http://books.google.hu/books?id=uANsAAAAMAAJ&q="echo cloud" ...

Heart disease: a textbook of cardiovascular medicine - Volume 2 - Page 1013
books.google.com/books?id=gUlOAQAAIAAJ
Eugene Braunwald - 1984 - Snippet view - More editions
a textbook of cardiovascular medicine Eugene Braunwald. l FIGURE 29-70 Saline ... the same cardiac cycle. The echo cloud appears within the ventricle during diastole after complete opening of the mitral valve (after the mitral valve E point).

http://repub.eur.nl/res/pub/32100/820414_Meltzer, Richard St...

They found that serial injections gave
evidence of serial decreases in gas content unless
the injection apparatus was exposed to gases between
studies, and they concluded that "the origin
of the contrast echocardiography echo-cloud
appears to be microbubbles derived from small
gas pockets trapped at junctions within the injection
apparatus.''

Ez mintha gyakoribb lenne a (LA)SEC-re

Több szövegkörnyezetre van szükség a pontos fordításhoz, ennek hiányában ezeket a variációkat javaslom:
smokelike echo, echocardiographic (echogenic) haze / smoke

Részletekért lásd az alábbi cikket (képekkel) az American Heart Association folyóiratából:

Identification Of Echocardiographic “Smoke”
in a Bench Model With Transcranial Doppler Ultrasound
http://stroke.ahajournals.org/content/31/4/907.full
...The echocardiographic appearance of spontaneous contrast, or echocardiographic “smoke,” is recognized by mobile increased intensity of the blood within left and right heart chambers, great vessels, and veins...
Echogenic smoke was defined according to the previous description2 5 of (1) low-amplitude echogenic haze; (2) slow, repetitive movement in the cavity; and (3) dissipation and disappearance of the image when blood flow increases and reappearance as flow decreases....
Correlation of Smokelike Echo With Doppler Flow Velocity
In addition to echographic detection of smokelike signals, a pulsed-wave Doppler device was combined to record the Doppler flow velocity from the central part of outflow jet, the area in the presence of smokelike echo, and the area near the border of the chamber.....