Measurement of ultrasonic velocity and attenuation in bone tumors, in vitro.
Ultrasonic velocity and attenuation are determined in different types of bone tumors by using a double-probe-through-transmission ultrasonic technique. The average values of propagation velocity in different types of tumors are found as 2106, 2304, 2677.5, and 3586 m/s with 1.49%, 1.04%, and 0.74% standard deviation in Giant Cell, Lymphoma, Chondro Sarcoma, and Osteogenic Sarcoma, respectively. Absorption coefficient of ultrasound is found to be minimum as 19.7 dB/cm with 0.002% standard deviation in Lymphoma, and high in Osteochondroma and not measurable with the present setup. A direct technique for the diagnosis and differentiation of various types of tumors can be developed by standardization of the data.
National Physical Laboratory, New Delhi, India.
V R
VR
Singh
S
S
Yadav
A
A
Ahmed
R K
RK
Misurya
G A
GA
Raj
A
A
Sural
G K
GK
Viswakarma
D001859:Bone Neoplasms / Q000175:diagnosis*; D002277:Carcinoma / Q000175:diagnosis*; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis*; D014463:Ultrasonography