07 October 2025 : Clinical Research
Association of Frailty with Ultrasound Parameters of Diaphragm Function in 153 Elderly Individuals
Lianghuan Peng ABCDEF 1, Siping Zhu BCEF 1, Wei Lin BCD 1, Yunlu Sheng ABD 1, Peiwen Yu BEF 1, Guoxian Ding ACDEFG 1*DOI: 10.12659/MSM.947951
Med Sci Monit 2025; 31:e947951
Figure 2 Representative ultrasound images of diaphragm function in elderly patients(A) End-expiratory diaphragm thickness measured in M-mode using a 7–12 MHz linear probe at the 8th–10th intercostal space along the anterior axillary line. (B) End-inspiratory diaphragm thickness measured during maximal voluntary inspiration in the same intercostal location. (C) Diaphragmatic excursion assessed in M-mode using a 2–4 MHz convex probe placed below the right costal margin along the midclavicular line during deep breathing. The excursion is calculated based on the amplitude of diaphragm movement.