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Philips Achieva 1.5T (2017)

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Philips Medical Diagnostic Equipment

Refurbished

Philips Achieva 1.5T (2017)

Direct digital signal handling, sized for matrices up to 2k by 2k.

Fast, high-resolution MRI is a data problem before it is anything else. FreeWave digitises the signal at the spectrometer with 3 MHz of bandwidth on every RF channel, across a modular architecture built to carry the data rates that high-matrix and accelerated techniques generate. This system was built in 2017 and is listed on Medigear.uk for UK business buyers.

Sections

MRI Systems

Categories

Medical Diagnostic Equipment

Condition

Refurbished

Year

2017

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

A magnetic resonance signal is small, and everything after it is an exercise in preserving what was there. The longer that signal stays analogue, the more opportunity there is for it to pick up what it should not.

FreeWave addresses that with direct digital broadband handling at the spectrometer. Each RF channel carries 3 MHz of bandwidth, and the architecture is modular across up to 32 channels, which is what allows the system to move the data volumes that high-resolution and accelerated acquisitions produce. Imaging matrices reach 2,000 by 2,000, and techniques that depend on sustained data rates run on that foundation: 4D-TRAK for time-resolved angiography, k-t BLAST for acceleration in dynamic studies, and whole-body diffusion-weighted imaging with background suppression.

Acceleration is available through SENSE, which can be combined with essentially every scan method on the platform, with factors to sixteen. It buys shorter acquisitions, higher temporal resolution or finer spatial resolution according to how the operator chooses to spend it.

Field homogeneity supports the sequences that depend on it. Intrinsic homogeneity is typically better than 1.5 ppm, which is what makes spectrally selective fat suppression through SPIR and SPAIR reliable, and per-patient dynamic shimming is applied to hold that across the imaged volume.

The gradient system is specified rather than fixed. Pulsar provides 33 mT/m at a slew rate of 80 mT/m/ms, Nova provides 33 mT/m at 160, and Nova Dual operates in two modes at 33 mT/m and 160 or 66 mT/m and 80, which suits echo-planar, cardiac and angiographic work where minimum TE and TR govern what is achievable. Which system is fitted here is established for this unit.

The RF chain is modular. Eight, sixteen or thirty-two receive channels are supported with simultaneous connection of multiple coils, and the platform was also supplied in and upgraded to a dStream configuration, in which digitisation happens in the coil on the patient and the signal travels onward over fibre optic. Whether this system carries that configuration is set out by the seller.

Patient handling reflects a 60 cm bore with a 60 cm straight section and a 110 cm flare at each end, giving access from both ends with start and stop controls at both, and a table supporting patients up to 250 kg. Large and offset fields of view are supported, and a high signal-to-noise body coil allows large field-of-view work without surface coils where a study permits it.

SmartExam with ExamCards carries protocol consistency, automatically planning and executing examinations to a stored definition so studies are comparable across operators and across visits.

Diagnostic interpretation remains with the reporting radiologist, and safety screening and scanning decisions with the operating department under its own MR safety framework. The system generation, software release, channel count, gradient system, coil set, magnet condition and helium history are provided by the seller at quotation, with CE marking documentation, the declaration of conformity, a decontamination certificate and warranty terms issued by the manufacturer or held by the seller.

Neurological imaging is supported by high-matrix acquisition and by homogeneity that holds spectrally selective fat suppression across the imaged volume.

Musculoskeletal imaging benefits from matrices to 2,000 by 2,000 and from the gradient performance required for short echo times on the higher amplitude configurations.

Body and abdominal imaging is served by large and offset fields of view, with the body coil supporting large field acquisitions without surface coils where a study permits.

Angiographic work is supported by 4D-TRAK time-resolved acquisition, with gradient performance governing the minimum TE and TR achievable.

Cardiac imaging draws on k-t BLAST acceleration for dynamic studies and on the gradient system fitted to the individual unit.

Oncological staging is supported by whole-body diffusion-weighted imaging with background suppression, acquired across stations on one visit.

Departments running comparable follow-up studies are served by SmartExam with ExamCards, which plans and executes to a stored protocol so examinations match across operators and across visits.

The Signal Digitised Early

FreeWave handles the signal digitally at the spectrometer, so less of the chain after acquisition is analogue.

Bandwidth on Every Channel

Each RF channel carries 3 MHz of bandwidth across a modular architecture of up to 32 channels.

Sized for High-Matrix Acquisition

Imaging matrices reach 2,000 by 2,000, with the data handling built to carry acquisitions of that size.

Acceleration Across Almost Every Sequence

SENSE can be combined with essentially every scan method, with factors to sixteen, spent on time, temporal resolution or spatial resolution as the study requires.

Homogeneity That Holds Fat Suppression

Intrinsic homogeneity typically better than 1.5 ppm, with per-patient dynamic shimming supporting SPIR and SPAIR across the volume.

Gradient Performance Matched to the Work

Pulsar, Nova and Nova Dual configurations were offered, with Nova Dual providing two operating modes for different sequence demands.

Access From Both Ends

A 60 cm straight bore section with a 110 cm flare at each end, and start and stop controls at both, allows the patient to be reached from either side.

Large Fields Without Surface Coils

A high signal-to-noise body coil supports large and offset field-of-view work where the study allows, which shortens set-up.

Protocols That Repeat Themselves

SmartExam with ExamCards plans and executes to a stored definition, so studies are comparable across operators and across follow-up visits.

A Table Taking 250 kg

Patient support to 250 kg widens the range of patients a department can accept.

