Scanning Systems Ultrasonic Portable are compact devices that use high frequency sound waves for real-time internal body imaging. Point-of-care ultrasound (POCUS) imaging is routinely used by medical clinicians to guide interventional percutaneous procedures such as vascular access, nerve blocks, and therapeutic injections. Ultrasonic scanning systems have an ultrasonic scanner, transducers (frequencies of 2 to 12 MHz are typical for vascular and abdominal scanning, procedure guidance, and nerve blocks), dedicated software, DICOM software for PACS compatibility and image storage, and an image recorder. Most ultrasonic scanners include continuous-wave and pulsed-wave Doppler capabilities (including a spectrum analyzer) for sensing the velocity and location of blood flow; they can be operated in multiple modes, including color flow mapping mode and triplex mode (i.e., simultaneous acquisition and display of 2-D gray-scale, spectral Doppler, and color flow data). Ultrasonic scanning systems usually display images of the vessels in conjunction with spectrum analysis to depict the vessel and its obstructions. Some ultrasonic scanners use a low frequency (typically 2 MHz) Doppler transducer to obtain the blood flow velocity recording in the intracranial arteries. These systems are used for transdermal examinations and diagnosis of diseases, occlusions, and obstructions in the peripheral vascular system, including a profile of the blood-flow velocity in the area under examination. Most of them also include capabilities for small-part examinations.
