1. Noninvasive hemoglobin sensing and imaging: optical tools for disease diagnosis

    Noninvasive hemoglobin sensing and imaging: optical tools for disease diagnosis

    Significance: Measurement and imaging of hemoglobin oxygenation are used extensively in the detection and diagnosis of disease; however, the applied instruments vary widely in their depth of imaging, spatiotemporal resolution, sensitivity, accuracy, complexity, physical size, and cost. The wide variation in available instrumentation can make it challenging for end users to select the appropriate tools for their application and to understand the relative limitations of different methods. Aim: We aim to provide a systematic overview of the field of hemoglobin imaging and sensing. Approach: We reviewed the sensing and imaging methods used to analyze hemoglobin oxygenation, including pulse oximetry, spectral ...

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