ultrasound artifacts

gallbladder

with gallstone in sonography

editAbdominal

ultrasonography in the axial plane, between the xiphoid process and the navel, of a 38 year old woman who has developed diastasis recti after pregnancy. It shows a distance of 3.5 cm between the rectus abdominis muscles (distance between the crosses), but no hernia through the linea alba.

Rv-

Reverberationen, ausgelöst durch ungenügende Ankopplung der Ultraschallsonde

Prinzipbedingte

sonographische Artefakte. Gb-Gallenblase. SV-distale Schallverstärkung; SA-distale Schallauslöschung; LS-lateral shadowing

Kometenschweifartefakt

(Ks) hinter Dünndarmschlinge

Ultrasound

images of aorta duplication artifact. A refraction artifact which results from the difference in the velocity of sound between muscle tissue and fat tissues.

editAbdominal

ultrasonography of an 83 year old man who experienced biliary colic two weeks prior.It shows a gallbladder wall that is almost pathologically thickened, at 3 mm. However, there is no apparent edema in the pericholecystic fat. The gallbladder contains biliary sludge, as well as gallstones, which create acoustic shadowing. There is thus gallstones without current cholecystitis. Without annotations Annotated raster (.jpg) Annotated vector (.svg)

Staghorn

calculi filling the entire collecting system and creating pronounced shadowing. For context, see en:Renal ultrasonography