Scanner Comparisons

System Name	UWMR2	UWMR3	UWMR4	UWMR5	UWMR6	UWMR7
Location	E1/368 UH	E1/344 UH	F2/380E UH	E1/321 UH	E1/E302 UH	K4/B32 UH
Phone Number	262-6073	262-6073	261-1734	263-8742	265-8836	504-4836
System ID	608262MR2	608262MR3	608263MR4I	608263MR5W	608RIOMR1	608ONCMR1
Magnetic Field Strength	1.5 T	1.5 T	1.5 T	3.0 T	3.0 T	1.5 T
Scanner Type	Signa Artist	Signa Artist	Optima MR 450w	Signa Architect	Signa Premier	Signa Artist
Software Revision	MR30.1	MR30.1	DV26	MR30.0	MR30.1	MR30.0
Gradient Type	XRMw	XRMw	XRMw	XRMw	HRMw	XRMw
Peak Gradient Strength (mT/m)	44	44	44	44	80	44
Peak Gradient Slew Rate (mT/m/msec)	200	200	200	200	200	200
Number of Receivers	128	128	32	128	146	128
Multi-Nuclear Spectroscopy (MNS) Installed	No	No	No	No	No	No
Bore Diameter (cm)	70	70	70	70	70	70

System Name	AFCHMR1
Location	1132 AFCH
Phone Number	890-7121
System ID	608CHILDMR1
Magnetic Field Strength	3.0 T
Scanner Type	Discovery MR 750w
Software Revision	MR30.1
Gradient Type	XRMw
Peak Gradient Strength (mT/m)	44
Peak Gradient Slew Rate (mT/m/msec)	200
Number of Receivers	128
Multi-Nuclear Spectroscopy (MNS) Installed	No
Bore Diameter (cm)	70

System Name	SMCMR1	SMCMR2	SMCMR3	SMCMR4
Location	2283	2410A	2434	2414
	Science Dr Medical Center	Science Dr Medical Center	Science Dr Medical Center	Science Dr Medical Center
Phone Number	265-8337	262-8711	890-9855	262-9182
System ID	608267SMC	608263WAIS	608265MR750W	608262RP4
Magnetic Field Strength	1.5 T	1.5 T	3.0 T	3.0 T
Scanner Type	Signa HDxt	Signa HDxt	Signa Architect	Discovery MR 750
Software Revision	HD23	HD23	MR30.1	MR29.1
Gradient Type	EchoSpeed	EchoSpeed	XRMw	XRM
Peak Gradient Strength (mT/m)	33	33	44	87
Peak Gradient Slew Rate (mT/m/msec)	120	120	200	346
Number of Receivers	8	8	128	32
Multi-Nuclear Spectroscopy (MNS) Installed	No	No	No	No
Bore Diameter (cm)	60	60	70	60

System Name	EMHMR1	EMHMR2	EMCMR1	EMCMR2	EMCMR3
Location	1044 EMH	1038 EMH	B1818 EMC	B1814 EMC	C1265 EMC
Phone Number	(608) 234-6668	(608) 234-6668	(608) 914-0118	(608) 914-0119
System ID	608890MR450W	608890MR750	608EMCMR1	608EMCMR2
Magnetic Field Strength	1.5 T	3.0 T	1.5 T	1.5 T	1.5 T
Scanner Type	Signa Artist	Discovery MR 750	Signa Artist	Signa Artist	Signa Artist
Software Revision	MR30.1	MR29.1	MR30.1	MR30.1	MR30.1
Gradient Type	XRMw	XRM	XRMw	XRMw	XRMw
Peak Gradient Strength (mT/m)	44	87	44	44	44
Peak Gradient Slew Rate (mT/m/msec)	200	346	200	200	200
Number of Receivers	128	32	128	128	128
Multi-Nuclear Spectroscopy (MNS) Installed	No	No	No	No	No
Bore Diameter (cm)	70	60	70	70	70

System Name	WIMRMR1	WIMRMR2	WIMRPETMR1
Location	1247 WIMR	1255 WIMR	B1258 WIMR
Phone Number	262-8632	261-1940	262-6115
System ID	608262WIMRMR1	608WIMRMR2	608262PETMR1
Magnetic Field Strength	3.0 T	3.0 T	3.0 T
Scanner Type	Signa Premier	Signa Premier	Signa PET/MR
Software Revision	MR30.1	MR30.1	MR30.1
Gradient Type	HRMw	HRMw	XRMw
Peak Gradient Strength (mT/m)	80	80	44
Peak Gradient Slew Rate (mT/m/msec)	200	200	200
Number of Receivers	146	146	32
Multi-Nuclear Spectroscopy (MNS) Installed	No	No	Yes
Bore Diameter (cm)	70	70	60

