Transcranial Doppler ultrasonography is a painless test that uses sound waves to assess blood flow in the brain. Doctors recommend this test to discover a medical condition that affects blood flow to and inside the brain. The test is also used to monitor the efficacy of some therapy, such as the removal of blockages in brain arteries. During the test, sound waves are sent through the cranial...
Russian 
English
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Romaian
Portuguese (Brazil)
Greek
urdu