Augmented reality in vascular and endovascular surgery: a scoping review (Preprint)

2021 ◽  
Author(s):  
Joshua Eves ◽  
Abhilash Sudarsanam ◽  
Joseph Shalhoub ◽  
Dimitri Amiras
Keyword(s):  
Augmented Reality ◽  
Vascular Surgery ◽  
Vascular Anatomy ◽  
Fusion Imaging ◽  
Endovascular Surgery ◽  
Regular Feature ◽  
Vascular Intervention ◽  
Ct Angiogram ◽  
Technological Advances ◽  
Wide Range

BACKGROUND Technological advances have transformed vascular intervention over recent decades. Augmented reality (AR) is a subject of growing interest within surgery, with potential to improve the clinicians’ understanding of 3D anatomy and their processing of real-time information. The aim of this review was to summarise the fundamental concepts of these technologies and to systematically assess the literature currently applying AR to vascular surgery. METHODS A systematic literature review of ‘Medline,’ ‘Scopus’ and ‘Embase’ was performed according to PRISMA guidelines. Studies were selected by a blinded process between two investigators and assessed with data quality tools. RESULTS AR technologies have had a number of applications across vascular and endovascular surgery. The majority of studies use 3D imaging (e.g) CT angiogram derived images of vascular anatomy to augment the clinicians anatomical understanding during procedures. A wide range of AR technologies have been employed with ‘heads up’ fusion imaging and AR head-mounted displays the most commonly clinically applied. AR applications have included guiding open, robotic and endovascular surgery while minimising dissection, improving procedural times and reducing radiation and contrast exposure. Additionally, AR has been successfully applied to surgical training, with scope to improve technical and team communication skills. CONCLUSIONS AR has shown promising developments in the field of vascular and endovascular surgery, with potential benefits to surgeons and patients alike. These include reductions in patient risk and operating times while optimising contrast and radiation exposure for radiological interventions. While more technological advances are required to overcome current limitations, it is likely that AR will be a regular feature of vascular surgery clinical practice and training in the future. CLINICALTRIAL Not suitable for PROSPERO registration due to scoping nature of review, without specific intervention or population study.

scholarly journals Re-interpreting mesenteric vascular anatomy on 3D virtual and/or physical models: positioning the middle colic artery bifurcation and its relevance to surgeons operating colon cancer

2021 ◽  
Author(s):  
Bjarte T. Andersen ◽  
Bojan V. Stimec ◽  
Bjørn Edwin ◽  
Airazat M. Kazaryan ◽  
Przemyslaw J. Maziarz ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Splenic Vein ◽  
Vascular Anatomy ◽  
Middle Colic Artery ◽  
Inferior Mesenteric Vein ◽  
Anatomical Landmarks ◽  
Colic Artery ◽  
Mesenteric Vein ◽  
Wide Range ◽  
The Impact

Abstract Background The impact of the position of the middle colic artery (MCA) bifurcation and the trajectory of the accessory MCA (aMCA) on adequate lymphadenectomy when operating colon cancer have as of yet not been described and/or analysed in the literature. The aim of this study was to determine the MCA bifurcation position to anatomical landmarks and to assess the trajectory of aMCA. Methods The colonic vascular anatomy was manually reconstructed in 3D from high-resolution CT datasets using Osirix MD and 3-matic Medical and analysed. CT datasets were exported as STL files and supplemented with 3D printed models when required. Results Thirty-two datasets were analysed. The MCA bifurcation was left to the superior mesenteric vein (SMV) in 4 (12.1%), in front of SMV in 17 (53.1%) and right to SMV in 11 (34.4%) models. Median distances from the MCA origin to bifurcation were 3.21 (1.18–15.60) cm. A longer MCA bifurcated over or right to SMV, while a shorter bifurcated left to SMV (r = 0.457, p = 0.009). The main MCA direction was towards right in 19 (59.4%) models. When initial directions included left, the bifurcation occurred left to or anterior to SMV in all models. When the initial directions included right, the bifurcation occurred anterior or right to SMV in all models. The aMCA was found in 10 (31.3%) models, following the inferior mesenteric vein (IMV) in 5 near the lower pancreatic border. The IMV confluence was into SMV in 18 (56.3%), splenic vein in 11 (34.4%) and jejunal vein in 3 (9.4%) models. Conclusion Awareness of the wide range of MCA bifurcation positions reported is crucial for the quality of lymphadenectomy performed. The aMCA occurs in 31.3% models and its trajectory is in proximity to the lower pancreatic border in one half of models, indicating that it needs to be considered when operating splenic flexure cancer.

scholarly journals Integration of image segmentation and fuzzy theory to improve the accuracy of damage detection areas in traffic accidents

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Majid Amirfakhrian ◽  
Mahboub Parhizkar
Keyword(s):  
Machine Learning ◽  
Image Processing ◽  
Machine Vision ◽  
Traffic Accidents ◽  
Fuzzy Theory ◽  
Machine Learning Techniques ◽  
Industrial Setting ◽  
Technological Advances ◽  
Learning Techniques ◽  
Wide Range

