Ultrasound | US

Complement your electrodiagnostic testing, improve your diagnoses and treatment decisions, and augment your needle guidance and injections.

Cadwell is dedicated to proactively contributing toward the advancement and promotion of Neuromuscular Ultrasound (NMUS). We believe that by providing a fully integrated EMG/NMUS diagnostic solution, and by driving the development of dedicated NMUS-focused features, we will be able to help you help others even more efficiently in the future.

Real-time imaging

  • Dynamic visualization
  • Ability to see moving tissue
  • Ability to see vascular flow with Doppler imaging
  • Protect target and surrounding soft tissue structures in diagnostic and therapeutic needle guidance procedures
  • Enhance safety and accuracy in needle procedures

Safe, portable, and low-cost

  • No ionizing radiation
  • Can be used with metallic implants
  • No claustrophobia, as with other imaging modalities
  • No restrictions or known adverse effects
  • Instant feedback of results

Integrated Ultrasound and EMG

Combined EMG and Ultrasound gives you:

  • Shared hardware and controls
  • The same software and workflow
  • Integrated reports and data management
  • Concurrent use of EMG and ultrasound

By integrating ultrasound directly into our EMG/NCS system, the Sierra Summit ensures a seamless approach to using imaging in your electrodiagnostic testing. Our EMG with integrated ultrasound will help you:


  • Understand the controls and functions
  • Confirm electrodiagnostic findings
  • Detect early stage nerve damage
  • Provide insight into muscle functionality
  • See how movement affects the nerve
  • Study the nerve along its entire course
  • Improve needle procedures

B Mode: Median Nerve Long Axis

B Mode: Median Nerve Cross-Section

M Mode: Diaphragm with Phrenic Nerve Stim

Needle Injection with PDI Doppler

Ultrasound Modes


  • B Mode (B+B, 4B)
  • M Mode, B+M
  • Spacial Compound
  • B-Steer (Needle Enhancement)


  • B Mode (B+B, 4B)
  • M Mode, B+M
  • Spacial Compound
  • B-Steer (Needle Enhancement)
  • Doppler  (CFM, PDI, DPDI)
  • Pulsed and Continuous Wave
  • Spectral Doppler
  • High Pulse
  • Repetition Frequency