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Fig. 2 | BMC Pulmonary Medicine

Fig. 2

From: Diaphragmatic ultrasonography-based rapid shallow breathing index for predicting weaning outcome during a pressure support ventilation spontaneous breathing trial

Fig. 2

Diaphragm thickness (DT) measurement. a B-mode ultrasonography of the diaphragm in the zone of apposition. DT is a measurement of the muscle layer between the pleural layer and the peritoneal layer. b M-mode ultrasonography of the diaphragm in the zone of apposition. DT is measured at both end-inspiration (B) and end-expiration (A). In this image, diaphragm thickening fraction (DTF) was calculated as: 1.6 − 1.2/1.2 × 100% = 33.3%

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BMC Pulmonary Medicine

ISSN: 1471-2466

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