f luid dynamics of the nasal cavity
play

F LUID DYNAMICS OF THE NASAL CAVITY : The procedure HOW TO , WHAT - PowerPoint PPT Presentation

Mar 17, 2023 •379 likes •732 views

The nose Our vision F LUID DYNAMICS OF THE NASAL CAVITY : The procedure HOW TO , WHAT FOR . Why Open? The future Maurizio Quadrio Politecnico di Milano Dept. of Aerospace Sciences and Technologies The nose Our vision The procedure Why

  1. The nose Our vision F LUID DYNAMICS OF THE NASAL CAVITY : The procedure HOW TO , WHAT FOR . Why Open? The future Maurizio Quadrio Politecnico di Milano Dept. of Aerospace Sciences and Technologies

  2. The nose Our vision The procedure Why Open? The future

  3. C REDITS The nose Our vision Giovanni Felisati (Polo Osp. s.Paolo Milano & UniMI) The procedure Carlotta Pipolo (Polo Osp. s.Paolo Milano & UniMI) Why Open? Francesco Messina (Polo Osp. s.Paolo Milano) The future Samuele Zampini (DAST PoliMI) Stefano Corti (DAST PoliMI, STR) Chiara Pesci (DAST PoliMI)

  4. O UTLINE The nose T HE NOSE 1 Our vision The procedure O UR vision 2 Why Open? The future T HE PROCEDURE 3 W HY O PEN ? 4 T HE FUTURE 5

  5. F UNCTIONS OF THE HUMAN NOSE The nose Our vision The First (upper) part of respiratory airways procedure Why Open? Air filtering The future Air humidification Air heating Olfactive perception (+ taste)

  6. I NTERNAL STRUCTURE The nose Our vision The procedure Why Open? The future

  7. S INUSES AND TURBINATES The nose Our vision The procedure Why Open? The future

  8. A 3D VIEW The nose Our vision The procedure Why Open? The future

  9. C ORONAL SECTION : TURBINATES AND MEATA The nose Our vision The procedure Why Open? The future

  10. S IGNIFICANT LONGITUDINAL VARIATIONS The nose Our vision The procedure Why Open? The future

  11. H OW TO STUDY THE NASAL CAVITY The nose Our vision The procedure In-vivo approach: difficult, not useful Why Open? In-vitro approach: rarely used The future First meaningful CFD study in 2004 (Zhao, Chem. Senses)

  12. CFD: STATE OF THE ART C HARACTERISTICS AND LIMITATIONS The nose Our vision The Long times (weeks/months) for producing a mesh procedure Why Open? Questionable (but never questioned!) modellistic The future approaches RANS (or laminar) Results cannot be verified

  13. M ODELLING LIMITATIONS The nose Our vision The procedure Why Open? The future

  14. O UTLINE The nose T HE NOSE 1 Our vision The procedure O UR vision 2 Why Open? The future T HE PROCEDURE 3 W HY O PEN ? 4 T HE FUTURE 5

  15. T HE PROBLEM The nose Our vision The procedure In 2009 Regione Lombardia has spent: Why Open? Septoplastic: 5600 procedures, 8.6M e The future Turbinates surgery: 3000 procedures, 4.3M e FESS: 5700 procedures, 11.6M e

  16. FESS Nowadays functional endoscopic sinus surgery (FESS) is the gold standard for chronic NBD The nose treatment. The operation generally involves Our vision inferior/middle turbinoplasty and uncinate and The procedure ethmoid excision, sometimes followed by opening Why Open? of the maxillary, sphenoid and frontal sinuses. A The future correction of a nasal septal deviation can also be necessary. ... However, we are currently unable to assess the relevance of every single anatomic anomaly and its surgical modification on the overall nasal flow quality and nasal obstruction. Quadrio et al, 2013? 2014?

  17. O UTLINE The nose T HE NOSE 1 Our vision The procedure O UR vision 2 Why Open? The future T HE PROCEDURE 3 W HY O PEN ? 4 T HE FUTURE 5

  18. T HE PROCEDURE The nose Our vision Patient-specific procedure The procedure CFD results from a CT scan Why Open? Support to surgery planning (virtual surgery) The future Reliable results Robust and feasible procedure (time and cost) Goal: reduce / optimize surgery

  19. T HE TOOLCHAIN The nose Our vision The procedure 1 Analysis of CT scan (3DSlicer) Why Open? 2 STL from CT scan (3DSlicer) The future 3 Volume mesh (OpenFOAM – snappyHexMesh) 4 CFD (OpenFOAM)

