Longitudinal Study of Helium-3 and Xenon-129 Magnetic Resonance Imaging
NCT ID: NCT02279329
Last Updated: 2024-06-13
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
200 participants
INTERVENTIONAL
2009-05-31
2025-02-28
Brief Summary
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Detailed Description
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Subjects will first provide written informed consent and then be screened for MRI compatibility and will complete: 1) Spirometry pre-salbutamol, SGRQ after inhaling 2-4 puffs (200-400μg) of the short-acting bronchodilator (eg. Salbutamol), 2) MRI, 3) CT. (Subjects will be taken by wheelchair to and from University Hospital, LHSC to decrease the potential for dynamic hyperinflation), 4) plethysmography and spirometry within 1 ½ hours of salbutamol. Vital signs will be performed. Because it is impossible to schedule imaging at the same time-point post-bronchodilator, subjects will be randomized to MR or CT 30 minutes post-salbutamol (1:1 ratio), to minimize bias.
Conditions
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Study Design
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NA
SINGLE_GROUP
BASIC_SCIENCE
NONE
Study Groups
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COPD and Bronchiectasis Patients
All enrolled COPD and Bronchiectasis patients will undergo Pulmonary Function Tests, Hyperpolarized Helium MRI, chest CT, 6-Minute Walk Test, and complete questionnaires at up to 8 visits over 2-3 years.
Hyperpolarized Helium MRI
Hyperpolarized helium-3 (3He) magnetic resonance imaging (MRI) has recently emerged as another research approach for the non-invasive measurement of lung structure and function, including conduction of gas through airways and into airspaces. Preliminary studies suggest that 3He MRI may be ideally suited for longitudinal COPD research, which is a likely target application of this novel technology. 3He MRI provides a complementary and alternative method for evaluating COPD and may be superior to CT because it allows simultaneous visualization of both airway and airspace structure and function.
Interventions
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Hyperpolarized Helium MRI
Hyperpolarized helium-3 (3He) magnetic resonance imaging (MRI) has recently emerged as another research approach for the non-invasive measurement of lung structure and function, including conduction of gas through airways and into airspaces. Preliminary studies suggest that 3He MRI may be ideally suited for longitudinal COPD research, which is a likely target application of this novel technology. 3He MRI provides a complementary and alternative method for evaluating COPD and may be superior to CT because it allows simultaneous visualization of both airway and airspace structure and function.
Eligibility Criteria
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Inclusion Criteria
* Subject understands the study procedures and is willing to participate in the study as indicated by signature on the informed consent
* Subject must be able to perform a breathhold for 16s.
* Subject is judged to be in otherwise stable health on the basis of medical history
* Subject is ambulatory and can perform the 6MWT
* Subject able to perform reproducible pulmonary function testing (i.e., the 3 best acceptable spirograms have FEV1 values that do not vary more than 5% of the largest value or more than 100 ml, whichever is greater.)
* FEV1 \>25% predicted
* FVC \> 25% predicted and \>0.5L
Exclusion Criteria
* Subject has a daytime room air oxygen saturation \<90% while lying supine.
* Patient is unable to perform spirometry or plethysmography maneuvers
* Patient is pregnant
* In the investigator's opinion, subject suffers from any physical, psychological or other condition(s) that might prevent performance of the MRI, such as severe claustrophobia.
* Subject has an implanted mechanically, electrically or magnetically activated device or any metal in their body which cannot be removed, including but not limited to pacemakers, neurostimulators, biostimulators, implanted insulin pumps, aneurysm clips, bioprosthesis, artificial limb, metallic fragment or foreign body, shunt, surgical staples (including clips or metallic sutures and/or ear implants.)
50 Years
85 Years
ALL
No
Sponsors
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London Health Sciences Centre
OTHER
Dr. Grace Parraga
OTHER
Responsible Party
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Dr. Grace Parraga
PhD, Scientist. Robarts Research Institute
Principal Investigators
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Grace E Parraga, PhD
Role: PRINCIPAL_INVESTIGATOR
Robarts Research Institute, The University of Western Ontario
Locations
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Robarts Research Institute; The University of Western Ontario; London Health Sciences Centre
London, Ontario, Canada
Countries
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Central Contacts
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Facility Contacts
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References
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Salerno M, de Lange EE, Altes TA, Truwit JD, Brookeman JR, Mugler JP 3rd. Emphysema: hyperpolarized helium 3 diffusion MR imaging of the lungs compared with spirometric indexes--initial experience. Radiology. 2002 Jan;222(1):252-60. doi: 10.1148/radiol.2221001834.
Evans A, McCormack D, Ouriadov A, Etemad-Rezai R, Santyr G, Parraga G. Anatomical distribution of 3He apparent diffusion coefficients in severe chronic obstructive pulmonary disease. J Magn Reson Imaging. 2007 Dec;26(6):1537-47. doi: 10.1002/jmri.21205.
Mathew L, Evans A, Ouriadov A, Etemad-Rezai R, Fogel R, Santyr G, McCormack DG, Parraga G. Hyperpolarized 3He magnetic resonance imaging of chronic obstructive pulmonary disease: reproducibility at 3.0 tesla. Acad Radiol. 2008 Oct;15(10):1298-311. doi: 10.1016/j.acra.2008.04.019.
Kooner HK, Wyszkiewicz PV, Matheson AM, McIntosh MJ, Abdelrazek M, Dhaliwal I, Nicholson JM, Kirby M, Svenningsen S, Parraga G. Chest CT Airway and Vascular Measurements in Females with COPD or Long-COVID. COPD. 2024 Dec;21(1):2394129. doi: 10.1080/15412555.2024.2394129. Epub 2024 Sep 2.
Sharma M, Wyszkiewicz PV, Matheson AM, McCormack DG, Parraga G. Chest MRI and CT Predictors of 10-Year All-Cause Mortality in COPD. COPD. 2023 Dec;20(1):307-320. doi: 10.1080/15412555.2023.2259224. Epub 2023 Sep 22.
Wyszkiewicz PV, Sharma M, Desaigoudar V, Cunningham IA, McCormack DG, Abdelrazek MA, Kirby M, Parraga G. Reduced Total Airway Count and Airway Wall Tapering after Three-Years in Ex-Smokers. COPD. 2023 Dec;20(1):186-196. doi: 10.1080/15412555.2023.2222831.
Capaldi DPI, Guo F, Xing L, Parraga G. Pulmonary Ventilation Maps Generated with Free-breathing Proton MRI and a Deep Convolutional Neural Network. Radiology. 2021 Feb;298(2):427-438. doi: 10.1148/radiol.2020202861. Epub 2020 Dec 8.
MacNeil JL, Capaldi DPI, Westcott AR, Eddy RL, Barker AL, McCormack DG, Kirby M, Parraga G. Pulmonary Imaging Phenotypes of Chronic Obstructive Pulmonary Disease Using Multiparametric Response Maps. Radiology. 2020 Apr;295(1):227-236. doi: 10.1148/radiol.2020191735. Epub 2020 Feb 25.
Other Identifiers
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ROB0018
Identifier Type: -
Identifier Source: org_study_id
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