Optical diagnosis of interstitial cystitis / painful bladder syndrome

Background: Painful bladder syndrome/interstitial cystitis (PBS/IC) is defined as a syndrome of urgency, frequency, and suprapubic pain in the absence of positive urine culture or obvious bladder pathology. As no specific etiology has been identified …

Towards Biometric Person Identification using fNIRS

We investigate the potential of using fNIRS signals for biometric person identification. Independent sessions for training and testing have been recorded using 8 channels of frontal fNIRS. We extract logarithmic power spectral densities as features …

Measuring workload using a combination of electroencephalography and near infrared spectroscopy

The ability to continuously monitor workload in a real-world environment would have important implications for the offline design of human machine interfaces as well as the real-time improvement of interaction between humans and machines. We explored …

Monitoring of lower urinary tract function in patients with spinal cord injury using near infrared spectroscopy

Background: One of the most important conditions where there is loss of normal bladder function is spinal cord injury (SCI). Currently, evaluation of bladder function is limited to periodic invasive urodynamic testing (UDS). The purpose of this study …

Attenuation of motion artifact in near infrared spectroscopy signals using a wavelet based method

The sensitivity of Near Infrared Spectroscopy (NIRS) signals to motion artifact can limit practical applications of NIRS monitoring. We describe a wavelet based method for removing motion artifact from NIRS signals. This method was tested on …

Do radio frequencies of medical instruments common in the operating room interfere with near-infrared spectroscopy signals?

Background:Medical and diagnostic applications of near infrared spectroscopy (NIRS) areincreasing, especially in operating rooms (OR). Since NIRS is anoptical technique, radio frequency (RF) interference from other instruments isunlikely to affect …

Near-infrared spectroscopy of the bladder: a new technique for studying lower urinary tract function in health and disease

Background: Continuous wave near-infrared spectroscopy (NIRS) can monitor chromophore change in the bladder detrusor muscle during voiding; oxygenation and hemodynamic data derived differ in health and disease. Application of wireless NIRS for …

<title>Real-time noninvasive optical imaging of exercising muscle and brain upon cognitive stimuli</title>

The monitoring of a single muscle location does not reflect the heterogeneity of the muscle groups activation during exercise. In the past, measurements of oxygen consumption (VO2) at single muscle locations could be carried out non-invasively by …

<title>New and highly sensitive continuous-wave near-infrared spectrophotometer with multiple detectors</title>

For a long time continuous wave near infrared instruments have been used to detect oxygenation changes in tissue. These instruments have proven to be reliable. The new generation of instruments, such as phase-modulated systems, or time-of-flight …

<title>Detailed evidence of cerebral hemoglobin oxygenation changes in response to motor cortical activation revealed by a continuous-wave spectrophotometer with 10-Hz temporal resolution</title>

In the last four years near infrared spectroscopy (NIRS) has been used in cerebral functional activation studies to monitor changes in concentration of oxy-, deoxy- and total hemoglobin ([O 2 Hb], [HHb] and [tHb] respectively) in response to …