MRI Comparison: Magnetom Espree vs Avanto

MRI COMPARISON CHART
Siemens Magnetom Espree vs. Siemens Magnetom Avanto

MRI Model	> Magnetom Espree	> Magnetom Avanto
Company	Siemens Healthcare	Siemens Healthcare
FDA Clearance	YES	YES
Clinical Application	Whole Body	Whole Body
>> MAGNET
Configuration	Ultra-short open bore	Short bore
Type	Superconducting	Superconducting
Field Strength	1.5 T	1.5 T
Homogeneity (35 or 40cm DSV), Vrms	<5ppm @ 40cm DSV (24 plane plot)	1.2ppm typ. @ 40 cm DSV (24 plane plot)
5-Gauss Fringe Field Radial Axial, m	2.5 4	2.5 4
Cryogen Refill Period	Approximately 10 years	Approximately 10 years
Finished Gantry Weight, kg (Covered)	5,100 in operation	5,500 in operation
Finished (Covered) Gantry Dimension, cm (L x W x H)	125 x 230 x 225	160 x 230 x 230

MRI Model	> Magnetom Espree	> Magnetom Avanto
>> PATIENT COMFORT
Minimum Finished Bore L-R Diameter, cm (Closed Magnet)	120 without covers	150 without covers
Minimum A-P Dimension w/ Table Inserted	70 cm	60 cm
Table Width (moving portion)	54 cm	54 cm
Table Capacity	550 lbs	550 lbs
Table Vertical Travel, cm (Min height-scanning height)	47 Min H	47 Min H
Table Lateral Movement Range	243 cm	243 cm
Patient Cooling Features	In-bore ventilation (3 levels)	In-bore ventilation (3 levels)
Patient Illumination Features	In-bore lighting (3 levels)	In-bore lighting (3 levels)
Patient Operator Call & Intercom	YES	YES
>> GRADIENT
Maximum Amplitude Single Axis, mTm	33	45
Maximum Slew Rate Single Axis, Tms	170	200
Cooling System Type	Water	Water
>> COMPUTER SYSTEM
CPU Type	Intel Xeon 2x Dual Core	Intel Xeon 2x Quad-Core
CPU Memory Size, MB	4 GB RAM	4 GB RAM
Reconstruction Hardware	2 x AMD Opt. 252 CPU (Linux 64 bit)	1 Intel Xeon Quad Core
Reconstruction Memory Size	180GB HD, 8GB RAM	438GB HD, 8GB RAM
Image Storage Memory Type	CD-ROM, DVD-R	CD-ROM, DVD-R
Image Storage Media Image Capacity	25,000 256 x 256	25,000 256 x 256
DICOM 3.0 Classes Supported	YES	YES
Display Monitor Displayable Area (L x W), cm	1280 x 1024 full screen	1280 x 1024 full screen
Simultaneous Scan & Reconstruction	YES	YES

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MRI Model	> Magnetom Espree	> Magnetom Avanto
>> COMPUTER SYSTEM
CPU Type	Intel Xeon 2x Dual Core	Intel Xeon 2x Quad-Core
CPU Memory Size, MB	4 GB RAM	4 GB RAM
Reconstruction Hardware	2 x AMD Opt. 252 CPU (Linux 64 bit)	1 Intel Xeon Quad Core
Reconstruction Memory Size	180GB HD, 8GB RAM	438GB HD, 8GB RAM
Image Storage Memory Type	CD-ROM, DVD-R	CD-ROM, DVD-R
Image Storage Media Image Capacity	25,000 256 x 256	25,000 256 x 256
DICOM 3.0 Classes Supported	YES	YES
Display Monitor Displayable Area (L x W), cm	1280 x 1024 full screen	1280 x 1024 full screen
Simultaneous Scan & Reconstruction	YES	YES
>> RF SYSTEM
Channels (Min, Max Configuration)	8, 18, 32	8, 18, 32
Parallel Imaging Features (name, imageK-space)	iPAT, mSENSE & GRAPPA	iPAT, mSENSE & GRAPPA
>> COILS (StandardOptional, #of elements, RF channels, parallel imaging support)
Brain	NS	NS
Head	12, 32 opt; 8, 18, 32 opt; iPAT	12, 32 opt; 8, 18, 32 opt; iPAT
Spine	24; 8, 18, 32 opt; iPAT	24; 8, 18, 32 opt; iPAT
Neck	4, 16 opt; 8, 18, 32 opt; iPAT	4, 16 opt; 8, 18, 32 opt; iPAT
Shoulder	Opt 4, 4chan, iPAT	Opt 4, 4chan, iPAT
Body Torso	6, 32; 8, 18, 32 opt; iPAT	6, 32; 8, 18, 32 opt; iPAT
Knee	Opt 8; 8 chan; iPAT	Opt 8, 15; 8, 15 chan; iPAT
Cardiac	6; 8, 18, 32 opt; iPAT	6; 8, 18, 32 opt; iPAT
Breast	Opt 4, 7, 16; 4, 7, 16; iPAT	Opt 4, 7, 16; 4, 7, 16; iPAT
Wrist	Opt 8; 8 chan; iPAT	Opt 8; 8 chan; iPAT
Neurovascular	Up to 28 chan in combination w/ Tim; iPAT	Up to 28 chan in combination w/ Tim; iPAT
Peripheral Vascular	Opt 16; 8, 18, 32 opt; iPAT	Opt 16; 8, 18, 32 opt; iPAT
TMJ	Opt 2; 8, 18, 32 opt; iPAT	Opt 2; 8, 18, 32 opt; iPAT
Others	Foot ankle coil 8 chan	Foot ankle coil 8 chan
>> IMAGING FEATURES
Noncontrast Angiography	YES	YES
Spectroscopy	CSI & SVS	CSI & SVS
Motion Compensating Radial Techniques	Std 2-D PACE	Std 2-D PACE
Brain Volume Imaging	YES	YES
Minimum Repetition Time	3-D GRE: 1.6 (256 matrix)	3-D GRE: 0.91 (256 matrix)
Minimum Echo Time	3-D GRE: 0.66 (256 matrix)	3-D GRE: 0.22 (256 matrix)
FOV (AP, RL, HF, Min to Max)	0.5cm – 45cm	0.5cm – 50cm
>> POWER REQUIREMENTS
Voltage (line voltage, phases)	380 400 420 440 460 480V	380 400 420 440 460 480V
kVA	85	110
AC, BTUhr (for entire system)	10 kW34, 146	10kW34, 146

The Bottom Line: Both of these MRI systems are excellent and would enhance any practice, hospital, or imaging center’s profile and clinical capacity. What stands out for the Espree is the 70cm bore, which is an important feature for most diagnostic centers. What makes the Espree difficult is the supply and the cost. These units are difficult to locate on the used market and there are great deals of people who are waiting to acquire such a nice MRI. The Avanto is less expensive but can also prove to be difficult to locate on the used market. So if your budget and timeframe allow, the Espree may be the MRI for you.

If you need more information, feel free to contact us anytime.

Posted by:
Bobby Serros
MRI Specialist
407 438-7847