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. 2020 Jul 7;12(7):2014. doi: 10.3390/nu12072014

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Duplex B-mode/pulsed wave Doppler (PWD) ultrasound of brachial artery flow-mediated dilation (FMD). This figure shows a long axis scan of brachial artery with simultaneous blood velocity profile by pulsed wave Doppler before (A) and after cuff deflation (B). For offline image analyses, a representative section of brachial artery is selected for an automated measurement of diameter. Baseline diameter (BSL) was averaged from a serial of recorded frames before cuff deflation and the maximum diameter was measured after cuff deflation during reactive hyperemia (RH).