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A deep cascaded segmentation of obstructive sleep apnea-relevant organs from sagittal spine MRI

Tatyana Ivanovska, Amro Daboul, Oleksandr Kalentev, Norbert Hosten, Reiner Biffar, Henry Völzke, Florentin Wörgötter
2021 International Journal of Computer Assisted Radiology and Surgery  
Purpose The main purpose of this work was to develop an efficient approach for segmentation of structures that are relevant for diagnosis and treatment of obstructive sleep apnea syndrome (OSAS), namely  ...  pharynx, tongue, and soft palate, from mid-sagittal magnetic resonance imaging (MR) data.  ...  Acknowledgements The authors thank the SHIP and Transferstelle teams from University Medicine Greifswald for providing efficient data access.  ... 
doi:10.1007/s11548-021-02333-0 pmid:33770362 fatcat:6kt5j7ftafb35fxrz542d7rpsa

Supra-Epiglottic Upper Airway Volume in Elderly Patients with Obstructive Sleep Apnea Hypopnea Syndrome

Claire Boutet, Syad Abdirahman Mohamed Moussa, Sébastien Celle, Bernard Laurent, Jean-Claude Barthélémy, Fabrice-Guy Barral, Frédéric Roche, Yue Wang
2016 PLoS ONE  
Objective Small upper airway measurements areas and high body mass index are recognized risk factors for obstructive sleep apnea syndrome (OSAS) in non-elderly populations; however, there is limited information  ...  Methods In 60 volunteers aged 75.58±0.9 years: 20 OSAS, 20 OSAS chronically treated with CPAP, and 20 controls, semi-automatic segmentation, retropalatal distance and transverse diameter of the supra-epiglottic  ...  Acknowledgments The authors would like to thank Mallory Guthro for language editing the manuscript. Author Contributions  ... 
doi:10.1371/journal.pone.0157720 pmid:27336305 pmcid:PMC4919063 fatcat:mfiexjhjirap3fy7srkxb2zbcm

Automatic MRI segmentation of para-pharyngeal fat pads using interactive visual feature space analysis for classification

Muhammad Laiq Ur Rahman Shahid, Teodora Chitiboi, Tetyana Ivanovska, Vladimir Molchanov, Henry Völzke, Lars Linsen
2017 BMC Medical Imaging  
Obstructive sleep apnea (OSA) is a public health problem.  ...  A reliable and automatic para-pharyngeal fat pads segmentation technique plays a vital role in investigating larger data bases to identify the anatomic risk factors for the OSA.  ...  Funding DAAD provided the funding to carry out this research to find the pathogenesis of obstructive sleep apnea public health problem.  ... 
doi:10.1186/s12880-017-0179-7 pmid:28196476 pmcid:PMC5309996 fatcat:uhzk5acnv5gxdk5wecrequjeqa

Relationships between MRI fat distributions and sleep apnea and obesity hypoventilation syndrome in very obese patients

C. D. Turnbull, S. H. Wang, A. R. Manuel, B. T. Keenan, A. G. McIntyre, R. J. Schwab, J. R. Stradling
2017 Sleep and Breathing  
Obesity is associated with both obstructive sleep apnea (OSA) and obesity hypoventilation.  ...  Body movements (derived automatically from the video signal), heart rate and pulse transit time changes were also routinely recorded as markers of arousal from sleep.  ...  Our data suggest that in very obese individuals, increased tongue and soft palate volumes are associated with increased severity of obstructive sleep apnea, likely due to an increased propensity of the  ... 
doi:10.1007/s11325-017-1599-x pmid:29197986 pmcid:PMC6133118 fatcat:c7wbtvgutbaqpd2amndj2a4nzu

Comparison between anatomy and resistance of upper airway in normal subjects, snorers and OSAS patients

E Verin, C Tardif, X Buffet, J.P Marie, Y Lacoume, J Andrieu-Guitrancourt, P Pasquis
2002 Respiration Physiology  
Upper airway (UA) anatomical abnormalities are frequently observed in obstructive sleep apnea syndrome (OSAS).  ...  Segmental UAR were correlated with PAS and distance from hyoid bone to mandibular plane and to pharyngeal posterior wall (PB0.05).  ...  In all cases, automatic analysis was corrected by visual analysis, and number of apneas, apnea index, number of hypopneas, hypopnea index, apnea hypopnea index (AHI), and number of desaturations were measured  ... 
doi:10.1016/s0034-5687(01)00324-3 pmid:11788136 fatcat:ci6rzcb4wzhjhe3xbiia5xqsva

