Comparing the Perfusion and Functional Assessment Capabilities of Electrocardiography- and Photoplethysmography-monitored Phase-resolved Functional Lung and Dynamic Contrast-enhanced Perfusion MR Imaging

Yoshiyuki Ozawa; Alicia Palomar-García; Masanori Ozaki; Masao Yui; Maiko Shinohara; Natsuka Yazawa; Kaori Yamamoto; Yuichiro Sano; Masato Ikedo; Takahiro Ueda; Masahiko Nomura; Takeshi Yoshikawa; Daisuke Takenaka; Yoshiharu Ohno

doi:10.2463/mrms.mp.2025-0201

January 1, 2026Magnetic Resonance in Medical SciencesOpen Access

Comparing the Perfusion and Functional Assessment Capabilities of Electrocardiography- and Photoplethysmography-monitored Phase-resolved Functional Lung and Dynamic Contrast-enhanced Perfusion MR Imaging

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Key Points

The study aims to evaluate and compare the effectiveness of ECG- and PPG-monitored MRI techniques for assessing lung perfusion and function in cancer patients.
Conducted assessments using electrocardiography and photoplethysmography during MRI scans.
Evaluated regional perfusion and changes in pulmonary function among thoracic oncologic patients.
Utilized phase-resolved functional lung MRI and dynamic contrast-enhanced perfusion MRI.
ECG- and PPG-monitored MRI showed differences in the accuracy of perfusion measurements.
Assessments revealed distinct profiles in regional lung function changes between the two monitoring methods.
Findings suggest potential implications for improved diagnostic capabilities in lung cancer.

Implication

Compares functional lung assessments in oncologic patients using two MRI techniques, implying better patient monitoring options.

Abstract

Purpose: The present study directly compared the quantitative capabilities of regional perfusion and pulmonary functional change assessments among electrocardiography (ECG)- and photoplethysmography (PPG)-monitored phase-resolved functional lung (PREFUL) MRI and dynamic contrast-enhanced (CE) perfusion MRI in thoracic oncologic patients.

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Cite This Study

Ozawa et al. (2026) studied this question.

synapsesocial.com/papers/69db36a04fe01fead37c4969 https://doi.org/10.2463/mrms.mp.2025-0201

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Comparing the Perfusion and Functional Assessment Capabilities of Electrocardiography- and Photoplethysmography-monitored Phase-resolved Functional Lung and Dynamic Contrast-enhanced Perfusion MR Imaging

Key Points

Implication

Abstract

Discussion

Cite This Study

Comparing the Perfusion and Functional Assessment Capabilities of Electrocardiography- and Photoplethysmography-monitored Phase-resolved Functional Lung and Dynamic Contrast-enhanced Perfusion MR Imaging

Key Points

Implication

Abstract

Discussion

Cite This Study

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