The American College of Radiology (ACR) and Intersocietal Accreditation Commission (IAC) recommend Doppler velocity verification at least annually. Many accredited vascular laboratories perform quarterly calibration checks as part of their quality assurance program. Additional testing is recommended after equipment service, software updates, transducer replacement, or any time measurement accuracy is questioned.

Multiple accrediting bodies require documented ultrasound quality assurance programs: ACR (American College of Radiology) requires annual phantom testing; IAC (Intersocietal Accreditation Commission) covers echocardiography and vascular testing; ICAVL (Intersocietal Commission for the Accreditation of Vascular Laboratories) requires velocity accuracy verification; The Joint Commission mandates equipment management and QA programs; and AIUM (American Institute of Ultrasound in Medicine) publishes practice guidelines. Our phantom and documentation support all these standards.

String phantoms use a moving filament at precisely controlled velocities, eliminating variables like blood-mimicking fluid temperature, viscosity, and particle concentration. This provides more consistent, reproducible calibration results with minimal maintenance. Flow phantoms with blood-mimicking fluid can better simulate certain acoustic properties like scattering, but require temperature control, regular fluid replacement, and more complex setup. For Doppler velocity calibration, string phantoms offer superior accuracy and practicality.

Yes. The Mark V Doppler Phantom is compatible with all diagnostic ultrasound systems with Doppler capability, including GE, Philips, Siemens, Canon (Toshiba), Samsung, Fujifilm, Mindray, and other manufacturers. The 2-15 MHz probe compatibility covers virtually all clinical transducers used in vascular, cardiac, obstetric, and general imaging applications.

The Mark V covers 10-200 cm/s, spanning the full range of clinical blood flow velocities: venous flow (10-30 cm/s), normal arterial flow (30-100 cm/s), and peak systolic velocities in stenotic vessels or cardiac applications (up to 200 cm/s and beyond). This range supports carotid stenosis grading, peripheral vascular assessment, cardiac valve evaluation, obstetric Doppler, and transcranial Doppler applications.

NIST-traceable calibration means our phantom's velocity accuracy can be documented through an unbroken chain of comparisons back to the National Institute of Standards and Technology. Each Mark V ships with a Certificate of Calibration showing measurement uncertainty and traceability. Annual recertification maintains this traceability—essential for regulatory compliance and accreditation audits.

Each Mark V ships with a Certificate of Calibration traceable to NIST standards. The unit exports test results in PDF and CSV formats compatible with ACR, IAC, ICAVL, and Joint Commission accreditation requirements. We also provide template QA protocols, testing procedure documentation, and guidance for laboratory accreditation submissions. Our support team can assist with specific accreditation documentation requirements.

Yes. We supply doppler phantoms to ultrasound OEM manufacturers for production testing and QA, to medical device developers for R&D and regulatory submissions, and to academic institutions for research and education. Volume pricing and custom configurations are available for OEM and institutional customers. Contact us to discuss your specific requirements.