Three-Dimensional Assessment of Pharyngeal Airway Space by MRI in Class II Division 1 Patients Treated by Twin Block Appliance

Ram Gopal, Tulika Tripathi, Priyank Rai, Anup Kanase
2018 Journal of Clinical and Diagnostic Research  
All the orthodontic records and MRI were collected at two stages, T1 (Pre-treatment) and T2 (Posttreatment). Three-dimensional analysis of pharyngeal airway space was performed.  ...  Normality of the data was checked by Kolmogorov Smirnov test. Paired-t test was performed to compare the means at T1 and T2.  ...  MRI is an accurate, threedimensional, non-invasive and superior diagnostic tool for soft tissues and should be considered specially when mandibular morphology may affect PAS viz., obstructive sleep apnea  ... 
doi:10.7860/jcdr/2018/32552.12022 fatcat:oqxq27imdjacno3aa7f42frabi

Effects of nasal high flow on sympathovagal balance, sleep, and sleep-related breathing in patients with precapillary pulmonary hypertension

Jens Spiesshoefer, Britta Bannwitz, Michael Mohr, Simon Herkenrath, Winfried Randerath, Paolo Sciarrone, Christian Thiedemann, Hartmut Schneider, Andrew T. Braun, Michele Emdin, Claudio Passino, Michael Dreher (+2 others)
2020 Sleep and Breathing  
of obstructive sleep apnea (OSA) due to generation of positive airway pressure.  ...  In-depth SVB analysis was conducted on 10-min epochs during daytime and stable N2 sleep at nighttime.  ...  system, SVB and hemodynamic data.  ... 
doi:10.1007/s11325-020-02159-1 pmid:32827122 pmcid:PMC8195975 fatcat:g7ef7himpvdbfl7vxvrm5hn7va

MRI flow measurements with a flexible stenosis phantom

Alina Ibbeken, Pragathi Gurumurthy, Fenja Zell, Christina Hagen, Martin A. Koch, Thorsten M. Buzug
2019 Current Directions in Biomedical Engineering  
Obstructive sleep apnea (OSA) is a common sleep disorder caused by the collapse of the upper airway during sleep due to a shift of soft tissues.  ...  As a first step, a flexible tube with a stenosis was manufactured, representing a simple model of the pharynx geometry.  ...  Introduction Obstructive sleep apnea (OSA) is a common sleeping disorder caused by the repetitive complete or partial obstruction of the upper airway due to a shift of the soft tissue.  ... 
doi:10.1515/cdbme-2019-0142 fatcat:5toyh3x5bjbsniqgmjf5k43oyu

Obstructive sleep apnea and primary snoring: diagnosis

2014 Brazilian Journal of Otorhinolaryngology  
Objective To evaluate the diagnoses of obstructive sleep apnea and primary snoring in adults and children, focusing on data from medical history, questionnaires, physical examination, and laboratory  ...  Morphologic analyses of mandible and upper airway soft tissue by MRI of patients with obstructive sleep apnea hypopnea syndrome.  ... 
doi:10.5935/1808-8694.2014s001 fatcat:y4ba6uwo5rd7rcyns55gbdt6hu

Computational Fluid Dynamics Modeling in Respiratory Airways Obstruction: Current Applications and Prospects

Oyejide James Ayodele, Atoyebi Ebenezer Oluwatosin, Olutosoye Christian Taiwo, Ademola Adebukola Dare
2021 International Journal of Biomedical Science and Engineering  
obstruction and airway collapse in obstructive sleep apnea were also correlated.  ...  Breathing conditions pertaining to nasal obstruction, obstructive sleep apnea, and airflow resistance in the human lower airways have been investigated extensively by researchers over the years.  ...  sleep apnea (OSA) syndrome.  ... 
doi:10.11648/j.ijbse.20210902.12 fatcat:4vgtarsao5ehbphcdtcfbs6kca

