University of Kansas Medical Center
In this study, xenon MRI will be used to evaluate regional functional consequences of mucus plugs in the lungs of patients with muco-obstructive pulmonary disease. Mucus plugs will be identified using CT imaging, and xenon MRI will be used to evaluate ventilation and gas exchange impairments in regions of the lungs corresponding to the airways downstream of mucus plugs.
Inclusion Criteria: * Adequate completion of informed consent process with written documentation * Patients 18 - 65 years old * • Physician diagnosis of muco-obstructive pulmonary disease, including cystic fibrosis, severe asthma, chronic obstructive pulmonary disease, or non-cystic fibrosis bronchiectasis for \> 1 year * Able to perform reproducible spirometry according to ATS criteria based on clinical PFTs. Exclusion Criteria: * Respiratory tract infection within the 4 weeks prior to Visit 1 * Body mass index (BMI) \> 30 at Visit 1 * One-time doses such as intra-articular injections requ…
Xenon gas contrast agent for MRI
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