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Abstract #0231

Assessing Ventilation and Gas Exchange of Lung Transplant Recipients with Hyperpolarized Xenon-129

Faraz Amzajerdian1, Hooman Hamedani1, Andrew Courtwright1, Luis Loza1, Mostafa Ismail1, Kai Ruppert1, Stephen Kadlecek1, and Rahim Rizi1
1University of Pennsylvania, Philadelphia, PA, United States

Synopsis

Keywords: Hyperpolarized MR (Gas), Hyperpolarized MR (Gas)

Motivation: Improving the diagnosis and monitoring of chronic lung allograft dysfunction (CLAD) post-lung transplantation may lead to improved long-term patient outcomes.

Goal(s): To identify hyperpolarized xenon-129 imaging markers for more comprehensively evaluating lung function in transplant recipients.

Approach: A multi-breath xenon-polarization transfer contrast (XTC) technique was used to quantify ventilation and gas exchange longitudinally in lung transplant patients.

Results: Correlations between the derived imaging metrics and current clinical standards for assessing lung function provided additional insight into the functional changes associated with post-transplant recovery or decline.

Impact: Hyperpolarized xenon-129 MRI enables more comprehensive assessments of the functional and physiological changes associated with recovery and/or deterioration after lung transplantation, potentially leading to earlier CLAD diagnosis and improved long-term outcomes.

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