Clinical trial · Interventional
Developing Optimal Parameters for Hyperpolarized Noble Gas and Inert Fluorinated Gas MRI of Lung Disorders
Developing Optimal Parameters for Hyperpolarized Noble Gas (3He and 129Xe) and Inert Fluorinated Gas Magnetic Resonance Imaging of Lung Disorders
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): Funding is no longer available due to the failure to enroll the target number of participants within the required timeframe.
Summary
Brief summary (as posted)
The goal of this research is to optimize the MRI system to obtain ideal lung images using Hyperpolarized (HP) Noble and Inert Fluorinated Gases as contrast agents. Lung coils tuned to the frequencies of these gases will be used. This study will take place at TBRHSC in the Cardiorespiratory Department and in the Research MRI facility.
Conditions
Conditions (19)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Asbestosis | — | UNRESOLVED | — |
| Asthma | — | UNRESOLVED | — |
| Bronchiectasis | — | UNRESOLVED | — |
| Chronic Obstructive Pulmonary Disease | — | UNRESOLVED | — |
| Cold Virus | — | UNRESOLVED | — |
| Cystic Fibrosis | — | UNRESOLVED | — |
| Emphysema | — | UNRESOLVED | — |
| Interstitial Lung Disease | — | UNRESOLVED | — |
| Lung Cancer | Malignant Lung Neoplasm | CURATED_EXACT | 0.92 |
| Lung Infection |
Interventions
Interventions (7)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| 129Xe Small and Large Human Lung Coil | Device | — | UNRESOLVED |
| 3He Human Lung Coil | Device | — | UNRESOLVED |
| HP 129Xe | Drug | — | UNRESOLVED |
| HP 3He | Drug | — | UNRESOLVED |
| PFP | Drug | — | UNRESOLVED |
| PFP and SF6 Human Lung Coil | Device | — | UNRESOLVED |
| SF6 | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Healthy Participants
- description
- Participants will inhale investigational gases (HP 3He, HP 129Xe, PFP and SF6) according to the procedure for that intervention. All participants can potentially inhale all the gases. Magnetic resonance imaging will be performed during breath-holds or continuous breathing (gas-dependent) with the appropriate investigational human lung coil (3He Human Lung Coil, 129Xe Small and Large Human Lung Coil, or PFP and SF6 Human Lung Coil), using the 3T Research MRI at the Thunder Bay Regional Health Sciences Centre.
- interventionNames
- Drug: HP 3He
- Drug: HP 129Xe
- Drug: PFP
- Drug: SF6
- Device: 129Xe Small and Large Human Lung Coil
- Device: 3He Human Lung Coil
- Device: PFP and SF6 Human Lung Coil
- type
- EXPERIMENTAL
- label
- Lung Disorder Participants
- description
- Participants will inhale investigational gases (HP 3He, HP 129Xe, PFP and SF6) according to the procedure for that intervention. All participants can potentially inhale all the gases. Magnetic resonance imaging will be performed during breath-holds or continuous breathing (gas-dependent) with the appropriate investigational human lung coil (3He Human Lung Coil, 129Xe Small and Large Human Lung Coil, or PFP and SF6 Human Lung Coil), using the 3T Research MRI at the Thunder Bay Regional Health Sciences Centre.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Is either: 1. A healthy volunteer (i.e.: someone not diagnosed with a lung disorder written below; this may include smokers who have not been diagnosed with a lung disorder) or 2. Has been diagnosed with one of the following respiratory disorders: lung transplants, lung resection, lung cancer, asthma, cystic fibrosis, chronic obstructive pulmonary disease, emphysema, mesothelioma, asbestosis, pulmonary embolism, interstitial lung disease, pulmonary fibrosis, bronchiectasis, seasonal allergies, pneumonia, cold virus, lung infection, pulmonary hypertension, pulmonary dysplasia, obstructive sleep apnea * Able to provide informed consent * Able to hold their breath for imaging: 1. Healthy volunteers enrolled in this study must be able to hold their breath for 25 seconds 2. Lung disorder participants must be able to hold their breath for 15 seconds Exclusion Criteria: * Have contraindication to MR imaging (i.e. ferrous implants, cardiac pacemakers) - determined by MR screening prior to scans. * Have a history of claustrophobia. * Female exclusion only: are or may be pregnant. * Requires an oxygen mask and cannot use a nasal cannula. * Blood oxygen saturation is below 92% (measured at rest in a sitting position, and with an O2 nasal cannula if the participant normally uses one). * Has had an acute respiratory infection in the past 10 days. * Is a student currently enrolled in a course at Lakehead University where the Principal Investigator (PI) is the instructor. * Is a student currently enrolled in a degree program at Lakehead University where the PI is their direct thesis supervisor. * Is currently an employee of the PI at the Thunder Bay Regional Research Institute (TBRRI) and/or Lakehead University.
References
Publications (3)
- BACKGROUNDCouch MJ, Blasiak B, Tomanek B, Ouriadov AV, Fox MS, Dowhos KM, Albert MS. Hyperpolarized and inert gas MRI: the future. Mol Imaging Biol. 2015 Apr;17(2):149-62. doi: 10.1007/s11307-014-0788-2. PMID 25228404
- RESULTKooner HK, McIntosh MJ, Matheson AM, Venegas C, Radadia N, Ho T, Haider EA, Konyer NB, Santyr GE, Albert MS, Ouriadov A, Abdelrazek M, Kirby M, Dhaliwal I, Nicholson JM, Nair P, Svenningsen S, Parraga G. 129Xe MRI ventilation defects in ever-hospitalised and never-hospitalised people with post-acute COVID-19 syndrome. BMJ Open Respir Res. 2022 May;9(1):e001235. doi: 10.1136/bmjresp-2022-001235. PMID 35584850
- RESULTMatheson AM, McIntosh MJ, Kooner HK, Lee J, Desaigoudar V, Bier E, Driehuys B, Svenningsen S, Santyr GE, Kirby M, Albert MS, Shepelytskyi Y, Grynko V, Ouriadov A, Abdelrazek M, Dhaliwal I, Nicholson JM, Parraga G. Persistent 129Xe MRI Pulmonary and CT Vascular Abnormalities in Symptomatic Individuals with Post-acute COVID-19 Syndrome. Radiology. 2022 Nov;305(2):466-476. doi: 10.1148/radiol.220492. Epub 2022 Jun 28. PMID 35762891