What is the transcranial doppler ultrasound?

Transcranial Doppler ultrasound is a medical imaging study that is designed to provide information about the health of the blood vessels inside the brain. Using this imaging study, the physician can identify risk factors, learn more about the persistent state involving the brain, or follow the results of surgery. TCD, as is also known, can be used separately as a separate diagnostic test or as part of a number of tests to provide a more complete image of the patient case. A small amount of gel is applied around the skull, often near the skull base or ears, and the ultrasound probe is gently pressed on the skin. During the test, the patient may remain fully dressed and conscious and may not perform any special preparations. The patient is usually asked not to speak to avoid the head and disturb the results. After reading the transcranial doppler ultrasound with a radiologist, the results can be discussed with the patient.

This technique of ultrasonography relies on a phenomenon known as Doppler's effect, characterized by shifts on the pitch that occur when objects move from or closer to the observer. Regular ultrasound simply reflects the sound waves from the inside to create an image, while Doppler's ultrasonic measures changes in the pitch and uses them to create a picture of movement inside the body. This allows people to monitor blood flow through different blood vessels by monitoring that it moves on an ultrasonic screen.

During the Transkranial Doppler ultrasound study, images will be displayed in real time. The device often encodes them for comfort and shows the direction and speed of blood flow. Some machines also map the physical structures in the regionuchcete -li to create a reference frame, while others only show the blood vessels captured by an ultrasonic probe.

Transcranial Doppler ultrasound can be used to search for symptoms of stenosis or aneurysm in the brain and to control clots, bleeding and formsa problem. Neurosurgeons can also use a transcranial doppler ultrasound during surgery as a monitoring tool to monitor the patient's brain. This imaging technique allows people to identify problems in the early stages and create an opportunity for early intervention that can minimize brain damage.