The development and manufacture of DWL Transcranial Doppler Sonography (TCD) is the core competence of Compumedics Germany.

DWL USA, Inc., located in Cameron Park, California, with US wide local sales representation, provides DWL products, support and services to North American customers. Transcranial Doppler Sonography (TCD) has its unique performance in measuring and analyzing flow velocity in blood vessels and detecting cerebral micro emboli. In close cooperation with scholars and research institutes throughout the world, DWL has been perfecting diagnostic methods, developing new applications, and creating Doppler systems, which combine cutting edge performance with unmatched ease of use. With each new DWL system generation, the Doppler Sonography becomes more flexible and user-friendly, and its reports of diagnostic findings become more precise and meaningful.

The World of TCD Clinical Applications

Here you’ll find the latest articles on TCD applications, diagnostics, and treatment methods, all based on clinical research and publications.

  • TCD Clinical Indications
    on 7. March 2024

    TCD provides noninvasive monitoring in diverse clinical situations, offering real-time physiological data without increasing patient risks or costs. Der Beitrag TCD Clinical Indications erschien […]

  • SARS-CoV-2 – update 2023
    on 2. November 2023

    ​​If the coronavirus causes vascular inflammation (vasculitis), the inflammatory reaction leads to vascular narrowing with relevant cerebral blood flow velocities (CBFV) changes. An […]

  • Doppler and Duplex
    on 10. July 2023

    Transcranial Doppler Sonography (TCD) and Transcranial Color Duplex Sonography (TCCD) are complementary diagnostic methods. The diagnosis of stenoses can be made with conventional TCD with the help […]

The broad range of clinical applications with the Transcranial Doppler Sonography

Whether in neurology, neurosurgery, cardiovascular surgery, anesthesia, emergency, and intensive care, as well as in ENT and OMF surgery, the range of applications of the DWL Doppler systems is today broader than ever.

Stroke management


Sickle-cell anemia diagnosis

Brain death diagnosis

PFO diagnosis

Vasospasm diagnosis

Cardiovascular surgery


The appropriate
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