MSK EXTREME. V-SPEC Technology HIGH FIELD 1.0 TESLA TRULY OPEN, DEDICATED MRI. The Power of High Field. Rapid ROI. Optimized Performance

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1 MSK EXTREME HIGH FIELD 1.0 TESLA TRULY OPEN, DEDICATED MRI The Power of High Field Rapid ROI Optimized Performance High Throughput Ease of Use Increased Patient Comfort V-SPEC Technology

2 THE POWER OF HIGH FIELD AT A LOW FIELD PRICE

3 Whether located in a hospital, imaging center, orthopedic or rheumatology practice, the ONI extremity MRI combines the power of high field whole body system performance with the cost advantages of a low field system. With a rapid ROI that quickly translates into enhanced revenue, easy menu driven operation, low siting costs and minimal space requirements, the ONI system provides important ownership advantages. Hospitals and imaging centers can offload or decompress their whole body MRI schedule by transferring the average 25% caseload of extremities to the ONI high field system. The ONI system THE ONI MRI IMAGER PROVIDES HIGH FIELD IMAGE QUALITY, TECHNIQUE FLEXIBILITY, provides high field image quality, technique flexibility, high throughput and is a cost effective alternative to purchasing an additional whole body MRI. HIGH THROUGHPUT AND A RAPID RETURN ON INVESTMENT. THE ONI IS THE ONLY TRULY OPEN MRI SYSTEM AVAILABLE. With an ONI high field extremity MRI in-office, orthopedic and rheumatology practices and surgical centers can now benefit from hospital quality 1.0T image performance with a practice friendly size and price. Immediate MRI access is now available, thus providing faster patient diagnosis and treatment while enhancing practice revenue. Patients requiring an MRI of the hand, wrist, elbow, foot, ankle or knee benefit from a totally non-claustrophobic, quiet, quick, comfortable and convenient experience on the ONI high field extremity system. Because it s designed specifically for extremity applications, no attachment of surface coils or other devices to the imaged anatomy is required. The patient s anatomy is always in the sweet spot of the magnet.

4 The ONI High Field Extremity System Represents a Highly Affordable, Revenue Generating Opportunity for New or Expanding MRI Services Extremity imaging represents approximately 25% of all MR imaging needs today. ONI can assist hospitals and imaging centers in reducing their patient backlog on more costly whole body MRI s, while providing the opportunity to increase their extremity MRI volume. Since the ONI high field extremity MRI examination time averages only 30 minutes, patient throughput is maximized. With the ONI high field extremity MRI, orthopedic and rheumatology practices and surgical centers can now get high field imaging performance for a low field price. An in-office ONI system can provide a more responsive level of patient service and care and also generate ONI DIAGNOSTICS ELIMINATES THE RISK OF REPEAT SCANS significant revenue for your practice. Radiological technologists can quickly learn how to operate the ONI system for maximum utilization of existing staff. ONI delivers the image quality standard embraced by the diagnostic community for interpretations, making it the most powerful extremity system available. Whether leased or purchased, the return on investment is typically less than 2 patients per day, which is a significant advantage when compared to the approximately 6 to 8 patients per day necessary to support a whole body MRI. Finally, as demand for orthopedic extremity MRI procedures steadily grows, due in a large part to active lifestyle trends and greater patient awareness of MR imaging benefits, ONI becomes an even wiser investment.

5 AN ONI HIGH FIELD EXTREMITY MRI CAN PROVIDE A MORE RESPONSIVE LEVEL OF PATIENT SERVICE AND CARE AND ALSO GENERATE SIGNIFICANT REVENUE FOR YOUR PRACTICE. AVERAGE 30 MINUTE SCAN TIME MEANS HIGH PATIENT THROUGHPUT AND A RAPID ROI Two patients per day breakeven. Average ONI patient throughput in an eight hour day.

6 PATIENTS REQUIRING AN MRI OF THE HAND, WRIST, ELBOW, FOOT, ANKLE OR KNEE BENEFIT FROM A TOTALLY NON-CLAUSTROPHOBIC, QUIET, QUICK, COMFORTABLE AND CONVENIENT EXPERIENCE ON THE ONI HIGH FIELD EXTREMITY MRI. NON-CLAUSTROPHOBIC, COMFORTABLE AND CONVENIENT PATIENT EXPERIENCE Conventional MRI can be a frightening and intimidating experience for children and can often require sedation. The ONI provides a non-intimidating, quick and sedation free experience for children. The ONI system design also allows parents to stay with the child to provide comfort during scanning. The high quality diagnostics of the ONI high field extremity MRI eliminates the risk of repeat scans and referrals to whole body MRI s.

