| Records |
| Author |
Vinchurkar, S.; De Backer, L.; Vos, W.; Van Holsbeke, C.; de Backer, J.; de Backer, W. |
| Title |
A case series on lung deposition analysis of inhaled medication using functional imaging based computational fluid dynamics in asthmatic patients : effect of upper airway morphology and comparison with in vivo data |
Type |
A1 Journal article |
| Year |
2012 |
Publication |
Inhalation Toxicology |
Abbreviated Journal |
Inhal Toxicol |
| Volume |
24 |
Issue |
2 |
Pages |
81-88 |
| Keywords |
A1 Journal article; Pharmacology. Therapy; Biophysics and Biomedical Physics; Condensed Matter Theory (CMT); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
Context: Asthma affects 20 million Americans resulting in an economic burden of approximately $18 billion in the US alone (Allergies and Asthma Foundation 2000; National Center for Environmental Health (NCEH) 1999). Research studies based on differences in patient-specific airway morphology for asthma and the associated effect on deposition of inhaled aerosols are currently not available in the literature. Therefore, the role of morphological variations such as upper airway (extrathoracic) occlusion is not well documented. Objective: Functional imaging based computational fluid dynamics (CFD) of the respiratory airways for five asthmatic subjects is performed in this study using computed tomography (CT) based patient-specific airway models and boundary conditions. Methods: CT scans for 5 asthma patients were used to reconstruct 3D lung models using segmentation software. An averaged inhalation profile and patient-specific lobar flow distribution were used to perform the simulation. The simulations were used to obtain deposition for BDP/Formoterol (R) HFA pMDI in the patient-specific airway models. Results: The lung deposition obtained using CFD was in excellent agreement with available in vivo data using the same product. Specifically, CFD resulted in 30% lung deposition, whereas in vivo lung deposition was reported to be approximately 31%. Conclusion: It was concluded that a combination of patient-specific airway models and lobar boundary conditions can be used to obtain accurate lung deposition estimates. Lower lung deposition can be expected for patients with higher extrathoracic resistance. Novel respiratory drug delivery devices need to accommodate population subgroups based on these morphological and anatomical differences in addition to subject age. |
| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication  |
New York, N.Y. |
Editor |
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| Language |
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Wos |
000299744800001 |
Publication Date |
2012-01-20 |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0895-8378;1091-7691; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
| Impact Factor |
1.751 |
Times cited |
36 |
Open Access |
|
| Notes |
; ; |
Approved |
Most recent IF: 1.751; 2012 IF: 1.894 |
| Call Number |
UA @ lucian @ c:irua:96238 |
Serial |
286 |
| Permanent link to this record |
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| Author |
de Backer, J.W.; Vos, W.G.; Devolder, A.; Verhulst, S.L.; Germonpré, P.; Wuyts, F.L.; Parizel, P.M.; de Backer, W. |
| Title |
Computational fluid dynamics can detect changes in airway resistance in asthmatics after acute bronchodilation |
Type |
A1 Journal article |
| Year |
2008 |
Publication |
Journal of biomechanics |
Abbreviated Journal |
J Biomech |
| Volume |
41 |
Issue |
1 |
Pages |
106-113 |
| Keywords |
A1 Journal article; Condensed Matter Theory (CMT); Antwerp Surgical Training, Anatomy and Research Centre (ASTARC); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
New York, N.Y. |
Editor |
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| Language |
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Wos |
000253062100014 |
Publication Date |
2007-08-15 |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0021-9290; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
| Impact Factor |
2.664 |
Times cited |
53 |
Open Access |
|
| Notes |
|
Approved |
Most recent IF: 2.664; 2008 IF: 2.784 |
| Call Number |
UA @ lucian @ c:irua:64859 |
Serial |
456 |
| Permanent link to this record |
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| Author |
Vos, W.; de Backer, J.; Devolder, A.; Vanderveken, O.; Verhulst, S.; Salgado, R.; Germonpré, P.; Partoens, B.; Wuyts, F.; Parizel, P.; de Backer, W. |
| Title |
Correlation between severity of sleep apnea and upper airway morphology based on advanced anatomical and functional imaging |
Type |
A1 Journal article |
| Year |
2007 |
Publication |
Journal of biomechanics |
Abbreviated Journal |
J Biomech |
| Volume |
40 |
Issue |
10 |
Pages |
2207-2213 |
| Keywords |
