Abstract
Microbubble formation and its presence in circulation is a result of the gas release from the saturated tissues during the ascent. The presence and amount of the microbubbles is associated with the risk of decompression accident.
Therefore, the detection of microbubbles has increased clinical significance. Microbubbles are detected using sonographic techniques: transcranial Doppler technique is useful method for screening of the shunt circulation, echocardiography (2D, 3D and Doppler modalities) can precisely evaluate the presence and clinical significance of even small shunts, and transesophageal echocardiography represents gold standard for confirmation and hemodynamic evaluation of the intracardiac shunts.