A novel methodology for measuring global diaphragm thickness by ultrasonography in patients with critical illness: an exploratory pilot study

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Chen-Liang Sun, Si-Ping Zhou, Li-Sha Hou, Meng-Jie Zhan, Yi-Ping Wang, Hong-Sheng Zhao, Feng-Mei Guo, Guang-Quan Zhou

Published: 2025, Last Modified: 27 Feb 2026BMC Medical Imaging 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: A global diaphragm thickness measurement technique was developed for the zone of apposition (ZOA) using an image edge identification approach. The method was assessed in terms of its repeatability and reliability when applied in patients with critical illness.