Colored Doppler supersonic image formation

April 19th, 2008 Guage

The colored Doppler supersonic blood flow diagram (CDF) called the colored Doppler ultrasonoscopy (CDI), it obtains the echo sources of information and frequency spectrum Doppler are consistent, the blood stream distribution and the direction assume the two dimensional display, the different speed leaves by the different color. The double merit Doppler supersonic system, is the B supersonic image display blood vessel’s position. Doppler surveys the blood stream, this kind of B and Doppler system’s binding energy locate any specific blood vessel precisely.　　1. the blood stream direction in frequency spectrum Doppler demonstrates, by zero baseline discrimination blood stream direction. Shows the blood stream above zero baseline to flow to the probe head, below zero baseline shows the blood stream to leave the probe head. In CDI, asked by the color coding expression blood stream side that red or the decadent chromatograph expressed the blood stream flows to the probe head (hot color); But by blue color or cyan color chromatograph expression blood stream wandering probe head (cool color).

　　2. the blood vessel distributes in the CDI demonstration blood vessel lumen the blood stream, thus belongs to the flow channel demonstration, it cannot demonstrate the blood vessel wall and the external coat periplast.

　　3. the distinction cancer tubercle’s blood vessel type may carry on the classification with CDI to liver cancer tubercle blood vessel. Differentiates it for the tubercle week regarding the blood vessel, to give the festival posterior margin arc blood vessel. The tubercle exile blood vessel, the tubercle internal blood vessel and the tubercle flow out the blood vessel and so on.

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Entry Filed under: Liver Cancer

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