Detailing renal hemodynamics and oxygenation in rats by a combined near-infrared spectroscopy and invasive probe approach.

Correlation of intraoperative renal near infrared spectroscopy with the development of acute kidney injury in adult patients undergoing cardiac surgery using cardiopulmonary bypass

Introduction: The present study aimed to correlate renal oximetry near-infrared spectroscopy (NIRS) values with conventional non-invasive biomarkers for the early detection of acute kidney injury (AKI) in adult patients undergoing cardiac surgery using cardiopulmonary bypass (CPB). Accordingly, renal NIRS can be employed as a trending device for the prevention of AKI developmen...

Application of Near-Infrared Spectroscopy for the Evaluation of Placental Oxygenation

Aims: As the utero-placental circulation have major impact on the fetus, and the placental function can be critical for determining fetal conditions, the placental oxygenation status was investigated. Methods: Near-infrared spectroscopy (NIRS) is a non-invasive technique used for the evaluation of regional tissue oxygenation in a number of organs. The trans-abdominal NIRS was developed as a non...

The evolution of near infrared spectroscopy in urology

In the 50 year history of NIRS, biomedical applications in urology are recent. This review summarizes technical advances and novel enquiry that have led to hemodynamic monitoring of the testis, measures of renal function, evaluation of the pelvic floor in women, and interrogation of the bladder. An overview is given of how bladder spectroscopy has evolved and the evidence that non-invasive tran...

Design and fabrication of non-invasive blood glucose sensor using pulse width modulation (PWM) technique and analysis of first harmonic amplitude of near infrared spectroscopy

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Near infrared spectroscopy for assessing oxygenation and hemodynamics in the upper extremities of healthy subjects and patients with work-related muscle pain