
Computer Science ◽  
Full Time ◽  
Advantages And Disadvantages ◽  
E Learning ◽  
Educational Requirements

Abstract Distance learning and e-learning have significantly developed in recent years. It is also due to changing educational requirements, especially for adults. The article aims to show the advantages and disadvantages of distance learning. Examples of the 20-year use of the distance learning form of computer science describe the difficulties associated with the implementation and implementation of this form of teaching. The results of students in the full-time and distance form of teaching in the bachelor’s study of computer science are compared. Long-term findings show that distant students have significantly lower scores in the first years of study than full-time bachelor students. In the following years of study, the differences diminish, and students’ results are comparable. The article describes the possibilities of improving the quality of distance learning.

Biomimetic Design of 3D Printed Tissue-engineered bone Constructs

2020 ◽  
Vol 16 ◽  
Author(s):  
Wei Liu ◽  
Shifeng Liu ◽  
Yunzhe Li ◽  
Peng Zhou ◽  
Qian ma
Keyword(s):  
Tissue Engineering ◽  
3D Printing ◽  
Advanced Materials ◽  
Bionic Design ◽  
Material Interfaces ◽  
Precise Control ◽  
Cell Printing ◽  
Biomimetic Scaffolds ◽  
3D Printed

Abstract:: Surgery to repair damaged tissue, which is caused by disease or trauma, is being carried out all the time, and a desirable treatment is compelling need to regenerate damaged tissues to further improve the quality of human health. Therefore, more and more research focus on exploring the most suitable bionic design to enrich available treatment methods. 3D-printing, as an advanced materials processing approach, holds promising potential to create prototypes with complex constructs that could reproduce primitive tissues and organs as much as possible or provide appropriate cell-material interfaces. In a sense, 3D printing promises to bridge between tissue engineering and bionic design, which can provide an unprecedented personalized recapitulation with biomimetic function under the precise control of the composition and spatial distribution of cells and biomaterials. This article describes recent progress in 3D bionic design and the potential application prospect of 3D printing regenerative medicine including 3D printing biomimetic scaffolds and 3D cell printing in tissue engineering.

scholarly journals Quality of life of patients with 3D-printed arm prostheses in a rural area of Sierra Leone

Heliyon ◽  
2021 ◽  
pp. e07447
Author(s):  
A.J. Sterkenburg ◽  
M. Van der Stelt ◽  
A.R. Koroma ◽  
M.D. Van Gaalen ◽  
M.J. Van der Pols ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Sierra Leone ◽  
Rural Area ◽  
3D Printed

scholarly journals Microsurgical Anatomy of the Anterior Circulation of the Brain Adjusted to the Neurosurgeon’s Daily Practice

2021 ◽  
Vol 11 (4) ◽  
pp. 519
Author(s):  
Tomas Poblete ◽  
Daniel Casanova ◽  
Miguel Soto ◽  
Alvaro Campero ◽  
Jorge Mura
Keyword(s):  
Daily Practice ◽  
Computed Tomographic Angiography ◽  
Poor Quality ◽  
Surgical Anatomy ◽  
Microsurgical Anatomy ◽  
Anterior Circulation ◽  
Computed Tomographic ◽  
Intrinsic Complexity ◽  
Tomographic Angiography

The study of cerebrovascular anatomy can be difficult and may take time due to its intrinsic complexity. However, it can also be difficult for the following reasons: the excessive description of neuroanatomy making articles hard to read, the unclear clinical application of what is written, the use of simplified or intricate schematic drawings that are not always appropriate for effective teaching, the poor quality of neuroanatomy dissections and the use of unusual views of figures that are not strictly related to the most frequent neuroimages to be interpreted in daily practice. Because of this, we designed an article that incorporates original and accurate anatomical dissections in an attempt to improve its comprehensibility. Five formalin-fixed adult cadaveric heads, whose vessels were injected with a colored silicone mixture (red for arteries and blue for veins), were dissected and examined under a microscope with magnifications from 3× to 40×. Special emphasis has been placed on correlating topographic anatomy with routine neuroimaging studies from computed tomographic angiography (CTA) and digital subtraction angiography (DSA). The essential surgical anatomy in a neurosurgeon’s daily practice is also described. The cadaveric dissections included in this study contribute to the understanding of the cerebrovascular anatomy necessary for the neurosurgeon’s daily practice.

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