Configuration Documented Before Order

Channel count, gradient system, coil set and dStream configuration are all provided by the seller at quotation, so what a buyer receives is established in writing.

1.5 Tesla Whole-Body Superconducting MRI System

A magnet, gradient system, RF chain, patient table and operator console for whole-body magnetic resonance imaging.

Year of Manufacture: 2017

Bearing on system generation, software release, coil compatibility and support arrangements.

FreeWave Direct Digital Broadband Spectrometer

Digital signal handling at the spectrometer across a scalable architecture.

3 MHz Bandwidth per RF Channel

The per-channel bandwidth carried through the receive chain.

Modular 32-Channel Architecture

Expandable receive architecture with simultaneous connection of multiple coils.

RF Receive Channels: 8, 16 or 32

Supplied in three configurations, with the count on this unit confirmed at quotation.

Imaging Matrix: Up to 2,000 by 2,000

The maximum acquisition matrix the data handling supports.

SENSE Parallel Imaging

Acceleration combinable with essentially every scan method, with factors to sixteen.

4D-TRAK

Time-resolved angiographic acquisition.

k-t BLAST

Acceleration for dynamic and cardiac studies.

Whole-Body DWIBS

Diffusion-weighted imaging with background body signal suppression across stations.

Pulsar Gradient System

33 mT/m amplitude at a slew rate of 80 mT/m/ms.

Nova Gradient System

33 mT/m amplitude at a slew rate of 160 mT/m/ms.

Nova Dual Gradient System

Two operating modes at 33 mT/m and 160, or 66 mT/m and 80.

Magnet Homogeneity

Typically better than 1.5 ppm intrinsically, with per-patient dynamic shimming.

SPIR and SPAIR Fat Suppression

Spectrally selective fat suppression supported by the field homogeneity.

Patient Bore: 60 cm

With a 60 cm straight bore section and a 110 cm flare at both ends.

Start and Stop Controls at Both Ends

Operating controls at each end of the magnet.

Patient Table Capacity: 250 kg

With a soft mattress and head rest.

High Signal-to-Noise Body Coil

Supporting large and offset field-of-view imaging without surface coils where the study permits.

SmartExam With ExamCards

Automated planning and execution to stored protocol definitions.

dStream Configuration

Digitisation in the coil with fibre-optic transmission, supplied from new or by upgrade, with the configuration on this unit confirmed at quotation.

Coil Set

Receive coils supplied with this system listed by the seller at quotation.

Magnet Condition and Helium History

Cryogen level and fill history provided by the seller at quotation.

CE Marking and Declaration of Conformity

Issued by the manufacturer and requested from the seller at quotation.

Decontamination Certificate and Warranty Terms

Provided by the seller at quotation, in line with normal practice for used imaging equipment.

Siting and Installation

Magnet siting, floor loading, RF shielding, quench pipe routing, chiller capacity and power supply assessed before installation, which Medigear.uk can arrange.

This Philips Achieva 1.5T was built in 2017, and the case for it starts with how the signal is handled. A magnetic resonance signal is small, and the longer it stays analogue the more it can pick up on the way, so FreeWave digitises at the spectrometer and carries 3 MHz of bandwidth on every RF channel across a modular architecture of up to 32. That is what supports acquisition matrices reaching 2,000 by 2,000 and the techniques built on sustained data rates: SENSE acceleration to sixteen combinable with essentially every sequence, 4D-TRAK time-resolved angiography, k-t BLAST for dynamic studies and whole-body diffusion imaging with background suppression. Around it sit intrinsic homogeneity typically better than 1.5 ppm with per-patient dynamic shimming for SPIR and SPAIR, a gradient system specified as Pulsar, Nova or Nova Dual, a 60 cm bore flaring to 110 cm at both ends, a 250 kg table and SmartExam planning to stored protocols. Diagnostic interpretation remains with the reporting radiologist. The channel count, gradient system, coil set, dStream configuration and magnet condition are provided by the seller at quotation. Medigear.uk lists the system for UK business buyers and can arrange a siting survey, transport, rigging, installation, staff familiarisation, service cover and the supply of spares and consumables. Enquire for a written quotation.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

It is a 1.5 tesla whole-body superconducting MRI system with a 60 cm patient bore, supporting neurological, musculoskeletal, body, angiographic and cardiac imaging according to the coils and options supplied. This system was built in 2017.

A direct digital broadband spectrometer that digitises the signal early, carrying 3 MHz of bandwidth on each RF channel across a modular architecture of up to 32 channels.

Up to 2,000 by 2,000, which is what the data handling architecture was built to carry.

SENSE parallel imaging with factors to sixteen, alongside 4D-TRAK time-resolved angiography, k-t BLAST for dynamic studies and whole-body diffusion-weighted imaging with background suppression.

The platform was supplied in 8, 16 and 32 channel configurations, so the count on this system is set out by the seller at quotation.

Pulsar at 33 mT/m and 80 mT/m/ms, Nova at 33 and 160, and Nova Dual operating at either 33 and 160 or 66 and 80, with the system fitted here confirmed at quotation.

Typically better than 1.5 ppm intrinsically, with per-patient dynamic shimming applied to support spectrally selective fat suppression through SPIR and SPAIR.

A 60 cm diameter bore with a 60 cm straight section and a 110 cm flare at both ends, with start and stop controls at each end.

Up to 250 kg.

The platform was supplied in and upgraded to a dStream digital coil configuration, so whether this system carries it is set out by the seller at quotation.

Magnet siting and floor loading, RF shielded enclosure, quench pipe routing, chiller capacity and power supply. Medigear.uk can arrange the siting survey, rigging and installation once terms are agreed with the seller.