  20. 1/4 A NALYSIS OF THE CT SCAN I MPORTANT SEPTAL DEVIATION The nose Our vision The procedure Why Open? The future

  21. 1/4 A NALYSIS OF THE CT SCAN (2) N EARLY - COMPLETE OBSTRUCTION The nose Our vision The procedure Why Open? The future

  22. 2/4 STL FROM CT SCAN W RONG HU THRESHOLD The nose Our vision The procedure Why Open? The future

  23. 2/4 STL FROM CT SCAN (2) C ORRECT HU THRESHOLD The nose Our vision The procedure Why Open? The future

  24. 3/4 V OLUME MESH C ASTELLATED MESH The nose Our vision The procedure Why Open? The future

  25. 3/4 V OLUME MESH (2) C ASTELLATED MESH The nose Our vision The procedure Why Open? The future

  26. 3/4 V OLUME MESH (3) S NAP The nose Our vision The procedure Why Open? The future

  27. 3/4 V OLUME MESH (4) C ASTELLATED MESH The nose Our vision The procedure Why Open? The future

  28. 3/4 V OLUME MESH (5) A DDING LAYERS The nose Our vision The procedure Why Open? The future

  29. 4/4 CFD S TEADY INSPIRATION , LAMINAR The nose Our vision The procedure Why Open? The future

  30. O UTLINE The nose T HE NOSE 1 Our vision The procedure O UR vision 2 Why Open? The future T HE PROCEDURE 3 W HY O PEN ? 4 T HE FUTURE 5

  31. T HE ROLE OF O PEN SOURCE AND O PEN FOAM The nose Our vision The procedure Freedom Why Open? The future Reliability Flexibility

  32. O UTLINE The nose T HE NOSE 1 Our vision The procedure O UR vision 2 Why Open? The future T HE PROCEDURE 3 W HY O PEN ? 4 T HE FUTURE 5

  33. N EXT STEPS The nose Our vision The Virtual surgery procedure Why Open? 3D-PIV lab experiment for validation (grant from The future Ministry of Health) LES Trial before large scale deployment

  34. V IRTUAL SURGERY R EMOVING SEPTAL DEVIATION / TURBINATE REDUCTION The nose Our vision The procedure Why Open? The future

Download Presentation
Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend

Numerical simulation of human nasal cavity flow with particle V. Covello , C. Pipolo , G.

Numerical simulation of human nasal cavity flow with particle V. Covello , C. Pipolo , G.

Introduction Methodologies Numerical Results Conclusion Numerical simulation of human nasal cavity flow with particle V. Covello , C. Pipolo , G. Felisati , M. Quadrio Department of Aerospace Science and Technology,

726 views • 31 slides
Nasal Reconstruction in Traumatic Nasal Injury Lateral Nasal Artery Perforator Flap

Nasal Reconstruction in Traumatic Nasal Injury Lateral Nasal Artery Perforator Flap

Nasal Reconstruction in Traumatic Nasal Injury Lateral Nasal Artery Perforator Flap Application in Case Report Ming-Chuan Lu, Li-Fu Cheng, Jiun-Tat Lee Department of Plastic Surgery Hualien Tzu-Chi Hospital, Taiwan, R.O.C. Nothing to discose

347 views • 13 slides
N ew to nian F luid = + 2 + .

N ew to nian F luid = + 2 + .

N avier-S to kes equatio n fo r an inco m pres s ible N ew to nian F luid = + 2 + . + Breur Lab, Brown University Ted Caplow, Columbia

238 views • 13 slides
P OPULATION CTMC A population model is thus given by a tuple X ( N ) = ( X ( N ) , T ( N ) , x ( N

P OPULATION CTMC A population model is thus given by a tuple X ( N ) = ( X ( N ) , T ( N ) , x ( N

F LUID M ODEL C HECKING F LUID A PPROXIMATION FOR C HECKING L OGIC P ROPERTIES IN M ARKOV P OPULATION M ODELS Luca Bortolussi 1 , 2 1 Dipartimento di Matematica e Geoscienze Universit degli studi di Trieste 2 CNR/ISTI, Pisa luca@dmi.units.it

1.43k views • 122 slides
v Tuning of a DQW crab cavity S. Verdu-Andres (BNL) for the Crab Cavity Work Package Tuning of a

v Tuning of a DQW crab cavity S. Verdu-Andres (BNL) for the Crab Cavity Work Package Tuning of a

