A study of high frequency ultrasound scattering from non-nucleated biological specimens.
The high frequency backscatter from cells with a nucleus to cell volume ratio of 0.50 cannot be adequately modeled as a homogeneous sphere. It was hypothesized that the cytoplasm of such cells is of fluid nature. This work attempts to model the ultrasound backscatter (10-62 MHz) from some non-nucleated biological specimens. This was done by measuring the backscatter response from individual sea urchin oocytes and comparing it to theoretical predictions in both the time and frequency domains. A good agreement was found between the experimental and theoretical results suggesting that the non-nucleated oocytes are of fluid nature.
Falou
Omar
O
Baddour
Ralph E
RE
Nathanael
George
G
Czarnota
Gregory J
GJ
Kumaradas
J Carl
JC
Kolios
Michael C
MC
D000818:Animals; D001826:Body Fluids / Q000502:physiology; D002468:Cell Physiological Phenomena; D003593:Cytoplasm / Q000502:physiology*; D005260:Female; D009865:Oocytes / Q000502:physiology*; D012542:Scattering, Radiation; D012617:Sea Urchins; D014465:Ultrasonics