7 Clinical Excellence High field 1.0T imaging performance the image quality preferred by the diagnostic community Anatomy being scanned is always positioned in the isocenter or sweet spot of the magnet bore for optimal first-time images, every time Easy Operation Windows-based user interface Intuitive, menu-driven operation Four keystrokes to scan Automatic scan set-up Predefined and custom protocols Anatomical graphics correlated to imaged areas Quick and easy patient positioning Fast scan times and robust pulse sequences for contrast enhanced studies, late echo imaging and fat suppressed visualization DICOM 3.0 compatibility for teleradiology diagnosis and consultation Cost-Effective Installation Can be sited in as little as 165 sq.ft. (15.5 sq m) Light enough for placement on any floor level (1,400 lbs/635 kg) Compact enough to fit through standard doorways and in standard passenger elevators Uses standard commercial electrical power (110VAC, 1 Ø; 208VAC, 3 Ø) Radio Frequency (RF) screen options: in-wall or stand-alone Magnetic shielding not required Patient Convenience and Comfort Completely open design no claustrophobic tube only the extremity to be imaged is placed in the magnet Ergonomically designed moveable chair for optimal patient comfort. Comfortably accommodates patients up to 350 lbs (159 kg) Quiet operation no loud pulses or noise Faster scan times comparable to whole body MRI units 30 minute average patient study time Non-threatening environment ideal for children FAST SCAN TIME EQUALS REDUCED PATIENT WAIT TIME

8 ONI MRI Imaging The Power of High Field The ONI high field extremity MRI is five times more powerful than any competing low field extremity system. The ONI system delivers 1.0T high field imaging performance, the same level of performance as whole body MRI systems. It provides the imaging resolution preferred by the diagnostic community. ONI offers the only truly open high field extremity MRI system available. ONI THE POWER OF HIGH FIELD SWEET SPOT IMAGING + OPTIMIZED PERFORMANCE = HIGH RESOLUTION IMAGES EVERY TIME This powerful imaging capability combined with the consistent positioning of the anatomy to be scanned always in the isocenter or sweet spot of the magnet, results in optimal first time images that often provide even better resolution and information than those produced by high field whole body MRI systems using surface coils. THE ONI DELIVERS THE IMAGE QUALITY STANDARD EMBRACED BY THE DIAGNOSTIC COMMUNITY, MAKING IT THE MOST POWERFUL EXTREMITY SYSTEM AVAILABLE. The power of high field the following images speak for themselves. HAND/WRIST POSITION

9 ELBOW POSITION FOOT POSITION KNEE POSITION

10 Easy to Use... Easy Menu Driven Operation A Windows based interface and intuitive menu driven screens enable users to quickly master operation of the ONI system, from patient entry to DICOM 3.0 transfer and everywhere in between. In just four simple keystrokes, a selected predefined protocol automatically acquires all the prescribed pulse sequences (see figures 1-4). The system also features a Protocol Editor that can be saved on disk and ed to colleagues. Existing radiological technologists can be quickly trained for maximum staff utilization. 1 Patient Entry On the Exam Tab, click Patient Entry to display the Patient Entry Screen. Enter patient information in designated fields. The minimum mandatory information is patient ID and weight. 2 Scan Setup Following the Patient Entry Screen, Scan Setup consists of an image display area for graphical slice location, anatomy selection area, protocol list, sequence list and imaging option area. DICOM 3.0 Compatible Full compatibility with industry standard DICOM 3.0 networking capabilities permits transmission of ONI high field images for tele-radiology diagnosis and consultation anywhere in the world. Images saved in this format can be transferred using standard LAN or WAN networks. 3 Anatomy Selection Select the anatomy to be scanned by simply clicking the corresponding area on the displayed human figure, or choose from the pull down menu. Valid selections include left or right knee, leg, ankle, foot, arm, elbow, wrist or hand. Upon selection, the patient chair is displayed and the related protocols are listed. 4 Protocol Selection Click on the desired protocol. The corresponding imaging sequences are then displayed and listed in the order in which they are to be executed. Press Begin Protocol to scan patient.

11 Easy to Site... Easy to Maintain... The ONI High Field, Truly Open, Dedicated Extremity MRI... Low Siting Cost and Minimal Space Requirements The small footprint and light weight (1400 lbs/635 kg) of the ONI high field extremity MRI system makes siting possible in as little as 165 sq ft (15.5 sq m) and on most any floor level. All system components fit easily through standard doorways and in standard passenger elevators. Since no special structural or electrical upgrades are necessary, siting costs are low. The 12' x 18' (216 sq ft/20.3 sq m) ONI system suite pictured, allows the overall space to be partitioned into three functional areas: the operator s control room, equipment room and patient exam room. Site consultation and planning services are included in the ONI lease or purchase plan. Field Service and Applications Training Support Highly skilled sales representatives and field service engineers are available to support ONI users with prompt expert service, site consultation and planning assistance. Application specialists provide comprehensive training for staff technologists. The ONI high field extremity MRI is backed by a comprehensive one-year warranty on parts, workmanship, technical and performance specifications. Service contracts covering scheduled and remedial maintenance, specific hardware and soft-ware upgrades, and other specified system service are also available. Provides hospitals and imaging centers with an effective way to offload or decompress their whole body MRI schedule by transferring the average 25% case load of extremities to the ONI system. ONI provides high field image quality, technique flexibility, high throughput and is a cost effective alternative to purchasing an additional whole body MRI. Provides orthopedic and rheumatology practices and surgical centers with the benefits of hospital quality 1.0T image performance with a practice friendly size and price. Immediate MRI access is now available thus providing faster patient diagnosis and treatment while enhancing practice revenue. Provides patients with a totally non-claustrophobic, comfortable, and convenient experience on the ONI system. Because it is designed specifically for orthopedic applications, no attachment of surface coils or other devices to the imaged anatomy is required. The patient s anatomy is always in the sweet spot of the magnet resulting in optimal first time images.

