Sono403 Phantoms

Sono403 Multi-Purpose Phantoms

Ensure accurate screening, diagnosis and monitoring.

  • Perform efficient QA testing of ultrasound systems and transducers
  • Use across a variety of applications, including General Radiology, Musculoskeletal, Cardiology, Emergency, Pediatrics, Radiotherapy and Surgical
  • Helps you exceed ACR, ECR, AIUM and other international program requirements

How to use the Sono403 for ACR Requirements

James A. Zagzebski, Ph.D., Professor Emeritus for the University of Wisconsin – Madison Dept. of Medical Physics, demonstrates how to use the Sono403 and SonoTE Phantoms in support of ACR QA and accreditation requirements. Watch his series of how-to videos below.

Sono403 Phantoms, with patented HE (High Equivalency) Gel, provide advanced technology for measuring image quality of small parts and intra-cavity ultrasound scanning systems.

The Sono403 family offers:

  • A near-linear response of attenuation-to-frequencies between 2 to 18 MHz, due to our HE Gel
  • Response of attenuation-to-frequencies over 8 MHz to support accurate axial resolution and penetration depth representative of human tissue1,2

Performance measures:

  • Image uniformity
  • Artifact survey
  • Axial and lateral resolution
  • Horizontal and vertical distance
  • Dead zone
  • Depth of penetration
  • Signal-to-noise ratio
  • Anechoic and echogenic mass resolution
  • Gray scale contrast resolution

“The tissue-like properties in Gammex ultrasound phantoms make them ideal for testing the performance of scanners.”

James A. Zagzebski, Ph.D., FAAPM
Professor Emeritus, Retired Chair
Department of Medical Physics,
Wisconsin Institutes for Medical Research

Sono403 Multi-Purpose Phantoms

Designed for QA testing of ultrasound systems and transducers in General Radiology, Musculoskeletal, Cardiology, Emergency, Pediatrics, Radiotherapy and Surgical applications

HE Gel can be rejuvenated and your phantom re-validated any time to strengthen your investment
HE Gel is very uniform and has a nonlinearity parameter (B/A) that is equivalent to human liver contrast resolution



HE Gel™: Gammex’s multi-frequency tissue mimicking material

Attenuation Coefficient1: 0.5 or 0.7 dB/cm/MHz
Variation of Attenuation with Frequency2,3: f1.08 at 0.5 dB/cm/MHz
f1.1 at 0.7 dB/cm/MHz
HE Gel Freezing Point: < 0°C
HE Gel Melting Point: >100°C
Frequency Range2: 2 - 18 MHz
Speed of Sound: 1540 m/s

Features Sono403 SCG Sono403 SC
Tissue Mimicking Material, Patented
Multi-Frequency HE GelTM:
Scanning Surface, Patented Composite Film:
Uniformity Assessments:
Geometry Assessments:
Sensitivity Assessments:
Resolution Assessments:
Depth of Penetration:
Dead Zone Detection:
Harmonic Imaging:
Anechoic Cysts:
Grey Scale Targets:


  • Precision Transducer Holder
    • Securely holds a transducer in a precise location for reproducible tests over time
    • Fits all Gammex B-Mode & Doppler Flow phantoms
  • Padded travel case with shoulder strap