ONI rolls out OrthOne for dedicated extremity imaging

CHICAGO - ONI is making its RSNA debut with its recently introduced OrthOne, an MR system dedicated to extremity applications. The privately held, North Andover, MA, company hopes to make its mark in the highly competitive MR market with several upcoming installations in the first quarter of 2001.

Company co-founder Peter Roemer is the designer of the extremity scanner, which features a passively shielded 1-tesla magnet with a field stability of <0.1 ppm per hour. The magnet weighs less than 1,400 pounds, allowing for the compact design of the system housing. According to published specifications, the unit can operate in a 10 x 10-foot space.

The OrthOne offers a full suite of imaging capabilities, with spin echo and fast spin echo, as well as 2-D and 3-D gradient-echo sequences available. In addition, the system features imaging options such as inversion recovery, predefined protocols, slice interleave, rectangular FOV, magnetization transfer, fat suppression, spatial saturation, flow compensation, RF spoiling, and single and double oblique imaging with use of graphical slice selection.

According to CEO Bob Kwolyk, “The high-field advantage and gradient system enhances clinical flexibility and productivity with a wide range of pulse-sequence imaging options at fast acquisition speeds. At high-volume sites with patient backlogs this advantage can supplement a whole-body unit as a low-cost second system or replace a second, underutilized whole-body unit to off-load extremity imaging from the main unit.”

The OrthOne acquisition software is powered by a dual-processor Intel 600-MHz Pentium III computer running on the Microsoft Windows NT Workstation 4.0 operating system. The platform features 10 GB of local hard drive storage as well as a 1.3 GB platter magneto-optical drive (MOD) for long-term archiving. The unit is fully DICOM 3.0-compliant, according to company representatives.

The company looks to exploit the price point of $450,000 and one-year on-site warranty of OrthOne as a competitive advantage in the coming year. With low-field (<0.5 tesla) extremity systems in the same price range currently on the market, ONI feels its 1-tesla field strength will make it the preferred extremity scanner for hospitals, radiology centers, and orthopedic clinics. One such customer is Los Angeles-based RadNet Management, which plans to install an OrthOne at its flagship Tower Imaging-Wilshire Center in Beverly Hills, CA, in January 2001.

By Jonathan S. Batchelor
AuntMinnie.com staff writer
November 30, 2000

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