AbstractIn the next decade, machine vision technology will have an enormous impact on industrial works because of the latest technological advances in this field. These advances are so significant that the use of this technology is now essential. Machine vision is the process of using a wide range of technologies and methods in providing automated inspections in an industrial setting based on imaging, process control, and robot guidance. One of the applications of machine vision is to diagnose traffic accidents. Moreover, car vision is utilized for detecting the amount of damage to vehicles during traffic accidents. In this article, using image processing and machine learning techniques, a new method is presented to improve the accuracy of detecting damaged areas in traffic accidents. Evaluating the proposed method and comparing it with previous works showed that the proposed method is more accurate in identifying damaged areas and it has a shorter execution time.

scholarly journals MENINGKATKAN HASIL BELAJAR SISWA KELAS IV DI SDN BABAKAN TAROGONG 5 BANDUNG PADA PEMBELAJARAN IPS MELALUI STRATEGI PEMBELAJARAN PEMECAHAN MASALAH

2017 ◽  
Vol 25 (2) ◽  
pp. 207
Author(s):  
Eros Rosilah Rosilah
Keyword(s):  
Social Studies ◽  
Natural Resources ◽  
Learning Strategies ◽  
Economic Activities ◽  
Average Value ◽  
Technological Advances ◽  
Wide Range ◽  
Fourth Grade Students ◽  
Material Reality ◽  
Compulsory Subject

Learning Social Studies (IPS) is a compulsory subject taught. Learning IPS has a very wide range of material. Reality on the ground results of test scores of fourth grade students of SDN Babakan Tarogong 5 in social studies subject of natural resources, economic activity and technological advances in the district / city and province is still very low. This is due to social studies learning not meet minimum completeness, because the strategy used so far have not matched the learning process. The purpose of this study to determine the activities of students in participating in learning by using learning strategies of problem solving. The results of this research has reached the average value of the class.Keyword : Natural resources, economic activities, technological progress.

Bacterial extracellular polysaccharides

1988 ◽  
Vol 34 (4) ◽  
pp. 415-420 ◽  
Author(s):  
Chris Whitfield
Keyword(s):  
Pathogenic Bacteria ◽  
Structural Information ◽  
Extracellular Polysaccharides ◽  
Natural Environments ◽  
Chemical Structures ◽  
Technological Advances ◽  
Wide Range ◽  
Surface Polysaccharides ◽  
Surface Location ◽  
Commercial Applications

The synthesis of extracellular polysaccharides has been recognized in certain bacterial cultures since the 1880s. It is now apparent that a wide range of bacteria produce these polymers and an equally wide range of chemical structures are possible. Their surface location, together with the range of available monosaccharide combinations, noncarbohydrate substituents, and linkage types, make extracellular polysaccharides excellent agents of diversity. As a result, much effort has been directed towards elucidating their structure in pathogenic bacteria and in enteric organisms in particular. Commercial applications of microbial polysaccharides have now broadened the scope of structural information. Most recently, technological advances in molecular biology have created the possibility of manipulating desired polymer characteristics, and with these advances, our knowledge of the mechanisms of synthesis and regulation of cell surface polysaccharides has improved. Ultimately more information regarding the function of extracellular polysaccharides in natural environments may result.

The Genetics and Genomics of Asthma

2018 ◽  
Vol 19 (1) ◽  
pp. 223-246 ◽  
Author(s):  
Saffron A.G. Willis-Owen ◽  
William O.C. Cookson ◽  
Miriam F. Moffatt
Keyword(s):  
Sequence Variation ◽  
Human Microbiome ◽  
Technological Advances ◽  
Genome Wide ◽  
A Genome ◽  
Wide Range ◽  
Health And Disease ◽  
Wide Scale ◽  
Genetics And Genomics ◽  
The Individual

Asthma is a common, clinically heterogeneous disease with strong evidence of heritability. Progress in defining the genetic underpinnings of asthma, however, has been slow and hampered by issues of inconsistency. Recent advances in the tools available for analysis—assaying transcription, sequence variation, and epigenetic marks on a genome-wide scale—have substantially altered this landscape. Applications of such approaches are consistent with heterogeneity at the level of causation and specify patterns of commonality with a wide range of alternative disease traits. Looking beyond the individual as the unit of study, advances in technology have also fostered comprehensive analysis of the human microbiome and its varied roles in health and disease. In this article, we consider the implications of these technological advances for our current understanding of the genetics and genomics of asthma.

SP5.2.6 Adrenal Incidentalomas in Living Kidney Donors: A Dilemma?

