[Analysis of the Doppler signal (color and pulsed) in hepatocarcinoma].
Real time echocardiography associated with pulsed Doppler (duplex) and color (triplex) provide a non invasive technique to determine the vascular morphology of a lesion. The duplex and triplex signal of 35 liver tumors, 23 hepatocarcinomas and 12 angiomas found in the first high frequency signals greater than 1.81 kHz and traced with pulsatile or mixed morphology (pulsed and continuous) were analyzed. The second signals were of low frequency, less than 1 kHz and continuous tracing. It may be concluded than echo-Doppler is a complementary technique to conventional echography and is useful in the diagnosis of hepatocellular carcinoma.
López Cano
A
A
Servicio de Aparato Digestivo, Hospital San Rafael, Cádiz.
Muñoz Benvenuty
A
A
Herrera
M D
MD
Lucero Paul
M I
MI
Méndez Pérez
C
C
Reyes Mellado
F
F
Moreno Sánchez
O
O
Pérez Jiménez
J
J
D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging*; D005069:Evaluation Studies as Topic; D006391:Hemangioma / Q000000981:diagnostic imaging; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008962:Models, Theoretical; D018615:Ultrasonography, Doppler, Color; D018617:Ultrasonography, Doppler, Pulsed