title: Acoustic measurement of erythrocyte compressibility.
abstract: Adiabatic compressibility of red blood cells obtained from humans using a modified ultrasound velocity technique has been determined and correlated to the mean cellular hemoglobin concentration of the red blood cells. The ultrasound technique has an accuracy of better than 0.1% The results show a mean adiabatic compressibility of 34.814 X 10(-12) +/- 0.851 cm2/dyn for an average mean cellular hemoglobin concentration of 32.12 +/- 1.51 g%. The relationship between the MCHC and compressibility was investigated by suspending erythrocytes in saline of different NaCl concentrations. A correlation coefficient of 0.932 was obtained based on linear regression analysis.
mesh_terms: D000162:Acoustics; D004909:Erythrocyte Indices; D004912:Erythrocytes / Q000502:physiology*; D006801:Humans; D012044:Regression Analysis; D012965:Sodium Chloride; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography
chemical_list: D012965:Sodium Chloride