2021 ◽  
Vol 108 (Supplement_7) ◽  
Author(s):  
Chloe Theodorou ◽  
Zia Moinuddin ◽  
David Van Dellen ◽  
Titus Augustine ◽  
Giuseppe Giuffrida
Keyword(s):  
Clinical Course ◽  
Vascular Anatomy ◽  
Functional Change ◽  
Adrenal Incidentalomas ◽  
Electronic Patient Records ◽  
Kidney Donors ◽  
Living Kidney Donors ◽  
Ct Angiogram ◽  
Open Discussion ◽  
Work Up

Abstract Aims During donor multi-detector CT angiogram (MDCTA), incidental findings occur, commonly adrenal incidentalomas (AIs). These are usually benign and non-functional with an estimated incidence of 4%.1 These potentially limit organ donation due to the need to exclude malignancy. There is no consensus on the management of donors with AIs.1,2 This study aims to explore the incidence and clinical course of AI’s in living kidney donors. Methods We performed a single-centre, retrospective study on all prospective living kidney donors between November 2000 and September 2020. Patients with adrenal lesions during work-up were identified and further information was collected from electronic patient records. Results Six (1.09%) of the 546 donors during that period had an AI. All were small (<4cm) and non-functional with benign radiographic features. Five (83.3%) proceeded to donation while 1 (16.7%) was unsuitable for donation due to complex vascular anatomy. Of the five donors that proceeded, 2 (40%) were contralateral and 3 (60%) ipsilateral AI’s to the side of nephrectomy. Of the 3 ipsilateral AIs, 2 (66.7%) underwent nephrectomy alone whilst 1 (33.3%) underwent a simultaneous nephrectomy and adrenalectomy. There was no evidence of malignancy or functional change in AIs post-donation. Conclusion The incidence of adrenal pathology in living donors is low and largely benign. These patients should not be excluded from donation. Such patients could benefit from open discussion regarding simultaneous adrenalectomy vs conservative management.

Augmented Reality

2018 ◽  
pp. 54-71
Author(s):  
Erkan Özdemir ◽  
Serkan Kılıç
Keyword(s):  
Augmented Reality ◽  
Real World ◽  
New Technologies ◽  
Real Life ◽  
Tourism Industry ◽  
Daily Lives ◽  
Heritage Sites ◽  
Technological Advances ◽  
Wear And Tear ◽  
Application Fields

Technological advances have had an impact on many industries as well as the tourism industry. Augmented reality applications, one of the emerging new technologies in recent years, have also started to be used in our daily lives. Augmented Reality (AR) is a technology that allows its users to see the real world together with an additional virtual world that is added in real time to the same field of view. The augmented reality applications contribute to the enrichment of tourists' tourism experiences, especially during their visit and result in augmented satisfaction levels. Furthermore, it is one of the effective tools that can be used against the wear and tear of cultural heritage sites caused by overcrowding. In this chapter, the application fields of the augmented reality in the field of tourism have been discussed under the subtitles. As a result of our study, recommendations for the development of AR applications both for the literature and real-life application have been presented.

Private Label Sales through Catalogs with Augmented Reality

2016 ◽  
pp. 275-305
Author(s):  
Gerardo Reyes Ruiz ◽  
Samuel Olmos Peña ◽  
Marisol Hernández Hernández
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
High Speed ◽  
Information Technologies ◽  
New Technologies ◽  
New Technology ◽  
Private Label ◽  
The Internet ◽  
Technological Advances ◽  
New Information

New technologies have changed the way today's own label products are being offered. Today the Internet and even more the so-called social networks have played key roles in dispersing any particular product in a more efficient and dynamic sense. Also, having a smartphone and a wireless high-speed network are no longer a luxury or a temporary fad, but rather a necessity for the new generations. These technological advances and new marketing trends have not gone unnoticed by the medium and large stores. The augmented reality applied to interactive catalogs is a new technology that supports the adding of virtual reality to a real environment which in turn makes it a tool for discovering new uses, forms, and in this case, spending habits. The challenge for companies with their private labels in achieving their business objectives, is providing customers with products and services of the highest quality, thus promoting the efficient and streamlined use of all resources that are accounted for and at the same time promoting the use of new information technologies as a strategic competitive.

Hysteroscopy

2020 ◽  
pp. 597-606
Author(s):  
O. A. O’Donovan ◽  
Peter J. O’Donovan
Keyword(s):  
Gold Standard ◽  
Uterine Cavity ◽  
Direct Visualization ◽  
Postmenopausal Bleeding ◽  
Endometrial Polyps ◽  
Current State ◽  
Technological Advances ◽  
Wide Range ◽  
Proper Training ◽  
Low Incidence

Hysteroscopy (direct endoscopic visualization) of the endometrial cavity is an exciting and rapidly developing field of gynaecological practice. The most dramatic advances have occurred during the last 20 years due to technological advances including miniaturization of equipment and improved optics. Hysteroscopy is used both diagnostically and therapeutically to treat a wide range of gynaecological problems (heavy menstrual bleeding, infertility, and postmenopausal bleeding). The most recent advances allow accurate direct visualization of the uterine cavity which provides a platform for targeted biopsies, safe removal of endometrial polyps, and treatment of fibroids, septa, and adhesions. Proper training has resulted in a low incidence of serious complications. The current consensus is that hysteroscopy provides a gold standard not only for evaluating and treating intrauterine pathology but also for allowing a minimalist approach which has resulted in improved patient outcomes. This chapter provides an overview of the current state of this exciting and evolving field.

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