A1 Journal article; Condensed Matter Theory (CMT); Antwerp Surgical Training, Anatomy and Research Centre (ASTARC); Laboratory Experimental Medicine and Pediatrics (LEMP); Translational Neurosciences (TNW) |
| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
New York, N.Y. |
Editor |
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| Language |
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Wos |
000248468000011 |
Publication Date |
2006-12-19 |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0021-9290; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
| Impact Factor |
2.664 |
Times cited |
86 |
Open Access |
|
| Notes |
|
Approved |
Most recent IF: 2.664; 2007 IF: 2.897 |
| Call Number |
UA @ lucian @ c:irua:62425 |
Serial |
523 |
| Permanent link to this record |
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| Author |
de Backer, J.W.; Vanderveken, O.M.; Vos, W.G.; Devolder, A.; Verhulst, S.L.; Verbraecken, J.A.; Parizel, P.M.; Braem, M.J.; van de Heyning, P.H.; de Backer, W.A. |
| Title |
Functional imaging using computational fluid dynamics to predict treatment success of mandibular advancement devices in sleep-disordered breathing |
Type |
A1 Journal article |
| Year |
2007 |
Publication |
Journal of biomechanics |
Abbreviated Journal |
J Biomech |
| Volume |
40 |
Issue |
16 |
Pages |
3708-3714 |
| Keywords |
A1 Journal article; Condensed Matter Theory (CMT); Antwerp Surgical Training, Anatomy and Research Centre (ASTARC); Laboratory Experimental Medicine and Pediatrics (LEMP); Translational Neurosciences (TNW) |
| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
New York, N.Y. |
Editor |
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| Language |
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Wos |
000251845100020 |
Publication Date |
2007-08-01 |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
|
| ISSN |
0021-9290; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
| Impact Factor |
2.664 |
Times cited |
66 |
Open Access |
|
| Notes |
|
Approved |
Most recent IF: 2.664; 2007 IF: 2.897 |
| Call Number |
UA @ lucian @ c:irua:64860 |
Serial |
1299 |
| Permanent link to this record |
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| Author |
de Backer, J.W.; Vos, W.G.; Burnell, P.; Verhulst, S.L.; Salmon, P.; de Clerck, N.; de Backer, W. |
| Title |
Study of the variability in upper and lower airway morphology in Sprague-Dawley rats using modern micro-CT scan-based segmentation techniques |
Type |
A1 Journal article |
| Year |
2009 |
Publication |
The anatomical record: advances in integrative anatomy and evolutionary biology |
Abbreviated Journal |
Anat Rec |
| Volume |
292 |
Issue |
5 |
Pages |
720-727 |
| Keywords |
A1 Journal article; Condensed Matter Theory (CMT); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
Animal models are being used extensively in pre-clinical and safety assessment studies to assess the effectiveness and safety of new chemical entities and delivery systems. Although never entirely replacing the need for animal testing, the use of computer simulations could eventually reduce the amount of animals needed for research purposes and refine the data acquired from the animal studies. Computational fluid dynamics is a powerful tool that makes it possible to simulate flow and particle behavior in animal or patient-specific respiratory models, for purposes of inhaled delivery. This tool requires an accurate representation of the respiratory system, respiration and dose delivery attributes. The aim of this study is to develop a representative airway model of the Sprague-Dawley rat using static and dynamic micro-CT scans. The entire respiratory tract was modeled, from the snout and nares down to the central airways at the point where no distinction could be made between intraluminal air and the surrounding tissue. For the selection of the representative model, variables such as upper airway movement, segmentation length, airway volume and size are taken into account. Dynamic scans of the nostril region were used to illustrate the characteristic morphology of this region in anaesthetized animals. It could be concluded from this study that it was possible to construct a highly detailed representative model of a Sprague-Dawley rat based on imaging modalities such as micro-CT scans |
| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
New York, N.Y. |
Editor |
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| Language |
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Wos |
000265766000010 |
Publication Date |
2009-03-25 |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
1932-8486;1932-8494; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
| Impact Factor |
1.431 |
Times cited |
16 |
Open Access |
|
| Notes |
|
Approved |
Most recent IF: 1.431; 2009 IF: 1.490 |
| Call Number |
UA @ lucian @ c:irua:76455 |
Serial |
3342 |
| Permanent link to this record |
