Building a three-dimensional model of the upper gastrointestinal tract for computer simulations of swallowing

Gastélum, Alfonso; Mata, L. Soto; Brito-de-la-Fuente, Edmundo; Delmas, Patrice; Vicente, William; Salinas-Vázquez, M.; Ascanio, Gabriel; Márquez, Juan Francisco

doi:10.1007/s11517-015-1338-z

Cited by 4 publications

(3 citation statements)

References 27 publications

(25 reference statements)

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“…Computer simulation of swallowing has had relatively minimal progress due to the complex psychophysics. The geometry of the pharynx can be visualised in 3D [74], but only as a solid, stationary model; a deformable tongue model has been created [75], but approximating it as a passive viscoelastic material is extremely simplified. A simulation of the motion of different fluid consistencies has been included in an app available in the UK [76]; although very simple, this provides a visual indication of consistency.…”

Section: Future Directionsmentioning

confidence: 99%

A review of diet standardization and bolus rheology in the management of dysphagia

Hanson

2016

Current Opinion in Otolaryngology & Head and Neck Surgery

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Purpose: Texture modification is a widespread practice as a strategy for the management of dysphagia and can be very effective in individual cases. However, it is often performed in a qualitative, subjective manner and practices vary internationally according to multiple sets of national guidelines. This paper aims to identify best practice by reviewing the theory and practice of texture modification, focussing on recent advances. Recent findings:Instrumental assessment of texture modification in-vivo is challenging, but studies including rheology and perception have indicated that fluid viscosity is only one of many factors affecting texture modification in practice. Systematic reviews have identified a historical lack of high-quality clinical evidence, but recent controlled studies are beginning to identify positive and negative aspects of thickened fluids. Research and practice to date have been limited by the lack of control and standardisation of foods and drinks. However in 2015 a notfor-profit organisation, the International Dysphagia Diet Standardisation Initiative, has published a framework for texture modification from thin liquids to solid foods based on all the existing documentation and guidance, and the -limited-available clinical evidence. Summary:Rheology exists in the lab, however normal practice is often subjective or lacking control and standardisation. In the near future, cohesion of practice and the availability of practical standardisation tools may increase awareness and use of rheology. KeywordsDysphagia, Swallowing, Rheology, Viscosity, Texture modification Key points •The relationships between rheology and swallowing are beginning to be characterised using oral pressure sensing and videofluoroscopy, together with careful control of bolus rheology.• It is becoming clearer that viscosity alone is not sufficient to categorise texture modification.• Literature to date shows a trend for reduced aspiration with increased thickness of liquids, and increased residue with some thicker consistencies, however evidence is scarce.• An inconsistent approach to definition of texture modification techniques has been limiting the collation of a coherent evidence base.• A new international standard (IDDSI) has been created, drawing on available evidence and including practical objective measures.

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Section: Future Directionsmentioning

confidence: 99%

A review of diet standardization and bolus rheology in the management of dysphagia

Hanson

2016

Current Opinion in Otolaryngology & Head and Neck Surgery

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“…Thus, it enables surgeons to have a more intuitive understanding of the surgical site, and it also provides an imaging basis for surgical planning and reducing the incidence of intra-and postoperative complications 21 . Virtual endoscopy is now regarded as a cutting-edge technology for assisting the diagnosis and treatment in clinical practice 22–24 . In this study, VE was used for the first time in MVD for the treatment of TN, and 3D models of skull, sigmoid sinus, brain, roots of trigeminal and facial nerves and vessels were reconstructed.…”

Section: Discussionmentioning

confidence: 99%

“…21 Virtual endoscopy is now regarded as a cutting-edge technology for assisting the diagnosis and treatment in clinical practice. [22][23][24] In this study, VE was used for the first time in MVD for the treatment of TN, and 3D models of skull, sigmoid sinus, brain, roots of trigeminal and facial nerves and vessels were reconstructed. This technology has the following advantages.…”

Section: Discussionmentioning

confidence: 99%

Application of Virtual Endoscopy in Microvascular Decompression of Trigeminal Neuralgia

Wei

Liu

Zhang

et al. 2020

Journal of Craniofacial Surgery

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Purpose:The main purpose of this study is to evaluate the accuracy of virtual endoscopy (VE) in microvascular decompression (MVD) for the treatment of trigeminal neuralgia (TN). Methods: A total of 30 TN patients aged 42 to 70 years were recruited from January 2015 to January 2019, and all patients were confirmed to have severe neurovascular compression (NVC) (!degree 2) by magnetic resonance tomographic angiography (MRTA). Preoperative MRTA and enhanced CT were performed, and the data were imported into Stlview software for VE simulation of MVD. The reliability of VE, real endoscopy, and MRTA in evaluating the degree and position of MVD in TN patients was compared. Results: Virtual endoscopy is more reliable than MRTA in evaluating the degree of NVC, but both of them are reliable in determining the position of NVC in TN patients. Conclusions: Virtual endoscopy can be used in MVD for the treatment of TN, including preoperative diagnosis and risk evaluation, intraoperative guidance, and postoperative evaluation.

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A survey of feature extraction and fusion of deep learning for detection of abnormalities in video endoscopy of gastrointestinal-tract

et al. 2019

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Building a three-dimensional model of the upper gastrointestinal tract for computer simulations of swallowing

Cited by 4 publications

References 27 publications

A review of diet standardization and bolus rheology in the management of dysphagia

A review of diet standardization and bolus rheology in the management of dysphagia

Application of Virtual Endoscopy in Microvascular Decompression of Trigeminal Neuralgia

A survey of feature extraction and fusion of deep learning for detection of abnormalities in video endoscopy of gastrointestinal-tract

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