Peripheral Hemodynamics Estimation Using the Photoplethysmography Method
Diabetes is known to reduce blood circulation in capillaries and arterioles; however, no devices can easily measure this on a daily basis. In this study, we developed a tool for measuring finger photoplethysmograms using green light and near-infrared LEDs. Thereafter, photoplethysmography was conduc...
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MDPI AG
2024-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/24/7882 |
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| author | Toru Shimuta Kaname Hanada Kazuteru Ryu Koichi Idei Nobuyuki Kanai |
| author_facet | Toru Shimuta Kaname Hanada Kazuteru Ryu Koichi Idei Nobuyuki Kanai |
| author_sort | Toru Shimuta |
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| description | Diabetes is known to reduce blood circulation in capillaries and arterioles; however, no devices can easily measure this on a daily basis. In this study, we developed a tool for measuring finger photoplethysmograms using green light and near-infrared LEDs. Thereafter, photoplethysmography was conducted on 25 inpatients/outpatients with diabetes and 21 adult males and females who had not been diagnosed with or treated for diabetes, hypertension, or cardiovascular disease (control group). In patients with diabetes, the inverse full width at half-maximum velocity plethysmogram tended to be smaller than that in the control group, and the delay in the green light a-wave peak relative to the near-infrared light a-wave peak in the acceleration plethysmogram was significantly increased. The results suggest that peripheral hemodynamics can be easily estimated at home using a photoplethysmography device mounted on a ring-wearable device. |
| format | Article |
| id | doaj-art-697c3a4c69594d7a83e9cfdeecb81c59 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-697c3a4c69594d7a83e9cfdeecb81c592025-08-20T02:01:19ZengMDPI AGSensors1424-82202024-12-012424788210.3390/s24247882Peripheral Hemodynamics Estimation Using the Photoplethysmography MethodToru Shimuta0Kaname Hanada1Kazuteru Ryu2Koichi Idei3Nobuyuki Kanai4Minato MIRAI Innovation Center, Murata Manufacturing Co., Ltd., 4-3-8, Minatomirai, Nishi-ku, Yokohama-shi 220-0012, JapanMinato MIRAI Innovation Center, Murata Manufacturing Co., Ltd., 4-3-8, Minatomirai, Nishi-ku, Yokohama-shi 220-0012, JapanOrthopedic Surgery, Kanai Hospital, 612-12, Yodokizu-cho, Fushimi-ku, Kyoto 613-0911, JapanOrthopedic Surgery, Kanai Hospital, 612-12, Yodokizu-cho, Fushimi-ku, Kyoto 613-0911, JapanInternal Medicine, Kanai Hospital, 612-12, Yodokizu-cho, Fushimi-ku, Kyoto 613-0911, JapanDiabetes is known to reduce blood circulation in capillaries and arterioles; however, no devices can easily measure this on a daily basis. In this study, we developed a tool for measuring finger photoplethysmograms using green light and near-infrared LEDs. Thereafter, photoplethysmography was conducted on 25 inpatients/outpatients with diabetes and 21 adult males and females who had not been diagnosed with or treated for diabetes, hypertension, or cardiovascular disease (control group). In patients with diabetes, the inverse full width at half-maximum velocity plethysmogram tended to be smaller than that in the control group, and the delay in the green light a-wave peak relative to the near-infrared light a-wave peak in the acceleration plethysmogram was significantly increased. The results suggest that peripheral hemodynamics can be easily estimated at home using a photoplethysmography device mounted on a ring-wearable device.https://www.mdpi.com/1424-8220/24/24/7882peripheral hemodynamicsphotoplethysmography devicering-wearable devicefinger photoplethysmogramphotoplethysmography method |
| spellingShingle | Toru Shimuta Kaname Hanada Kazuteru Ryu Koichi Idei Nobuyuki Kanai Peripheral Hemodynamics Estimation Using the Photoplethysmography Method Sensors peripheral hemodynamics photoplethysmography device ring-wearable device finger photoplethysmogram photoplethysmography method |
| title | Peripheral Hemodynamics Estimation Using the Photoplethysmography Method |
| title_full | Peripheral Hemodynamics Estimation Using the Photoplethysmography Method |
| title_fullStr | Peripheral Hemodynamics Estimation Using the Photoplethysmography Method |
| title_full_unstemmed | Peripheral Hemodynamics Estimation Using the Photoplethysmography Method |
| title_short | Peripheral Hemodynamics Estimation Using the Photoplethysmography Method |
| title_sort | peripheral hemodynamics estimation using the photoplethysmography method |
| topic | peripheral hemodynamics photoplethysmography device ring-wearable device finger photoplethysmogram photoplethysmography method |
| url | https://www.mdpi.com/1424-8220/24/24/7882 |
| work_keys_str_mv | AT torushimuta peripheralhemodynamicsestimationusingthephotoplethysmographymethod AT kanamehanada peripheralhemodynamicsestimationusingthephotoplethysmographymethod AT kazuteruryu peripheralhemodynamicsestimationusingthephotoplethysmographymethod AT koichiidei peripheralhemodynamicsestimationusingthephotoplethysmographymethod AT nobuyukikanai peripheralhemodynamicsestimationusingthephotoplethysmographymethod |