Trial reportScientific reports2022
Imaging photoplethysmography as an easy-to-use tool for monitoring changes in tissue blood perfusion during abdominal surgery.
Trial report in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.
- The role of indocyanine green fluorescence angiography in the perioperative period for patients after colorectal surgery: a meta-analysis of propensity score-matched studies with trial sequential analysis.Surgical endoscopy · 2025Pooled it
- Artificial Intelligence Enabled Diagnostics Using Photoplethysmography (PPG): Beyond SpOLife (Basel, Switzerland) · 2026Review
- EPI-Sense: an integrated hemodynamic sensing and analysis system for early pressure injury warning.Journal of translational medicine · 2026Article
- Imaging photoplethysmography reveals differences in the reactions of cerebral and systemic hemodynamics to infusion of vasoactive drugs.Frontiers in physiology · 2026Article
- A comprehensive review of heart rate measurement using remote photoplethysmography and deep learning.Biomedical engineering online · 2025Review
- Deep learning and remote photoplethysmography powered advancements in contactless physiological measurement.Frontiers in bioengineering and biotechnology · 2024Review
- Video-based sympathetic arousal assessment via peripheral blood flow estimation.Biomedical optics express · 2023Article
- The 2023 wearable photoplethysmography roadmap.Physiological measurement · 2023Review
- Intra-abdominal laparoscopic assessment of organs perfusion using imaging photoplethysmography.Surgical endoscopy · 2023Article
- Random matrix-based laser speckle contrast imaging enables quasi-3D blood flow imaging in laparoscopic surgery.Biomedical optics express · 2023Article
- Continuous intraoperative perfusion monitoring of free microvascular anastomosed fasciocutaneous flaps using remote photoplethysmography.Scientific reports · 2023Article
- Intraoperative visualization and quantitative assessment of tissue perfusion by imaging photoplethysmography: comparison with ICG fluorescence angiography.Biomedical optics express · 2022Article
- Imaging PPG for In Vivo Human Tissue Perfusion Assessment during Surgery.Journal of imaging · 2022Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
Abstract
Evaluation of tissue perfusion at various stages of surgery is of great importance for the implementation of the concept of safe surgery, including operations on the abdominal organs. Currently, there is no accurate and reliable intraoperative method for assessing tissue perfusion that could help surgeons determine the risks of ischemia and improve outcomes. We propose novel method of intraoperative assessment of tissue perfusion using video camera synchronized with the electrocardiogram. The technique is referred to as imaging photoplethysmography (iPPG). It can be used continuously for monitoring blood supply to organs e.g., before and after anastomosis. In our study, we followed 14 different surgical cases (four stomach and ten colorectal cancers) requiring reconstruction of various organs with anastomosis. With iPPG, intraoperative blood perfusion was successfully visualized and quantified in all 14 patients under study. As most indicative, here we describe in detail two clinical demonstrations during gastrectomy for gastric cancer and right-sided hemicolectomy for cancer of the ascending colon. Feasibility of the iPPG system to assess blood perfusion in organs before and after anastomosis during open surgery was demonstrated for the first time.
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Registered trials
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