Transcranial Doppler Ultrasound System – Advanced Neurological Diagnostic Solution

Equipped with outstanding features including high sensitivity, reliable performance, and user-friendly portability, this system delivers a powerful diagnostic tool for neurological assessment, clinical practice, and a wide range of medical applications.

Product Model: EK-1000B

The EK-1000B is a flagship model from Jiangsu Yikang's TCD product line, designed to meet the demanding requirements of modern neurological diagnosis. As a Class II medical device with CE and ISO certifications, the EK-1000B has been widely adopted in hospitals, community health centers, and specialized clinics across China and international markets .

What Is Transcranial Doppler (TCD)?

Transcranial Doppler ultrasound is a non-invasive diagnostic test that uses sound waves to evaluate blood flow in the major cerebral arteries and veins of the head and neck. Like a "radar" for the brain, TCD provides real-time information about blood flow velocity through the circle of Willis—the important junction of blood vessels at the base of the brain—helping physicians assess cerebral perfusion without the need for contrast agents or invasive procedures.

Key Functional Features

✅ Routine Diagnosis

Evaluate stenosis and occlusion status of cerebral arteries, assess cerebral autoregulation, monitor intracranial pressure, and support brain death determination.

✅ Blood Flow Velocity Monitoring

Detect and monitor real-time blood flow velocity for comprehensive hemodynamic assessment. Studies have shown TCD can detect right-to-left shunts nearly three times more effectively than echocardiography.

✅ Intracranial Stenosis & Occlusion Diagnosis

Accurately diagnose intracranial arterial stenosis and occlusion with high sensitivity and specificity. TCD demonstrates promising diagnostic accuracy for detecting cerebral vasospasm and can be incorporated into multimodal neuromonitoring protocols.

✅ Vasospasm Detection

Particularly valuable for managing patients following subarachnoid hemorrhage (SAH), TCD can detect vasospasm—a common complication that may cause secondary stroke. Studies report TCD sensitivity and specificity of 89–98% for SAH-associated vasospasm diagnosis.

✅ Multi-Gate & Multi-Window Display

The EK-1000B supports simultaneous display of blood flow signals at multiple depths through four independent windows, with M-mode functionality for intuitive multi-depth comparison .

✅ Embolic Signal Detection

Equipped with spindle-wave embolus recognition technology, the system can reproduce original Doppler signals to help capture microembolic signals in real time, enhancing ischemic stroke risk screening efficiency .

✅ Comprehensive Data Management

Supports full-process video playback of examinations, allowing clinicians to review, edit, and capture representative spectrograms. A single report can include up to 9 flow images .

Clinical Applications Across Departments

Who Should Consider TCD Screening?

TCD is recommended for:

• High-risk individuals: Those with hypertension, diabetes, hyperlipidemia, smoking history, or family history of stroke

• Patients with symptoms: Recurrent dizziness, headaches, transient ischemic attacks (TIA), unexplained syncope

• Post-surgical patients: Following cardiac or cerebrovascular procedures requiring flow monitoring

• Sickle cell patients: To assess stroke risk

• Children: Premature infants or those with suspected cerebral developmental abnormalities

Advantages of TCD Technology

Technical Specifications (EK-1000B)

Clinical Evidence & Validation

Vasospasm Detection: TCD demonstrates excellent diagnostic accuracy for detecting cerebral vasospasm following aneurysmal subarachnoid hemorrhage, making it a valuable adjunct to multimodal neuromonitoring.

Right-to-Left Shunt Detection: A 2026 study found that transitioning from echocardiography to TCD as the primary screening tool for right-to-left shunt detection substantially increased detection rates—with the odds of detection nearly three times higher with TCD (OR = 2.93).

Stroke Prevention: TCD is recommended by the American Heart Association for monitoring arterial vasospasm and is extensively used in stroke management protocols.

Real-World Adoption: The EK-1000B has been successfully deployed in multiple healthcare institutions across China, including community health centers and hospital neurology departments, demonstrating consistent performance and clinical reliability .

Ideal Applications

• ✅ Hospitals seeking a cost-effective, reliable TCD solution

• ✅ Private practices requiring portability and ease of use

• ✅ Clinics expanding their neurological diagnostic capabilities

• ✅ Emergency departments needing rapid point-of-care assessment

• ✅ Intensive care units for bedside patient monitoring

• ✅ Community health centers for preventive screening programs

Why Choose the EK-1000B TCD System?

1. High Sensitivity & Accuracy – Clinically validated for reliable cerebrovascular assessment with ≤10% velocity measurement error and 1mm depth accuracy 

2. Multi-Gate Intelligence – Single-probe four-window simultaneous display plus M-mode for comprehensive multi-depth comparison 

3. User-Friendly Design – Intuitive interface with automatic calculation of core TCD parameters (PSV, MV, RI, PI, S/D ratio), minimizing operator training requirements 

4. Portable & Compact – Foldable support structure for easy transport between departments, bedside, or community screening sites 

5. Non-Invasive & Safe – Only 10% ultrasound power output required for high-quality flow spectrum acquisition, reducing exposure risk 

6. Cost-Effective – Lower total cost of ownership compared to CT angiography or MRI, with proven value in government procurement projects 

Get Started: Partnership & Inquiry

Company Website: http://www.ykoykmed.com
Alibaba International Station: https://jsyikang.en.alibaba.com
Email: yk@ykoykmed.com
Address: 3rd Floor, Unit 1, Commercial Building, Area D, Jiuli Fengjing Residential Quarter, Gulou District, Xuzhou City, Jiangsu Province, China

Welcome to visit our company website or Alibaba International Station to learn more about our products, or send us an email for inquiries. We will respond promptly with professional service.

FAQ (Frequently Asked Questions)

Q: What is TCD used for?
A: TCD is used to evaluate cerebral blood flow velocity, detect stenosis or occlusion, monitor vasospasm (especially after subarachnoid hemorrhage), and assess embolic signals in the bloodstream.

Q: Is the procedure painful?
A: No. TCD is non-invasive and painless. You may feel mild pressure as the transducer moves over your head and neck, but it should not cause pain.

Q: How long does a TCD examination take?
A: The examination typically takes 15-30 minutes, depending on the specific protocol and patient anatomy.

Q: Does TCD involve radiation exposure?
A: No. TCD uses ultrasound waves and involves zero ionizing radiation, making it safe for repeated examinations.

Q: Which departments benefit from TCD?
A: TCD is valuable across neurology, neurosurgery, emergency medicine, intensive care, vascular surgery, geriatrics, and general health screening.

Q: What is the normal mean flow velocity for MCA?
A: Normal mean flow velocity for the middle cerebral artery (MCA) is typically <120 cm/s. Values >120 cm/s may indicate vasospasm.

Q: What is the EK-1000B model?
A: The EK-1000B is a flagship TCD model from Jiangsu Yikang, featuring multi-gate four-window display, M-mode functionality, embolic signal detection, and full-spectrum data management .

Jiangsu Yikang Electronics Technology Co., Ltd. – Empowering Neurological Health with Advanced Ultrasound Solutions.