Philips Achieva 1.5T MRI

Pulsar, Nova HP and Nova Dual HP Gradients
Freewave TF
Synergy RF system handles 4 quadrature coil channels plus 1 linear channel
High intrinsic homogeneity and excellent image quality
Patient table supports up to 550 lbs
Soft mattress with headrest
SmartExam technology

Patient Accessories:
Adjustable fresh air supply and variable lighting
In-bore microphone and ceiling-mounted loudspeakers support two-way
patient- operator communication and music.
Hand-held technologist call button
Soft mattress with a headrest, knee support, and positioning wedges
Patient headset with built-in two-way communication reduces acoustic noise by up to 25 dB

Patient Environment:
Achieva is specifically designed to enhance patient comfort and throughput
by virtue of a spacious patient aperture.
Achieva has effectively eliminated claustrophobic effects
and gives excellent patient access, provided by a combination
of the shortest straight bore length in the industry and a widely flaring bore.

Specifications:
Aperture:
Bore Diameter: 60cm (23.6 in)
Straight bore length: 60cm
Bore Flare 110 cm (43 in) on both the front and rear of the magnet, enabling equal access to the patient.
Additionally start/stop controls on both ends of the magnet increase operating flexibility.
Patient support enables patients weighing up to 250 kg (550) to be comfortably positioned.
Patient table height can be lowered to 52 cm ( 20.4) providing easy access for compromised positions.
Detachable tabletop can be combined with optional trolley for efficient patient management and rapid evacuation.
Horizontal travel of 215 cm (7.05 ft) (1.0 mm) (0.04inch) accuracy

1.5 Magnet:
The magnet system of Achieva 1.5T offers high intrinsic homogeneity
typically higher than 1.5 ppm- enabling superb fat suppression
via techniques such as SPIR and SPAIR.
In addition Achieva 1.5T system’s high homogeneity allows raid
per- patient dynamic shimming for excellent image quality over
the entire 53cm (20.9 in) field of view.
The ability to employ large FOV’s facilities run-off studies Willis down
to the aortic arch.
The Achieva 1.5T system’s excellent homogeneity also affords easy imaging
of off-center anatomy.

Key Features Include:
Typical homogeneity of 1.5 ppm VMRS over a 50 cm DSV
Superconducting screening coils reduce magnetic field susceptibility caused
by moving ferrous objects.
Lightweight 2900 kg (6393 lbs) design and compact fringe field footprint of 3.8m x 7.9ft)
facilitate easy siting.
Typical helium consumption ( as low as 0.03 1/hr) extends time between cryogen refills.

Nova HP Gradient System:
Philips offers the Nova High Performance (HP) gradient system,
which enables users ideal performance for today’s advanced clinical applications.
In combination with FreeWave, Nova HP delivers exceptional sequence performance
in terms of minimum TE-TR for angio, cardiac, and EPI applications.
Performance is achieved over the entire 53 cm FOV with an excellent acoustic noise.

Key Features Include:
Maximum FOV is 53cm
Peak Amplitude 33mT/m, slew rate 180 mT/m/ms.
All specifications are on axis (x,y, and z)
Lineavity of 1.4% over the entire 53cm FOV with distortion correction.
State of the art water cooled gradient amplifier technology combined
with a non – resonant coil design allows flexible generations of any type
of gradient acoustic noise by up to 30 dB ( an 86% reduction in patient- perceived acoustic noise)

FreeWave Digital RF System:
Achieva 1.5T is powered by Philips FreeWave,
the first entirely direct digital broadband spectrometer.
With a scalable architecture, outstanding SNR performance
and unique 3MHz bandwidth per RF channel,
FreeWave is prepared to perform emerging clinical techniques
that require higher data rates, bandwidth, and resolution,
including Philip’s latest unique methods 4D-TRAK, k-t BLAST,
2D imaging and whole body DWIBS (contained in optional packages)

RF Receive:
16 RF Channels Standard
Direct Digital Sampling at 80 MHz per channel with no analog modulation
3MHz Bandwidth per channel
Simultaneous connection or multiple coils( total of 32 quadrature coil elements)
Modular expandable architecture

RF Transmit:
18kw Solid- state RF power amplifier that affords the energy necessary
to image even the large patient.
Real time control
Sub- millisecond TR’s and ultra-short TE’s provide image quality and reduce examinations times.
Real time imaging control for clinical motion correction, including Snapshot
and optional navigator correction required for free-breathing cardiac techniques
and high resolution diffusion with profile updates with 1 ms.
Real time control of RF transmission, gradient switching, sate acquisition and triggering.

Standard RF Coils:
Quadrature Transmit/ Receive Body coil
Quadrature Head Coil
17 cm circular flex coil
11cm circular flex coil

MR Workspace:
The MR WorkSpace is a unique configure solution to MR workflow targeted
to resolving the management of the increasing volume
of MR workstation that is functionally identical to the operator’s console.
The MR WorkSpace provides standard storage to which DVDs can be included.
An optional MR WorkSpace Media and Distribution center provides
an efficient solution for the creation of labeled patient specific DVDs
and daily DVD back-ups.

The MR WorkSpace can incorporate optional, advanced MR processing
and reporting capabilities.
The result is a seamless working environment that can conform to the needs
of any MR department–boosting its efficiency
and productivity while also avoiding the expense
of dedicated workstations

Computer System:
Achieva 1.5T system’s Distributed architecture is based on the latest computer
and operating system technology. With separate processors for scanning,
image reconstruction, and viewing 1200 per second.

Key Features Include:
23-inch LCD wide screen format monitor
3.2 GHz Dual Intel Xeon processors
Windows VP OS
3 GB internal memory
36 GB system disk
72 GB main image data base disk
80 GB additional data storage disk
DVD + RW for image storage
DVD for software loading
10 Base T, 100 Base T, 1000 Base T connections
Fast reconstruction of demanding image techniques (interactive real-time,
SENSE, high resolution, and high coil channel count)
3.2 GHx multiprocessor or reconstruction
4 GB reconstruction memory