Joint LARP CM26 / HiLumi Meeting | SLAC | 19 May 2016 v Tuning of a DQW crab cavity S. Verdu-Andres (BNL) for the Crab Cavity Work Package Tuning of a DQW crab cavity for SPS beam tests - goal Resonant frequency of DQW crab cavity must be

432 views • 25 slides
ISSN:2250-0359

ISSN:2250-0359

ISSN:2250-0359 Volume 4 Issue 2 2014 AN UNUSUAL PRESENTATION OF EPITHELIAL - MYOEPITHELIAL CARCINOMA OF THE NASAL CAVITY Gokcen Coskun Bal 1 , Guler Berkiten 2 , Muhlis

422 views • 8 slides
Cavity/Muon timing Need 1. Cavity phase and amplitude measurement. 2. Cavity phase for each

Cavity/Muon timing Need 1. Cavity phase and amplitude measurement. 2. Cavity phase for each

Cavity/Muon timing Need 1. Cavity phase and amplitude measurement. 2. Cavity phase for each Muon. Unambiguous phase assignment for each particle. Muon phase can be calculated from experiment as long as individual muons can be bundled

108 views • 8 slides
Surgery of the Nasal Valve Scott B. Roofe, MD, FACS Facial Plastic and Reconstructive Surgery

Surgery of the Nasal Valve Scott B. Roofe, MD, FACS Facial Plastic and Reconstructive Surgery

Surgery of the Nasal Valve Scott B. Roofe, MD, FACS Facial Plastic and Reconstructive Surgery Tripler Army Medical Center From: Nasal Valve Reconstruction: Experience in 53 Consecutive Patients Nasal surgery Internal valve Arch Facial

370 views • 26 slides
Breakdown in All Seasons Cavity K. Yonehara APC, Fermilab

Breakdown in All Seasons Cavity K. Yonehara APC, Fermilab

Breakdown in All Seasons Cavity K. Yonehara APC, Fermilab Electron dynamics Consider only surface emission electrons Electrons are accelerated by

661 views • 13 slides
CLIC Crab Cavity and Wakefields Praveen Ambattu CLIC crab group Cockcroft Institute / Lancaster

CLIC Crab Cavity and Wakefields Praveen Ambattu CLIC crab group Cockcroft Institute / Lancaster

ICFA Beam Dynamics Workshop 2010, Daresbury CLIC Crab Cavity and Wakefields Praveen Ambattu CLIC crab group Cockcroft Institute / Lancaster University / University of Manchester / ASTeC Crab Cavity Operation BDS chapter of the CLIC CDR,

586 views • 17 slides
Velar nasal plus in the north of (ing)land George Bailey University of Manchester @grbails

Velar nasal plus in the north of (ing)land George Bailey University of Manchester @grbails

Velar nasal plus in the north of (ing)land George Bailey University of Manchester @grbails UKLVC11 - 31st August 2017 1. Introduction Velar nasal plus Historical origin The life cycle 2. Methodology 3. Results Unstressed (ing) Stressed

604 views • 31 slides
Velar nasal plus in the north of (ing)land George Bailey University of Manchester @grbails

Velar nasal plus in the north of (ing)land George Bailey University of Manchester @grbails

Velar nasal plus in the north of (ing)land George Bailey University of Manchester @grbails NWAV45 - 4th November 2016 1. Introduction The topic Velar nasal plus Historical origin The life cycle 2. Methodology 3. Results Unstressed (ing)

460 views • 33 slides
1 Update on New ENT WHO L.D.R. Thompson 7 8 HPV-related carcinoma with Non-keratinizing

1 Update on New ENT WHO L.D.R. Thompson 7 8 HPV-related carcinoma with Non-keratinizing

L.D.R. Thompson 2017 Head and Neck Tumors Selected Topics Lester D. R. Thompson 1 2 Inclusion Criteria 1. The tumor occurs exclusively at this site; Nasal Cavity and 2. The tumor also occurs at other head and Paranasal Sinuses neck

278 views • 27 slides
ADMX 2A Cavity Array Mechanical Design J. Gleason, D. Tanner, N. Sullivan, J. Yang 2A Cavity

ADMX 2A Cavity Array Mechanical Design J. Gleason, D. Tanner, N. Sullivan, J. Yang 2A Cavity

ADMX 2A Cavity Array Mechanical Design J. Gleason, D. Tanner, N. Sullivan, J. Yang 2A Cavity Array Fabrication Deliverables Cavity array core assembly Interface to insert components Assembly / test fixtures Crating /

481 views • 21 slides
Cavity Ring-Down Las er Abs orption Spectros copy Humberto Cabrera 1. Introduccin The method

