Quantification analysis of pleural line movement for the diagnosis of pneumothorax

Table 4 Variability of tissue Doppler imaging measurements

	PVmax	CVmax	PSmax	CSmax
Senior physician
Pneumothorax	0.87 (0.78, 0.93)	0.85 (0.73, 0.91)	0.84 (0.72, 0.91)	0.88 (0.79, 0.93)
Non-pneumothorax	0.88 (0.79, 0.93)	0.82 (0.59, 0.92)	0.85 (0.75, 0.92)	0.86 (0.77, 0.92)
Resident
Pneumothorax	0.75 (0.59, 0.87)	0.67 (0.47, 0.81)	0.64 (0.43, 0.79)	0.72 (0.48, 0.85)
Non-pneumothorax	0.79 (0.64, 0.88)	0.75 (0.48, 0.87)	0.72 (0.54, 0.84)	0.75 (0.59, 0.86)
Total
Pneumothorax	0.77 (0.65, 0.85)	0.73 (0.60, 0.83)	0.68 (0.54, 0.80)	0.80 (0.69, 0.89)
Non-pneumothorax	0.80 (0.69, 0.87)	0.75 (0.62, 0.85)	0.76 (0.64, 0.85)	0.74 (0.62, 0.84)

PV_max: Peak pleural line velocity; CV_max: Peak chest wall tissue velocity; PS_max: Peak pleural line strain value; CS_max: Peak chest wall tissue strain value.