Specifications:

MAGNETOM OPEN VIVA PREFERRED

The MAGNETOM OPEN VIVA PREFERRED integrates all aspects of the clinical MR exam into an efficient, cost-effective environment. The system has the same computer platform and software as other MAGNETOM systems, which allows the OPEN to quickly take advantage of the latest state-of-the-art imaging techniques. The system utilizes a magnet, which is open on 3 sides for easy patient access. Compact design of the entire system allows easy installation in as little as 325 square feet.

C-Shaped Resistive 0.2T Magnet

The MAGNETOM OPEN has an open C-shaped, 0.2 Tesla magnet, magnet power supply, and passive shim system. The wide horizontal opening of the magnet increases patient comfort and allows easy access to the patient. The water-cooled magnet weighs only 12 metric tons In its operational configuration. The 5 gauss line extends 8 feet 6 inches in front of the magnet and only 7 feet 10 inches in all other directions, which in many installations can be constrained within the exam room.

Gradient System

15 mT gradients with a rise time of 900 usec in all three spatial directions are integrated into the magnet design. Siemens uses a proprietary design to achieve flat actively shielded gradient coils, which provide axial, sagittal, coronal, oblique and double oblique cross-sectional Images of the whole body. This powerful gradient system allows easy implementation of new techniques due to its flexibility.

Digital RF System

A digital RF system, operating at 8.25 MHz, features computer-controlled signal processing to generate arbitrary RF pulse shapes for accurate slice profiles. The maximum power output is 2 kW with high frequency stability.

Patient Table

Fully detachable patient table that supports up to 440 lbs.

Optimized RE Coils

Coils are automatically tuned and actively decoupled. Two receive coils can be connected simultaneously, with scanning coil simply selected via software in one easy step. The following coils are included:

Flexible receive coil with 21 cm diameter which can be used to scan the cervical spine, shoulders and extremities of patients who do not fit in the standard 16 cm multipurpose coil.

Flexible receive coil with 16 cm diameter which can be used to scan the cervical spine, shoulders and extremities of patients.

Comfort Kit

Positioning devices for stable positioning of patient anatomy during the MR examination. May enhance patient cooperation leading to more completed exams and reduce image artifacts due to patient motion.

Includes:

Vacuum pump and fittings 3 cushions of Various sizes - cushions filled with tiny plastic balls which become stationary when air is evacuated.

Patient Positioning Accessories

There is a light localizer for accurate patient Positioning. Manually driven patient Table is moveable in 2 directions for easy patient positioning. Off center positioning is possible for shoulder imaging, and in some instances when imaging the extremities or abdomen, the patient head may be outside of the system for added patient comfort. Other patient comfort accessories featured by the MAGNETOM OPEN include patient table pads and positioning cushions, a 2-way patient/operator intercom and patient emergency call button.

Patient Monitoring Unit and Physiologic Gating

Integrated hardware for synchronizing measurements with ECG, pulse, or respiratory trigger signals. The signal is displayed on Diagnostic Main Console.

MAGNETOM Computer System

The TurboSPARC host computer with faster CPU distributes processes among various system components allowing simultaneous system control, raw data reconstruction, fast post-processing and patient data management. Improves system handling, archiving, documentation and filtering.

SMI Array Processor

A dedicated 48 MByte array processor and RAM Imaging cache, completely independent of the SMI, performs post-processing calculations and manipulations including:

On-Line Storage Device

A 2.1GB Winchester Disk Drive is included for storage of NUMARIS III system software and approximately 9000 images in 256 X 256 format.

Archive Storage Device

The read/write Disk Drive utilizes 1.7 GB 5 ¼” removable media for archive of approximately 11,000 images (256*256) per disk.

Fully Integrated Diagnostic Main Console

The operators console makes use of a window based mouse-driven user interface. This streamlined front end utilizes versatile pop up menus that can be activated anywhere on the screen by clicking the mouse. The 19’ high- resolution monitor (1024x1024) displays images and scan parameters, system status, and menus all in one concise format. Console has 60 freely programmable function keys, which can be used for fast flexible operation. A multi-tasking, single console can be used for all scan operations, filming, archiving, and all post-processing functions regardless of simultaneous processing already in progress.

NUMARIS III Software

A complete, general-purpose MRI operating system with the following special features:

Freely select matrix size (n * 256, where n > 128 in steps of 1 or m * 512 where m > 256 in steps of 1) provides flexibility in resolution and the ability to reduce scan time. Vari slice gap and zero slice gap imaging due to crafted RF pulses.

Graphically prescribed oblique and double oblique slice positioning due to powerful gradient system.

Multiple oblique/multiple angle slice positioning Presaturation

Protocols are stored in a clinically oriented, 3 level system (CORE) with optimized parameters for excellent image quality every time. Additional protocols can be customized and stored to meet the users particular needs.

Turbo Spin Echo allows acquisition of Proton Density and T2-weighted spin echo studies at substantially reduced imaging times relative to conventional spin echo acquisition by acquiring multiple date lines per TA. Turbo Spin Echo includes single contrast (T1, T2 or Proton Density) and double contrast (Proton Density and T2) sequences. Turbo Spin Echo protocols have been optimized to provide the clinically required number of slices and familiar spin echo contrast with the shortest exam times possible in all anatomical areas. Some Turbo Spin Echo sequences are combined with Gradient Motion Rephased (GMR) to reduce motion artifacts.

Post-processing Software

Image Filter Software

Software package for post-processing of images to obtain noise reduction through a combination of high-and low-pass filtering. Enhancement is adjusted to the local image content through a process of adaptive filtering in order to achieve the optimal balance of smoothing and edge enhancement Up to twenty different settings are available and may be pre-programmed for specific protocols relative to application and required resolution of the acquired data.

UPS Powerware System

The UPS Powerware System provides clean power and protects against sags, surges, spikes and brownouts. In addition the UPS Powerwave System can continue to supply power to the Magnetom System for a limited period of time after a blackout.

Water Chiller