Diaphragm and peripheral muscle thickness on ultrasound: Intra‐rater reliability and variability of a methodology using non‐standard recumbent positions

Abstract

This ultrasound technique has good reliability in recumbent positions, making it useful for application to clinical populations when the erect posture is not practical.

Ultrasonographic findings of the normal diaphragm: thickness and contractility

“…Other studies of reference values in smaller populations found mean diaphragm thickness to be 0.16-0.27 cm. [10][11][12] These differences may be secondary to the ethnic background of subjects or differences in ultrasound devices or technique.…”

Ultrasonography in the intensive care setting can be used to detect changes in the quality and quantity of muscle and is related to muscle strength and function

“…It can be performed at the bedside, is noninvasive, is inexpensive, shows good interobserver and intraobserver reliability [10,11], and is readily available in most hospitals [12]. Reliability for the measurement of quadriceps muscle thickness, and echogenicity have been demonstrated in individuals with critical illness in several recent studies [13][14][15].…”

A Review of the Ultrasound Assessment of Diaphragmatic Function in Clinical Practice

“…During contraction, this area shortens and thickens as a result of muscle contraction [58]. The physical dimensions of the appositional area and the configuration and motion of the dome of the diaphragm can be quantified by US as reported by several authors [22,23,24,26,27,30,32,41,49,50,60,61,62,63,64,65,66] (fig. 1; table 2).…”