Doppler ultrasonography (Doppler USG) is one of the advanced ultrasonographic examination methods used to evaluate vascular structures and blood flow, providing real-time imaging without radiation.
While standard ultrasonography allows anatomical evaluation of tissue structures, Doppler USG;
- Helps assess blood flow within vessels,
- The direction of blood flow,
- Flow velocity,
- Flow characteristics
It assists in evaluating these aspects.
In this respect, Doppler USG is an important imaging method that provides not only structural but also functional vascular assessment.
Doppler USG can be used for the evaluation of;
- Neck vessels,
- Arm and leg vessels,
- Venous structures,
- Blood flow in vessels of specific organs
.
It provides important information for examining flow patterns and conducting a more detailed analysis of circulation when vascular structures need to be evaluated.
What is Doppler USG?
Doppler USG is an ultrasonographic examination that uses high-frequency sound waves to evaluate vascular structures and blood flow within vessels in real-time.
This examination:
- Does not involve radiation,
- Is non-invasive,
- Shows vascular structures in real-time,
- Helps in the anatomical and functional evaluation of the circulatory system.
During the examination, along with the anatomical appearance of the vessels, the following features related to blood flow within the vessels can be evaluated:
- Flow direction,
- Flow velocity,
- Flow pattern,
- Flow characteristics,
- Intravascular circulation features.
Thus, not only the structure of the vessel itself but also the functioning of the circulation can be examined.
Doppler USG can be planned for different purposes depending on the vascular region to be evaluated. It can be applied in many anatomical regions from neck vessels to peripheral vessels.
Carotid Doppler USG
Carotid Doppler USG is a Doppler examination used to evaluate the carotid arteries located on both sides of the neck, which supply blood flow to the brain.
Since the carotid arteries are among the main vessels supplying cerebral circulation, evaluation of this region is clinically important.
With Carotid Doppler USG, the following can be evaluated:
- Structure of the vessel wall,
- Vessel lumen,
- Direction and velocity of blood flow,
- Flow pattern,
- Vessel wall thickness,
- Presence of plaques,
- Structural changes that may affect blood flow
.
Examining the flow pattern in neck vessels, evaluating the vessel wall, and investigating changes that may affect flow within the vessel provide important information.
Carotid Doppler USG can be planned in cases such as:
- Dizziness,
- Transient neurological symptoms,
- Clinical conditions requiring evaluation of neck vessels,
- Need for follow-up related to vascular structure,
- Vascular risk assessment
.
What does Carotid Doppler USG show?
Carotid Doppler USG helps evaluate;
- The anatomical structure of neck vessels,
- Vessel walls,
- Vessel lumen,
- Direction and velocity of blood flow,
- Flow pattern within the vessels,
- Intravascular changes that may affect flow
.
Venous Doppler USG
Venous Doppler USG is used for the structural and functional evaluation of the venous system.
Especially in leg veins, it can evaluate:
- Flow pattern,
- Venous circulation,
- Signs of venous insufficiency,
- Suspicion of clot,
- Structural features of the vessels
.
Venous Doppler USG can be planned in cases such as:
- Swelling in the legs,
- Leg pain,
- Varicose vein appearance,
- Unilateral volume increase,
- Suspicion of venous insufficiency,
- Assessment of possible clot,
- Other clinical conditions requiring examination of venous circulation.
This examination helps evaluate both the structural features and the circulatory functions of the venous system.
Arterial Doppler USG
Arterial Doppler USG is an ultrasonographic examination used to evaluate the arterial system.
In arm and leg arteries, it can evaluate:
- Anatomical structure of the vessels,
- Direction of blood flow,
- Flow velocity,
- Circulatory pattern,
- Structural changes that may affect flow
.
Arterial Doppler USG can be planned for reasons such as:
- Suspicion of circulatory disorder,
- Feeling of coldness in the arm or leg,
- Pain triggered by exertion,
- Numbness or color change,
- Clinical conditions requiring evaluation of peripheral circulation
.
This examination helps in the anatomical and functional evaluation of the peripheral arterial system.
Other Doppler Examinations
Doppler USG is not limited to the evaluation of carotid, venous, and arterial systems only.
Depending on clinical necessity, the following can be evaluated within the scope of Doppler examination:
- Blood flow in organ-specific vessels,
- Superficial vascular structures,
- Certain regional circulatory areas,
- Vascular features of soft tissue lesions,
- Vascular structures in different anatomical regions
.
These examinations are planned according to the:
- Anatomical features of the relevant region,
- Vascular structure,
- Clinical findings,
- Purpose of evaluation
.
Post Doppler USG Process
Doppler USG is a non-invasive examination method. No recovery period is required after the procedure, and the person can continue daily life on the same day.
Based on the findings obtained after the examination, the following may be planned:
- Clinical follow-up,
- Control Doppler ultrasonography,
- Advanced imaging,
- Laboratory evaluations,
- Other necessary examinations or procedures
.
Doppler USG is one of the advanced ultrasonographic examination methods that assist in the evaluation of vascular structures and blood flow, playing an important role in the anatomical and functional analysis of the circulatory system.
