Asthma Clinical Trial
Official title:
Developing Optimal Parameters for Hyperpolarized Noble Gas (3He and 129Xe) and Inert Fluorinated Gas Magnetic Resonance Imaging of Lung Disorders
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.
Status | Recruiting |
Enrollment | 160 |
Est. completion date | December 22, 2023 |
Est. primary completion date | December 22, 2023 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | 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. |
Country | Name | City | State |
---|---|---|---|
Canada | Thunder Bay Regional RI | Thunder Bay | Ontario |
Lead Sponsor | Collaborator |
---|---|
Thunder Bay Regional Health Research Institute | Lakehead University, St. Joseph's Care Group, Thunder Bay Regional Health Sciences Centre |
Canada,
Couch 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. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Signal to Noise Ratio | The primary objective of this study is to determine an optimized set of scan parameters that will produce clear, anatomically and clinically relevant images of the lungs for healthy participants and various types of lung disorder participants, and using one or more gas type (3He, 129Xe, PFP, SF6). | 2 years | |
Secondary | Correlation with PFTs | The secondary objective of this study is to correlate the results with PFTs, including spirometry and plethysmography. | 2 years |
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