Any electrical resistance generates thermal noise called Johnson Noise. This noise is also generated by the human body as a consequence of the ionic nature of body tissue and fluids, all active electronic devices (e.g. transistors) generate noise and noise is transmitted through the ether (radio-signals, interference from electrical equipment, extraterrestrial etc.).

The Esaote Group, founded in the 1980's, is a global leader in research, production, and marketing of medical diagnostic equipment and related services. Esaote offers integrated diagnostic solutions for ultrasound electromedical diagnostic systems, and MRI. The Esaote MR equipment is dedicated for specific clinical applications, as distinguished from conventional whole body MRI systems. This MRI product family is based on a unique, proprietary technology developed specifically for musculoskeletal imaging.
The Italian based company is a member of the Bracco Group.
Esaote North America is the exclusive U.S. distributor of MRI devices manufactured by Esaote.

MRI Scanners:

0.2T to 0.31T:
Vet-MR (Based on the E Scan XQ, dedicated to the veterinarian practice.)

From Toshiba America Medical Systems Inc.;
the EXCELART is a superconducting whole body MRI system with a short wide-bore magnet, operating at 1.5 T. It features powerful high-speed gradients with a revolutionary gradient acoustic noise reduction system: Pianissimo. The dramatic reduction of gradient acoustic noise by Pianissimo greatly enhances patient comfort during exams. The standard array platform and a wide range of array coils ensure excellent images. A powerful 64-bit RISC-based computer system and newly developed array processor realize high productivity.

From Toshiba America Medical Systems Inc.;
the EXCELART is a superconducting whole body MRI system with a short wide-bore magnet, operating at 1.5 T. It features powerful high-speed gradients with a revolutionary gradient acoustic noise reduction system: Pianissimo. The dramatic reduction of gradient acoustic noise by Pianissimo greatly enhances patient comfort during exams. The standard array platform and a wide range of array coils ensure excellent images. A powerful 64-bit RISC-based computer system and newly developed array processor realize high productivity.

From Toshiba America Medical Systems Inc.; FLEXARTâ„¢ series is a 0.5 T superconducting MRI system that has been designed to meet the expanding role of MRI in today's clinical environment. The system utilizes innovative technologies such as digital RF, high speed actively shielded gradients and optimized RF coils which support a wide range of MRI developments.