Evaluación de la Vía Aérea superior en Ortodoncia. Revisión Narrativa

Erwin Rojas, Rodrigo Corvalán, Eduardo Messen, Paulo Sandoval
2017 Odontoestomatología  
., because of its close connection with the development of craniofacial structures and with other pathologies such as Obstructive Sleep Apnea Syndrome (OSAS).  ...  , and to describe and evaluate the information level and diagnostic accuracy of methods such as lateral cephalometric analysis and cone beam CT.  ...  These anomalies require early detection, and it has been shown that the early diagnosis and treatment of obstructive sleep apnea-hypopnea syndrome allows for an almost complete normalization of dentofacial  ... 
doi:10.22592/ode2017n30a5 fatcat:pxdbillywrfyjgn4ci3pxzk3ce

Surgical changes of posterior airway space in obstructive sleep apnea

Peter D Waite, Georgios A Vilos
2002 Oral and Maxillofacial Surgery Clinics of North America  
There are numerous medical and surgical treatment modalities for the management of the sleep apnea patient.  ...  Suto and coworkers [14] used ultrafast MRI in patients with sleep apnea as well as in healthy control subjects. The subjects were scanned while awake and during sleep induced with hydroxyzine.  ... 
doi:10.1016/s1042-3699(02)00033-x pmid:18088641 fatcat:ffzxpzmlxvhqbbsmig7zxgp53y

Velopharyngeal mucosal surface topography in healthy subjects and subjects with obstructive sleep apnea

Christopher Lambeth, Jason Amatoury, Ziyu Wang, Sheryl Foster, Terence Amis, Kristina Kairaitis
2017 Journal of applied physiology  
. upper airway modeling; surface reconstruction; surface topography; curvature analysis; obstructive sleep apnea OBSTRUCTIVE SLEEP APNEA (OSA) is characterized by recurrent upper airway (UA) obstruction  ...  Axial MRIs were imported into three-dimensional (3D) data visualization software (Amira version 5.2; Visage Imaging), and the velopharyngeal mucosal surface (air-mucosa interface) was automatically segmented  ...  AUTHOR CONTRIBUTIONS C.L. and Z.W. analyzed data; C.L., Z.W., T.C.A., and K.K. interpreted results of experiments; C.L. and Z.W. prepared figures; C.L. drafted manuscript; C.L., J.A., T.C.A., and K.K.  ... 
doi:10.1152/japplphysiol.00764.2016 pmid:28008099 fatcat:wou4dtomx5dubdeviqhflokdze

Patient-specific geometry modeling and mesh generation for simulating Obstructive Sleep Apnea Syndrome cases by Maxillomandibular Advancement

Yasushi Ito, Gary C. Cheng, Alan M. Shih, Roy P. Koomullil, Bharat K. Soni, Somsak Sittitavornwong, Peter D. Waite
2011 Mathematics and Computers in Simulation  
of the pre-and postoperative upper airway systems of Obstructive Sleep Apnea Syndrome (OSAS) patients by viscous Computational Fluid Dynamics (CFD) simulations.  ...  The objective of this paper is the reconstruction of upper airway geometric models as hybrid meshes from clinically used Computed Tomography (CT) data sets in order to understand the dynamics and behaviors  ...  Introduction Obstructive Sleep Apnea Syndrome (OSAS) is one of the most common sleep disorders and an important public health problem to address.  ... 
doi:10.1016/j.matcom.2011.02.006 pmid:21625395 pmcid:PMC3100779 fatcat:jl26wk3s3vba7lighe2ruqqbg4

Anatomical Optical Coherence Tomography for Long-Term, Portable, Quantitative Endoscopy

M.S. Leigh, J.J. Armstrong, A. Paduch, J.H. Walsh, D.R. Hillman, P.R. Eastwood, D.D. Sampson
2008 IEEE Transactions on Biomedical Engineering  
We consider the design and performance of an instrument and its initial intended application in the human upper airway for the characterization of obstructive sleep apnea (OSA).  ...  Our experiments show that the instrument is capable of imaging subjects during sleep, and that it can record dynamic changes in airway size and shape.  ...  ACKNOWLEDGMENT The authors would like to thank the following individuals for their support and contributions to this work: K. Maddison and K.  ... 
doi:10.1109/tbme.2007.913409 pmid:18390336 fatcat:it4dqmshx5g6vbixfxrenfeuaa
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