MRI Database : Coil Diameter p3

Functional MRI - Examinations - Anatomy - Claustrophobia - Absorption and Emission - Knee MRI

Signa Ovation™

www.gehealthcare.com/usen/mr/ovation/index.html

From GE Healthcare;
the Signa Ovation™ is a patient-friendly open MRI scanner designed not only to handle a typical patient mix, but to accommodate larger patients, patients who are claustrophobic, and others who have difficulty tolerating the close quarters of conventional MR machines.

Device Information and Specification

CLINICAL APPLICATION

Whole body

CONFIGURATION

Open MRI

Integrated transmit and receive body coil; head coil, 4 channel neurovascular array, 8 channel CTL array, 2 channel shoulder array, 3 channel large extremity array, 3 channel small extremity array, 4 channel foot array, 3 channel wrist array

SYNCHRONIZATION

Standard cardiac gating, ECG/peripheral, respiratory gating

PULSE SEQUENCES

Standard: SE, IR, 2D/3D GRE and SPGR, 2D/3D TOF, 2D/3D FSE, 2D/3D FGRE and FSPGR, SSFP, FLAIR, EPI, optional: 2D/3D Fiesta, true chem sat, fat/water separation, single shot diffusion EPI, line scan diffusion

IMAGING MODES

Localizer, single slice, multislice, volume, fast, POMP, multi slab, cine, slice and frequency zip, extended dynamic range, tailored RF

1.3 to 12000 msec in increments of 1 msec

0.4 to 2000 msec in increments of 1 msec

SINGLE/MULTI SLICE

Simultaneous scan and reconstruction;; 80 images/second reconstruction

FOV

3cm to 40 cm continuous

2D: 1.4mm - 20mm 3D: 0.2mm - 20mm

1280 x 1024

MEASURING MATRIX

128x512 steps 32 phase//freq.

PIXEL INTENSITY

256 gray levels

0.08 mm; 0.02 mm optional

MAGNET TYPE

Permanent

BORE DIAMETER
or W x H

175 x 85 x 447 cm

MAGNET WEIGHT

19200 kg

H*W*D

530 x 175 x 250 cm

POWER REQUIREMENTS

200 - 480, 3-phase

GRADIENT COOLING

None

0.35 T

MAX. GRADIENT AMPLITUDE

19 mT/m

5-GAUSS FRINGE FIELD

2.5 m/2.5 m

Computerized passive shimming during magnet setup, autoshim per series with automatic table motion to magnet isocenter for each prescription

MRI Physics - Blood Flow Imaging - Functional MRI - Jobs - Stimulator pool - Sequences

AIRIS II™

From Hitachi Medical Systems America Inc.;
the AIRIS II, an entry in the diagnostic category of open MR systems, was designed by Hitachi Medical Systems America Inc. (Twinsburg, OH, USA) and Hitachi Medical Corp. (Tokyo) and is manufactured by the Tokyo branch. A 0.3 T field-strength magnet and phased array coils deliver high image quality without the need for a tunnel-type high-field system, thereby significantly improving patient comfort not only for claustrophobic patients.

Device Information and Specification

CLINICAL APPLICATION

Whole body

CONFIGURATION

Vertical Field, Open MRI

0.3T

QD Head, MA Head and Neck, QD C-Spine, MA or QD Shoulder, MA CTL Spine, QD Knee, Neck, QD TMJ, QD Breast, QD Flex Body (4 sizes), Small and Large Extrem., QD Wrist, MA Foot and Ankle (WIP), PVA (WIP)

SYNCHRONIZATION

Cardiac gating, ECG/peripheral, respiratory gating (2 modes)

PULSE SEQUENCES

SE, GE, GR, IR, FIR, STIR, FSE, ss-FSE, FLAIR, EPI -DWI, SE-EPI, ms - EPI, SSP, MTC, SARGE, RSSG, TRSG, MRCP, Angiography: CE, 2D/3D TOF

IMAGING MODES

Single, multislice, volume study

SE: 30 - 10,000msec GE: 20 - 10,000msec IR: 50 - 16,700msec FSE: 200 - 16,7000msec

SE : 10 - 250msec IR: 10 -250msec GE: 5 - 50 msec FSE: 15 - 2,000

SINGLE/MULTI SLICE

0.05 sec/image (256 x 256)

FOV

5cm to 42 cm continuous

2D: 2 - 100 mm; 3D: 0.5 - 5 mm

1280 x 1024

MEASURING MATRIX

512 x 512

PIXEL INTENSITY

Level Range: -2,000 to +4,000

Sub millimeter

MAGNET TYPE

Self-shielded, permanent

BORE DIAMETER
or W x H

110 x 43 cm

MAGNET WEIGHT

15,700 kg

H*W*D

79 x 111 x 73 cm

POWER REQUIREMENTS

208/220/240 V, single phase

COOLING SYSTEM TYPE

Air-cooled

0.3 T

STRENGTH

15 mT/m

5 GAUSS FRINGE FIELD

2.0 m lateral, 2.5 m vert./long

Auto shimming, 3-axis/patient, and volume shim

• View the DATABASE results for 'AIRIS II™' (2).

Implant and Prosthesis pool - Diffusion Weighted Imaging - Collections - Lung Imaging - Crystallography - Anatomy

MSK-Extreme™

From ONI Medical Systems, Inc.;
MSK-Extreme™MRI system is a dedicated high field extremity imaging device, designed to provide orthopedic surgeons and other physicians with detailed diagnostic images of the foot, ankle, knee, hand, wrist and elbow, all with the clinical confidence and advantages derived from high field, whole body MRI units. The light weight (less than 650 kg) of the OrthOne System performs rapid patient studies, is easy to operate, has a patient friendly open environment and can be installed in a practice office or hospital, all at a cost similar to a low field extremity machine.
New features include a more powerful operating system that offers increased scan speed as well as a 160-mm knee coil with higher signal to noise ratio, and the option of a CD burner.