12 ONI System Specifications 301 Ballardvale Street, Suite 4 Wilmington, MA Tel: 866-ONICORP ( ) Fax: info@onicorp.com Internet: ONI Medical Systems, Inc. is certified to ISO ONI complies with safety standards for medical devices such as: UL , IEC and IEC ONI Medical Systems, Inc. reserves the right to make changes in any specifications and features shown herein at any time without prior notice or obligation. Contact your local ONI representative or agent for the most current information. 2007, ONI Medical Systems, Inc Rev 2.0 System Space Requirements Suite Size: 11 ft x 15 ft (3.6 m x 5 m) minimum floor space Ergo Patient Chair and Ottoman Type: Manually positioned, free floating cushioned chair with lock-in position brakes, adjustable seat and back inclination and easily moveable ottoman. Weight Support: Up to 350 lb (159 kg) patient Magnet System Type: Superconducting, passive shims Field Strength: 1.0 Tesla, passive shield Fringe Field: 0.5 mt line 1.8 m axial x 1.25 m radial Helium Capacity: < 25 liters liquid helium Size: 500 mm long, 600 mm OD, 280 mm ID Helium Fills: Normally not required Field Stability: < 0.1 ppm/hr Magnet Weight: < 1400 lbs (635 kg) Compressor Weight: 350 lbs (159 kg) Gradient System Strength: 15 mt/m Slew Rate: 60 T/m/s Rise Time: 250 microseconds RF Transmit / Receive Frequency: 42.6 MHz ±500 khz RF power: 500 W peak rms, 50 W average Image BW: Variable 5kHz 100kHz Preamp Noise Fig: < 0.5 db RF Coils 180 mm RF Coil: The 180 mm diameter coil is used for routine lower extremity imaging of the foot, ankle, leg, and knee. 160 mm RF Coil (Optional): The 160 mm diameter coil is a specialty coil that offers up to a 40% increase in SNR (signal-noise ratio) for imaging medium to small-sized knees and feet and larger sized elbows and hands. 123 mm RF Coil: The 123 mm diameter coil is used for routine upper extremity imaging of the hand, wrist, forearm, elbow and for high resolution imaging of small feet, ankles and knees. High-Res v-spec Coils: 80 mm, 100 mm, or 145 mm High Performance RF Coils designed to work with MSK Extreme s Versatile Spectrometer (v-spec) system providing image quality without compromise. Type: All are removable quadrature volume transmit and receive coils. Patient Access: All coils are cylindrical in design with either 180 mm, 160 mm, 145 mm, 120 mm, or 80 mm diameter in the center flared to 200 mm at the patient entrance. Computer System Host Computer: PC based; Pentium IV processor, multithreading, 2.8 GHz min; 80 GB removable hard drive; 350 W power supply. OP System: Windows XP Embedded Data Storage: DVD-R/W, 9.4 GB total (4.7 GB each side), cased type Display: 19 inch LCD panel Data Transfer and Handling (HIS / RIS): DICOM 3.0 send/receive and DICOM Worklist Camera Support: DICOM Print, most popular direct digital camera protocols Reconstruction: 2D < 200 msec/image 3D <.25 sec/plane, 256 x 128 x 64 Imaging Capabilities Sequences: Spin Echo, Fast Spin Echo, 2D and 3D gradient Echo Imaging Options: Inversion recovery, Driven Equilibrium, predefined protocols, 3 plane scout imaging, single and double oblique imaging with use of graphical slice selection, RF spoiling, Slice Interleave, Fat Suppression, Min TE, No Phase Wrap, Partial Data, Spatial Saturation, Flow Compensation, Magnetization Transfer, Rectangular FOV FOV: 4 cm - 16 cm, variable in 1 mm increments Slice Thickness: 2D: 2 mm - 10 mm, variable in 0.1 mm increments. 3D: 0.5 mm - 10 mm, variable in 0.1 mm increments. Matrix: 2D: Phase and frequency variable separately in steps of 2 from 64 to 512, and in z in steps of 1 from 1 to 64. 3D: Phase and frequency variable separately in steps of 2 from 64 to 512, and in z in steps of 2 from 8 to 256 (some multiples of prime numbers not allowed) Image Review Features: Auto display, window/level, pan/zoom, multiple image display, ROI, annotate, measurements, multi-planar reformat, and simultaneity of scan, reconstruction, image display, filming, archiving and DICOM transfer.