System Name	SPMR1	SPMR2	HERIMR1
Location	R2338 1 S Park St	R2337 1 S Park St	6001 Research Park Blvd
Phone Number	(608) 287-2648	(608) 287-2648	(608) 232-3340
System ID	608287MR2	608287MR1	608HERIMR
Magnetic Field Strength	1.5 T	1.5 T	3.0 T
Scanner Type	Signa Explorer Lift	Signa Artist	Discovery MR 750
Software Revision	SV25.1	MR30.1	MR29.1
Gradient Type	XFD	XRMw	XRM
Peak Gradient Strength (mT/m)	33	44	87
Peak Gradient Slew Rate (mT/m/msec)	120	200	346
Number of Receivers	16	32	32
Multi-Nuclear Spectroscopy (MNS) Installed	No	No	No
Bore Diameter (cm)	60	70	60

Imaging Applications

Both 1.5T and 3T MRI systems at WIMR are accredited by the ACR (American College of Radiology) MRI accreditation program, and the ACRIN (ACR Imaging Network) CQIE (Centers for Quantitative Imaging Excellence) program. MRI systems at the CSC are also ACR accredited for MRI. One system at the CSC and one system at the Research Park Clinic are ACR accredited for breast MRI. Anatomic imaging is available for neuro, cardiac, MSK, abdominal, thoracic, peripheral, vascular, breast, and spine applications. Imaging can be performed as multi-slice 2D and volumetric 3D acquisitions (including BRAVO and CUBE for 3D isotropic T1- and T2-weighted imaging). Parallel imaging (ASSET/ARC) is available for many imaging sequences. Gadolinium-based contrast agents can be used for an extra charge, following screening for NSF safety. Available FDA-approved Gd-based agents are Omniscan (gadodiamide), MultiHance (gadobenate dimeglumine), and Ablavar (gadofosveset trisodium). Imaging can be performed after the administration of a contrast agent for tumor imaging. FDA-approved contrast agents supplied by the investigator can be also used for human subjects. Contrast agents that are not FDA-approved and supplied by the investigator can be used after appropriate IACUC approval for animal subjects.

General

Fat/Water Separated Imaging

In addition to conventional fat saturation methods, fat/water separated imaging (i.e., generation of fat-only and water-only images) can be produced using the GE Healthcare IDEAL and Flex sequence variations.

Dynamic Contrast Enhanced Perfusion Imaging

DCE (T1-weighted) perfusion imaging using a Gd-based contrast agent is most commonly used for imaging tumor perfusion. Perfusion maps can be generated as part of image analysis provided by the IMAC.

MR Spectroscopy and Spectroscopic Imaging

Magnetic Resonance Spectroscopy (MRS) and Spectroscopic Imaging (MRSI) are available for neuro, breast, liver, and prostate applications.

Realtime Imaging

Interactive realtime imaging can be performed using the rtHawk-based system from HeartVista, Inc. which interfaces with the GE MRI systems. Applications include cardiac and vascular imaging, and neuro and body MR-guided interventions. While not FDA-approved, this system has been extensively tested, and is used in several ongoing research projects.

Neuro, Spine, and MSK

Dynamic Susceptibility Contrast Perfusion Imaging

DSC (T2*-weighted) perfusion imaging can be performed following injection of a Gd-based contrast agent. This type of imaging is commonly used in the clinic to assess the effects of stroke. Perfusion parameter maps, including the parameters rCBF, rCBV, FMT, Tmax and MTT, can be produced using locally-developed post-processing software, or software supplied by GE.

ASL Perfusion Imaging

Perfusion imaging can be performed without exogenous contrast agents for the assessment of cerebral blood flow in human subjects using Arterial Spin Labeling.

Susceptibility-Weighted Imaging

Susceptibility-Weighted Imaging (SWI) is available using the SWAN technique.

Diffusion-Weighted Imaging and Diffustion-Tensor Imaging

Diffusion-Weighted Imaging (DWI) and Difusion-Tensor Imaging (DTI, including tractography) can be performed to assess the restriction of water diffusion in tissue. Basic online diffusion parameter maps (ADC, FA) are automatically generated. DTI tractograms can be reconstructed as part of image analysis provided by the IMAC.

Functional Neuro MRI (fMRI)

Functional Neuro MRI (fMRI) is available at WIMR for research applications, and at other sites for clinical applications. Dedicated research staff acquire and process fMRI data. Commonly used paradigms include language and motor tasks such as word generation and unilateral finger tapping. Assistance is available for development of new fMRI tasks. Research fMRI studies are processed off-line using common software packages such as AFNI. Clinical fMRI studies are processed using PRISM.

Neuronavigation

Using the FDA-approved Clearpoint™ system from MRI Interventions, image-guided targeting of deep structures in the brain is possible, and can be used to guide interventions including DBS electrode placement and drug infusions.

Imaging near Orthopedic Implants

With the MAVRIC SL imaging option from GE Healthcare, imaging near orthopedic implants, such as knee and hip implants, is greatly improved by acquiring multiple image volumes with discrete frequency offsets, view-angle tilting, and specialized reconstruction techniques.

Body and Breast

Liver Fat-Fraction

Quantitative assessment of liver fat-fraction and iron content can be assessed using the IDEAL-IQ sequence.

Hyper-Polarized Gas Imaging

Facilities are available at WIMR for generating hyper-polarized Helium (He-3) or Xenon (Xe-129) gas for lung and airway imaging. Hyper-polarization of Carbon (C-13) is also available for pre-clinical imaging on the Varian 4.7T system.