Device Information and Specification

CLINICAL APPLICATION

Dedicated extremity imaging

CONFIGURATION

Open MRI magnet

16 cm knee, 18 cm lower extremity;; 12.3 cm upper extremity, additional high resolution v-SPEC Coils: 80 mm, 100 mm, or 145 mm.

SYNCHRONIZATION

PULSE SEQUENCES

SE, FSE, GE2D, GE3D, Inversion recovery (IR), Driven Equilibrium, Fat Saturation (FS), STIR, MT, PD, Flow Compensation (FC), RF spoiling, MTE, No Phase Wrap (NPW)

IMAGING MODES

Scout, single, multislice, volume

10-10,000ms; 1ms steps

5-150ms; 1 ms steps

SINGLE/MULTI SLICE

2D less than 200 msec/image

FOV

4cm-16cm

2D: 2mm-10mm/.1mm incr.

Up to 1,000x1,000

MEASURING MATRIX

X/Y: 64-512; 2 pixel steps

PIXEL INTENSITY

4,096 grey lvls; 256 lvls in 3D

0.05mm

MAGNET TYPE

Superconducting

BORE DIAMETER
or W x H

28cm ID x 50cm L

MAGNET WEIGHT

635 kg

H*W*D

146 x 69 x 84 cm

POWER REQUIREMENTS

115VAC, 1phase, 20A; 208VAC, 3 phase, 30A

COOLING SYSTEM TYPE

LHe with 2 stage cold head

CRYOGEN USE

Negligible

1.0 T

STRENGTH

15 mT/m

5-GAUSS FRINGE FIELD

1.25m radial x 1.8m axial

Passive

Further Reading:

Basics:

	MSK Extreme Brochure(.pdf) by www.nova-logic.ch

	MSK Extreme Specifications(.pdf) by www.nova-logic.ch

NMR - Patient Information - Brain MRI - Coils - Contrast Agents - Collections

Intera Achieva 1.5T™

www.medical.philips.com/main/products/mri/products/intera_achieva/

From Philips Medical Systems;
The clinical capabilities of MR will further expand. Inside and out, the Achieva is a friendly, open system designed for optimal patient comfort and maximized workflow with high functionality. The Achieva 1.5T can be upgraded to Achieva I/T, with three configurations optimized for MR guided interventions and therapy:

•

Achieva I/T

•

Achieva I/T Neurosurgery

•

Achieva I/T Cardiovascular (or XMR - combining an Achieva 1.5T CV system and an X-Ray system)

Device Information and Specification

CLINICAL APPLICATION

Whole body

CONFIGURATION

Short bore compact

Standard: Head, body, C1, C3; Optional: Small joint, flex-E, flex-R, endocavitary (L and S), dual TMJ, knee, neck, T/L spine, breast; optional phased array: Spine, pediatric, 3rd party connector; Optional SENSEâ„¢ coils for all applications

Optional

SYNCHRONIZATION

ECG/peripheral: Optional/yes, respiratory gating

PULSE SEQUENCES

SE, Modified-SE, IR (T1, T2, PD), STIR, FLAIR, SPIR, FFE, T1-FFE, T2-FFE, Balanced FFE, TFE, Balanced TFE, Dynamic, Keyhole, 3D, Multi Chunk 3D, Multi Stack 3D, K Space Shutter, MTC, TSE, Dual IR, DRIVE, EPI, Cine, 2DMSS, DAVE, Mixed Mode; Angiography: Inflow MRA, TONE, PCA, CE MRA

IMAGING MODES

Single Slice 2D , Multi Single Slice 2D, Multi Slice 2D, 3D, Multi Chunk 3D, Multi Stack 3D

FOV

Over 40 cm

0.05 mm

128 x 128, 256 x 256,512 x 512,1024 x 1024 (64 for Bold img)

MEASURING MATRIX

Variable in 1% increments

PIXEL INTENSITY

Lum.: 120 cd/m2; contrast: 150:1

Variable (op. param. depend.)

MAGNET TYPE

Superconducting

BORE DIAMETER

60 x 60 cm

POWER REQUIREMENTS

380/400 V

CRYOGEN USE

0.03 L/hr helium

1.5 T

STRENGTH

up to 66 mT/m

5-GAUSS FRINGE FIELD

2.4 m / 3.8 m

Passive and dynamic

• View the DATABASE results for 'Intera Achieva 1.5T™' (2).

Excelart XG™ with Pianissimo

IR - Stent - Safety pool - Spectroscopy pool - Raman Spectroscopy - Resources

http://www.medical.toshiba.com/clinical/radiology/15texcelart.htm

From Toshiba America Medical Systems Inc.;
the EXCELART is a superconducting whole body MRI system with a short wide-bore magnet, operating at 1.5 T. It features powerful high-speed gradients with a revolutionary gradient acoustic noise reduction system: Pianissimo. The dramatic reduction of gradient acoustic noise by Pianissimo greatly enhances patient comfort during exams. The standard array platform and a wide range of array coils ensure excellent images. A powerful 64-bit RISC-based computer system and newly developed array processor realize high productivity.

Device Information and Specification

CLINICAL APPLICATION

Whole body

CONFIGURATION

Cylindrical Wide Short Bore

Body, head, spine, knee, neck, TMJ, extremity, breast, shoulder