View clinical trials related to Optical Imaging.
Filter by:This is a prospective study aiming to establish near-infrared autofluorescence technology and PTH test strip as a standardized process for finding and identifying parathyroid glands in thyroid surgery.
This study aims to evaluate brain injuries and brain edema with non-contact DCS-Speckle multi-parameter imager.
The purpose of this study is to predict the outcome of peripheral revascularization surgery by use of a new technology developed by our team, Pulse Wave Velocity imaging (PWVI), which has the capability to detect pulse transit time (PTT), and pulse wave velocity (PWV). This PWVI will be compared against known gold standards pre and post lower extremity limb revascularization and used to evaluate outcomes. Specifically, is leg PWV different among those with or without PAD, and is leg PWV different among those who undergo revascularization surgery and those who do not? This study represents the first clinical pilot study of the device with the aim to expand study participant numbers in future research and to eventually develop a PAD screening tool. This would be the first of its kind ever described.
The purpose of this study was to evaluate the applicability of auto-fluorescence imaging system to detect and quantify caries and dental plaque. Participants were advised to rinse their mouth with distilled water to exclude any chance of fluorescence from food debris. A well trained physicist majored in optical spectroscopy captured auto-fluorescence images of buccal aspects of two maxillary central incisors and occlusal aspects of four first molars from each patient in a dark room. Then they chewed a disclosing agent to assess the Quigley Hein plaque index modified by Turesky of each tooth. Furthermore, participants were also required to brush their teeth for 3min, then International Caries Detection and Assessment System（ICDAS）codes of relevant teeth to evaluate degrees of caries were recorded by an experienced dentist using a mouth mirror and explorer. The Spearman rank correlation coefficient between colorimetric parameters of fluorescence image and the plaque index and ICDAS code were calculated to evaluate the sensitivity and specificity of auto-fluorescence imaging system.
To assess the feasibility of a new neuromonitoring system (NeMoSystem including NeMo Probe and NeMo Patch) and the accuracy of the measurement values (cerebral blood flow (CBF); cerebral blood volume (CBV)) obtained.