Cavity Ring-Down Las er Abs orption Spectros copy Humberto Cabrera 1. Introduccin The method

Cavity Ring-Down Las er Abs orption Spectros copy Humberto Cabrera 1. Introduccin The method is based on measurement of the time rate of decay of a pulse of light trapped in a high reflectance optical cavity; we call it cavity ringdown laser

223 views • 6 slides
Post Nasal Devoicing as Opacity: A Problem for Natural Constraints BRANDON PRICKETT UNIVERSITY

Post Nasal Devoicing as Opacity: A Problem for Natural Constraints BRANDON PRICKETT UNIVERSITY

Post Nasal Devoicing as Opacity: A Problem for Natural Constraints BRANDON PRICKETT UNIVERSITY OF MASSACHUSETTS, AMHERST 35 TH WEST COAST CONFERENCE ON FORMAL LINGUISTICS Overview 1. Introduction i. Naturalness ii. Post-nasal devoicing

522 views • 40 slides
School Based Oral Health Programs: Annual Reporting 1 Definitions Treated + Untreated = History

School Based Oral Health Programs: Annual Reporting 1 Definitions Treated + Untreated = History

Data Reporting Presentation December, 2015 School Based Oral Health Programs: Annual Reporting 1 Definitions Treated + Untreated = History need to be Treated = History clarified Reporting forms vary by Need to ensure program (some

73 views • 6 slides
1 Plaque begins to harden onto the teeth after 24 hours therefore it can be easily removed if the

1 Plaque begins to harden onto the teeth after 24 hours therefore it can be easily removed if the

The purpose of this presentation is to provide a short inservice to caregiver staff (PSWs and health care aides) who provide assistance to residents in their activities of daily living. It is designed to take approximately 10 minutes to

403 views • 15 slides
Current Research on the Safety and Effectiveness of Fluoride For links to the research, please

Current Research on the Safety and Effectiveness of Fluoride For links to the research, please

Current Research on the Safety and Effectiveness of Fluoride For links to the research, please contact us and we will send you a document with operable links: Oregon Health Authority/Oral Health Unit Phone: 971-673-0235 Email:

332 views • 21 slides
Burden and trend of Cancer in Europe: First step towards Earlier Detection Isabelle

Burden and trend of Cancer in Europe: First step towards Earlier Detection Isabelle

Burden and trend of Cancer in Europe: First step towards Earlier Detection Isabelle Soerjomataram Budapest 20 May 2019 Early Detection: Recommendation Early Detection: Recommendation Burden of Cancer in Europe Cancer incidence: European

831 views • 58 slides
2 Yes! s! eYE YE DO DO. 3 Yes! s! 4 Or Oral C l Canc ncer All malignant cancerous

2 Yes! s! eYE YE DO DO. 3 Yes! s! 4 Or Oral C l Canc ncer All malignant cancerous

2 Yes! s! eYE YE DO DO. 3 Yes! s! 4 Or Oral C l Canc ncer All malignant cancerous tissue growth located in the oral cavity 90% are squamous cell carcinomas https://en.wikipedia.org/wiki/Oral_cancer

500 views • 30 slides
Results of first outdoor comparison between Absolute Cavity Pyrgeometer (ACP) and Infrared

Results of first outdoor comparison between Absolute Cavity Pyrgeometer (ACP) and Infrared

Results of first outdoor comparison between Absolute Cavity Pyrgeometer (ACP) and Infrared Integrating Sphere (IRIS) Radiometer at PMOD Atmospheric System Research Science Team Meeting (March 18 21, 2013) by Ibrahim Reda*, Julian Grbner**,

251 views • 12 slides
Advanced LIGO Input Optics Design Requirements Review Presentation Outline Design

Advanced LIGO Input Optics Design Requirements Review Presentation Outline Design

Advanced LIGO Input Optics Design Requirements Review Presentation Outline Design Requirements Introduction, Production Functions (Dave R., 5 minutes) Design Requirements (Guido*, 55 minutes) Conceptual Design Introduction,

507 views • 48 slides
Multipacting supression in 56 MHz QWR by ripple structure Damayanti Naik January 8-9, 2009 1

Multipacting supression in 56 MHz QWR by ripple structure Damayanti Naik January 8-9, 2009 1

Multipacting supression in 56 MHz QWR by ripple structure Damayanti Naik January 8-9, 2009 1 Requirement of Multipacting simulation in 56 MHz QWR Multipacting is expected Consequences 1. RF structure under vacuum 1. Unable to work to its

554 views • 21 slides

More recommend