Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment
Heart rate variability (HRV) is regularly assessed in neuroimaging studies as an indicator of autonomic, emotional or cognitive processes. In this study, we investigated the influence of a loud and cramped environment during magnetic resonance imaging (MRI) on resting HRV measures. We compared recor...
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MDPI AG
2021-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/22/7663 |
| _version_ | 1827675341423902720 |
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| author | Andy Schumann Stefanie Suttkus Karl-Jürgen Bär |
| author_facet | Andy Schumann Stefanie Suttkus Karl-Jürgen Bär |
| author_sort | Andy Schumann |
| collection | DOAJ |
| description | Heart rate variability (HRV) is regularly assessed in neuroimaging studies as an indicator of autonomic, emotional or cognitive processes. In this study, we investigated the influence of a loud and cramped environment during magnetic resonance imaging (MRI) on resting HRV measures. We compared recordings during functional MRI sessions with recordings in our autonomic laboratory (LAB) in 101 healthy subjects. In the LAB, we recorded an electrocardiogram (ECG) and a photoplethysmogram (PPG) over 15 min. During resting state functional MRI, we acquired a PPG for 15 min. We assessed anxiety levels before the scanning in each subject. In 27 participants, we performed follow-up sessions to investigate a possible effect of habituation. We found a high intra-class correlation ranging between 0.775 and 0.996, indicating high consistency across conditions. We observed no systematic influence of the MRI environment on any HRV index when PPG signals were analyzed. However, SDNN and RMSSD were significantly higher when extracted from the PPG compared to the ECG. Although we found a significant correlation of anxiety and the decrease in HRV from LAB to MRI, a familiarization session did not change the HRV outcome. Our results suggest that psychological factors are less influential on the HRV outcome during MRI than the methodological choice of the cardiac signal to analyze. |
| first_indexed | 2024-03-10T05:03:42Z |
| format | Article |
| id | doaj.art-00d34273524f4a8a94b7bda507133eb8 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T05:03:42Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-00d34273524f4a8a94b7bda507133eb82023-11-23T01:27:44ZengMDPI AGSensors1424-82202021-11-012122766310.3390/s21227663Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner EnvironmentAndy Schumann0Stefanie Suttkus1Karl-Jürgen Bär2Lab for Autonomic Neuroscience, Imaging and Cognition (LANIC), Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, 07740 Jena, GermanyLab for Autonomic Neuroscience, Imaging and Cognition (LANIC), Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, 07740 Jena, GermanyLab for Autonomic Neuroscience, Imaging and Cognition (LANIC), Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, 07740 Jena, GermanyHeart rate variability (HRV) is regularly assessed in neuroimaging studies as an indicator of autonomic, emotional or cognitive processes. In this study, we investigated the influence of a loud and cramped environment during magnetic resonance imaging (MRI) on resting HRV measures. We compared recordings during functional MRI sessions with recordings in our autonomic laboratory (LAB) in 101 healthy subjects. In the LAB, we recorded an electrocardiogram (ECG) and a photoplethysmogram (PPG) over 15 min. During resting state functional MRI, we acquired a PPG for 15 min. We assessed anxiety levels before the scanning in each subject. In 27 participants, we performed follow-up sessions to investigate a possible effect of habituation. We found a high intra-class correlation ranging between 0.775 and 0.996, indicating high consistency across conditions. We observed no systematic influence of the MRI environment on any HRV index when PPG signals were analyzed. However, SDNN and RMSSD were significantly higher when extracted from the PPG compared to the ECG. Although we found a significant correlation of anxiety and the decrease in HRV from LAB to MRI, a familiarization session did not change the HRV outcome. Our results suggest that psychological factors are less influential on the HRV outcome during MRI than the methodological choice of the cardiac signal to analyze.https://www.mdpi.com/1424-8220/21/22/7663heart rate variabilityautonomic nervous systemreproducibilityphotoplethysmogramelectrocardiogram |
| spellingShingle | Andy Schumann Stefanie Suttkus Karl-Jürgen Bär Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment Sensors heart rate variability autonomic nervous system reproducibility photoplethysmogram electrocardiogram |
| title | Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment |
| title_full | Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment |
| title_fullStr | Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment |
| title_full_unstemmed | Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment |
| title_short | Estimating Resting HRV during fMRI: A Comparison between Laboratory and Scanner Environment |
| title_sort | estimating resting hrv during fmri a comparison between laboratory and scanner environment |
| topic | heart rate variability autonomic nervous system reproducibility photoplethysmogram electrocardiogram |
| url | https://www.mdpi.com/1424-8220/21/22/7663 |
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