Functional Body MRI

Functional Body MR Imaging is available for a wide variety of imaging scenarios. Applications include Renal BOLD and ASL perfusion imaging, quantitative liver imaging using IDEAL IQ, and liver stiffness assessment using MR Elastography (MRE).

Cardiac and Vascular

Cardiac MRI

A full suite of Cardiac MRI techniques is available, including function assessment with 2D FIESTA, real-time perfusion and motion imaging with MR-Echo, cardiac tagging, double- and triple-inversion recovery (Double-/Triple-IR) imaging, myocardial R2*(=1/T2*) mapping for iron overload evaluation, 2D- and 3D-Cardiac IDEAL for water/fat separation, delayed enhancement (DE) / late-gadolinium enhanced (LGE) imaging for myocardial viability imaging,nd 3D Heart for coronary artery imaging.

Vascular Imaging

Dedicated vascular imaging techniques, including MR Angiography (MRA) and MR flow measurements are available. Standard clinical MRA methods including Time-Of-Flight (TOF) MRA, 2D Phase Contrast (PC) MRA, non contrast-enhanced (NCE) Inhance methods from GE Healthcare, and contrast enhanced imaging including TRICKS and Fluoro-Triggered 3D MRA (with ARC parallel imaging and ROSE) are available. PC-VIPR (Phase Contrast with Vastly-undersampled Isotropic Projection Reconstruction Trajectories) is a 3D volumetric flow imaging method, developed at UW-Madison, that while not yet FDA-approved, has been widely tested and validated and is used in multiple research projects. MRA post-processing is available, and can included advanced methods for reconstruction of 3D flow data. Additional vascular imaging methods are under continual development in the MRI lab, and may also be available for research projects.

		UW Location	UH						AFCH	SMC				EMH		EMC			WIMR			1 S Park		HERI
		UW Scanner Name	UWMR2	UWMR3	UWMR4	UWMR5	UWMR6	UWMR7	AFCHMR1	SMCMR1	SMCMR2	SMCMR3	SMCMR4	EMHMR1	EMHMR2	EMCMR1	EMCMR2	EMCMR3	WIMRMR1	WIMRMR2	WIMRMRPET1	SPMR1	SPMR2	HERIMR1
		Software Version	MR30.0	MR30.1	DV26	MR30.0	MR30.1	MR30.0	MR30.1	HD23	HD23	MR30.1	MR29.1	MR29.1	MR29.1	MR30.1	MR30.1	MR30.1	MR30.0	MR30.0	MR30.0	SV25.1	MR30.1	MR29.1
General
		Smart Subscription
		Echo Planar Imaging
		Fiesta 2D
		Fiesta 3D
		2D Fat Sat Fiesta
		3D Fat Sat FIESTA
		ARC
		Multi-Nuclear Spectroscopy
		Spectro Analysis GE
		Enhanced DWI
		IDEAL
		Dual Drive
		DISCO
		HyperSense
		Synthetic DWI
		MUSE
		PROGRES
		DISCO Star
		LAVA Star
		AIR Recon DL
		AIR Recon DL 3D
		AIR Recon DL Propeller
Body & Breast
		LAVA-XV
		LAVA-FLEX
		Body (LAVA) Navigator
		IDEAL IQ
		MRTOUCH (MRE)
		VIBRANT-DE
		Breast Single Voxel Spectroscopy
		Probe 3D Prostate
Cardiac & Vascular
		Fluoro-triggered MRA
		TRICKS
		Inhance 3D Velocity
		Inhance 3D Inflow IR
		Inhance 2D Inflow
		Inhance DeltaFlow
		Tagging
		MR-Echo
		CINE IR
		3D Heart
		Phase-Sensitive MDE
		Black Blood SSFSE
		MDE Plus
		3D Cine
		4D Flow
		Cardiac T1 Mapping
		Cardiac T2 Mapping
Neuro, Spine & MSK
		Spectroscopy/ PROBE
		ProbePRESS
		BRAVO
		Cube T2
		T2 PROPELLER
		DW PROPELLER
		Diffusion Tensor
		FiberTrak
		BrainStat AIF
		3D ASL
		SWAN (T2Star Weighted Angiography)
		BrainWave RT
		BrainWave PA
		T2MAP
		MAVRIC SL
		FOCUS
		PROMO
		Silent MR
		Silent MRA
		Silent T2 Propeller
		Silent DWI
		CUBE Double-IR
		MAGiC
		MP-RAGE
		HyperBand (DTI)
		HyperCUBE
		AIRx – Brain
		AIRx – Knee
		oZTEo
Third-Party Applications
General
		rtHawk (HeartVista)
Body & Breast
		MR Elastography (Mayo)
Neuro, Spine & MSK
		Clearpoint(TM) Neuronavigation
Prototype Applications
Body & Breast
		IDEAL IQ (Research)
Cardiac & Vascular
		PC-VIPR
		CE-MRA-XV
		SSD-FIESTA
		2D Cardiac IDEAL
Neuro, Spine & MSK
		EPImix (Karolinska)
		NeuroMix (Karolinka)