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Which technique seems to offer several advantages like light reproducibility and sensitivity?(a) NMR(b) Laser Doppler(c) Electromagnetic(d) UltrasonicI have been asked this question in examination.This intriguing question originated from PACS (Picture Archiving and Communication System) in division Telemedicine Technology of Biomedical Instrumentation

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Right answer is (b) Laser Doppler

To explain: Laser Doppler flowmetry is a non-invasive technique and SEEMS to offer several advantages like light reproducibility and sensitivity. However, its disadvantages like poor SELECTIVITY, baseline instability and restriction in a site of measurement are still LIMITING FACTORS in its SUCCESSFUL clinical utilization.



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