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MRI Resources 
Used and Refurbished MRI Equipment - Developers - Pregnancy - Process Analysis - Most Wanted - MRI Technician and Technologist Jobs
 
Panorama 0.23T™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From Philips Medical Systems;
www.medical.philips.com/main/products/mri/products/panoramafamily/panorama0.23t_rt/features/ the Panorama 0.23 T, providing a new design optimized for patient comfort, faster reconstruction time than before (300 images/second) and new gradient specifications. Philips' Panorama 0.23 T I/T supports MR-guided interventions, resulting in minimally invasive procedures, more targeted surgery, reduced recovery time and shorter hospital stays. Optional OptoGuide functionality enables real-time needle tracking. Philips' Panorama 0.23 T™ R/T is the first and only open MRI system to enable radiation therapy planning using MR data sets. The Panorama also features the new and consistent Philips User Interface, an essential element of the Vequion clinical IT family of products and services.

Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Open MRI/C-arm
SURFACE COILS Head, head-neck, extremity M-L, neck, body/spine S-XL, shoulder, bilateral breast, wrist, TMJ, flex XS-S-M-L-XL-XXL
SPECTROSCOPY No
SYNCHRONIZATION ECG/peripheral: Optional/optional, respiratory gating
PULSE SEQUENCES SE, FE, IR, FFE, DEFFE, DESE, TSE, DETSE, Single shot SE, DRIVE, Balanced FFE, MRCP, Fluid Attenuated Inversion Recovery, Turbo FLAIR, IR-TSE, T1-STIR TSE, T2-STIR TSE, Diffusion Imaging, 3D SE, 3D FFE, MTC;; Angiography: CE-ANGIO, MRA 2D, 3D TOF
IMAGING MODES Single, multislice, volume study, dynamic, SIMEX, multi chunk 3D, multiple stacks
TR Min. 6.2 msec
TE Min. 2.8 msec
SINGLE/MULTI SLICE 50 slices/sec
FOV 0.4 cm - 40 cm
SLICE THICKNESS 0.4 mm
DISPLAY MATRIX 1280 X 1024
MEASURING MATRIX Up to 512 x 512
PIXEL INTENSITY 256 gray scale
SPATIAL RESOLUTION 0.78 mm
MAGNET TYPE Resistive/iron core
BORE DIAMETER
or W x H
Open x 46 cm x infinite (side-first patient entry)
MAGNET WEIGHT 13110 kg
H*W*D 196 x 121 x 176 cm
POWER REQUIREMENTS 400/480 V
COOLING SYSTEM TYPE Closed loop chilled water (chiller included)
CRYOGEN USE N/A
FIELD STRENGTH 0.23 T
STRENGTH 19 mT/m
5-GAUSS FRINGE FIELD 2.4 m / 3.7 m
SHIMMING Passive/active
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Further Reading:
  News & More:
Magnetic resonance imaging guided musculoskeletal interventions at 0.23T: Chapter 4. Materials and methods
2002
MRI Resources 
MRI Training Courses - Implant and Prosthesis pool - Libraries - Distributors - Coils - Case Studies
 
Panorama 1.0T™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From Philips Medical Systems;
www.medical.philips.com/main/products/mri/products/panoramafamily/panorama1.0t_rt/features/ this active shielded member of the Panorama product line combines the advantages of one 1.0 T system's with the possibilities of an open MRI system. The open design helps ease anxiety for claustrophobic patients and increased patient comfort whereby the field strength provides spectacular image quality and fast patient throughput.
Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Vertical Field open MRI post design
SURFACE COILS Vertically opposed solenoids, head, head-neck, extremity, neck, body/spine M-XL, shoulder, bilateral breast, wrist, TMJ, flex XS-S-M-L-XL-XXL
SPECTROSCOPY No
SYNCHRONIZATION ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES SE, FE, IR, STIR, FFE, DEFFE, DESE, TSE, DETSE, Single shot SE, DRIVE, Balanced FFE, MRCP, FLAIR, Turbo FLAIR, IR-TSE, T1-STIR TSE, T2-STIR TSE, Diffusion Imaging, 3D SE, 3D FFE, Contrast Perfusion Analysis, MTC;; Angiography: CE-ANGIO, MRA 2D, 3D TOF
IMAGING MODES Single, multislice, volume study, dynamic, SIMEX, multi chunk 3D, multiple stacks
TR Min. 4.6 msec
TE Min. 2.3 msec
SINGLE/MULTI SLICE 50 slices/sec
FOV 0.4 cm - 42 cm
SLICE THICKNESS 0.4 mm
DISPLAY MATRIX 1280 X 1024
MEASURING MATRIX Up to 512 x 512
PIXEL INTENSITY 256 gray scale
SPATIAL RESOLUTION 0.78 mm
MAGNET TYPE Superconducting
BORE DIAMETER
or W x H
Open x 47 cm x infinite (side-first patient entry)
MAGNET WEIGHT
H*W*D
POWER REQUIREMENTS 400/480 V
COOLING SYSTEM TYPE Liquid helium
CRYOGEN USE
FIELD STRENGTH 1.0 T
STRENGTH 20 mT/m
5-GAUSS FRINGE FIELD
SHIMMING Passive/active
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• View the DATABASE results for 'Panorama 1.0T™' (2).Open this link in a new window

MRI Resources 
Pacemaker - Anatomy - Devices - MRI Training Courses - Libraries - Jobs
 
Intera Achieva CV™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From Philips Medical Systems;
www.medical.philips.com/main/products/mri/products/intera_achievacv/ The Intera Achieva CV is focused on cardiovascular imaging research and development, generating technology on the cutting edge for modern clinical needs, like easy coronary artery imaging, the evaluation of flow effects in vessels and peripheral angiography with optimal resolution per station.

Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION Short bore compact
SURFACE COILS Standard: Head, body, cardiac, optional phased array: Spine, pediatric, 3rd party connector; Optional SENSE™ coils for all applications
SPECTROSCOPY 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 50 cm
SLICE THICKNESS 0.05 mm
DISPLAY MATRIX 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
SPATIAL RESOLUTION Variable (op. param. depend.)
MAGNET TYPE Superconducting
BORE DIAMETER
or W x H
60 x 60 cm
POWER REQUIREMENTS 380/400 V
CRYOGEN USE 0.03 L/hr helium
FIELD STRENGTH 1.5 T
STRENGTH up to 33 mT/m
5-GAUSS FRINGE FIELD 2.4 m / 3.8 m
SHIMMING Passive and dynamic
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• View the DATABASE results for 'Intera Achieva CV™' (2).Open this link in a new window

 
Further Reading:
  News & More:
Coronary Artery Disease: Combined Stress MR Imaging Protocol-One-Stop Evaluation of Myocardial Perfusion and Function1
   by radiology.rsnajnls.org    
MRI Resources 
MR Guided Interventions - Guidance - Implant and Prosthesis - MR Myelography - Sequences - MRI Technician and Technologist Career
 
Knee MRI
 
Knee MRI, with its high soft tissue contrast is one of the main imaging tools to depict knee joint pathology. MRI allows accurate imaging of intra-articular structures such as ligaments, cartilage, menisci, bone marrow, synovium, and adjacent soft tissue.
Knee exams require a dedicated extremity coil, providing a homogenous imaging volume and high SNR to ensure best signal coverage. A complete knee MR examination includes for example sagittal and coronal T1 weighted, and proton density weighted pulse sequences +/- fat saturation, or STIR sequences. For high spatial resolution, maximal 4 mm thick slices with at least an in plane resolution of 0.75 mm and small gap are recommended. To depict the anterior cruciate ligament clearly, the sagittal plane has to be rotated 10 - 20° externally (parallel to the medial border of the femoral condyle). Retropatellar cartilage can bee seen for example in axial T2 weighted gradient echo sequences with Fatsat. However, the choice of the pulse sequences is depended of the diagnostic question, the used scanner, and preference of the operator.
Diagnostic quality in knee imaging is possible with field strengths ranging from 0.2 to 3T. With low field strengths more signal averages must be measured, resulting in increased scan times to provide equivalent quality as high field strengths.
More diagnostic information of meniscal tears and chondral defects can be obtained by direct magnetic resonance arthrography, which is done by introducing a dilute solution of gadolinium in saline (1:1000) into the joint capsule. The knee is then scanned in all three planes using T1W sequences with fat suppression. For indirect arthrography, the contrast is given i.v. and similar scans are started 20 min. after injection and exercise of the knee.
Frequent indications of MRI scans in musculoskeletal knee diseases are:
e.g., meniscal degeneration and tears, ligament injuries, osteochondral fractures, osteochondritis dissecans, avascular bone necrosis and rheumatoid arthritis.
See also Imaging of the Extremities and STIR.
 
Images, Movies, Sliders:
 Sagittal Knee MRI Images T1 Weighted  Open this link in a new window
      

 Anatomic MRI of the Knee 2  Open this link in a new window
    
SlidersSliders Overview

 Knee MRI Coronal Pd Spir 001  Open this link in a new window
 Sagittal Knee MRI Images STIR  Open this link in a new window
      

 Axial Knee MRI Images T2 Weighted  Open this link in a new window
 Anatomic MRI of the Knee 1  Open this link in a new window
    
SlidersSliders Overview

 
Radiology-tip.comArthrography,  Bone Scintigraphy
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Radiology-tip.comMusculoskeletal and Joint Ultrasound,  Sonography
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• View the DATABASE results for 'Knee MRI' (4).Open this link in a new window


• View the NEWS results for 'Knee MRI' (4).Open this link in a new window.
 
Further Reading:
  Basics:
Musculoskeletal MRI at 3.0 T: Relaxation Times and Image Contrast
Sunday, 1 August 2004   by www.ajronline.org    
Knee, Anterior Cruciate Ligament Injuries (MRI)
Tuesday, 28 March 2006   by www.emedicine.com    
  News & More:
Changes of the Posterior Meniscal Horn Height During Loading: An In Vivo Magnetic Resonance Imaging Study
Thursday, 10 January 2008   by www.orthosupersite.com    
Financial Interest May Motivate Higher Knee MRI Referral
Wednesday, 4 December 2013   by www.doctorslounge.com    
Study: MRI scans of knees can be used for biometric identification
Wednesday, 23 January 2013   by www.wired.co.uk    
MRI Resources 
Open Directory Project - MRI Reimbursement - Raman Spectroscopy - Devices - MRI Technician and Technologist Schools - Online Books
 
O-SCAN™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.
 
www.fonar.com/standup.htm www.fonar.com/standup.htm O-scan is manufactured and distributed by Esaote SpA
O-scan is a compact, dedicated extremity MRI system designed for easy installation and high throughput. The complete system fits in a 9’ x 10’ room, doesn’t need for RF or magnetic shielding and it plugs in the wall. The 0.31T permanent magnet along with dual phased array RF coils, and advanced imaging protocols provide outstanding image quality and fast 25 minute complete examinations.
Esaote North America is the exclusive distributor of the O-scan system in the USA.

Device Information and Specification
CLINICAL APPLICATION Dedicated Extremity
CONFIGURATION Closed
SURFACE COILS Dual phased array knee, hand, foot//ankle/elbow
PULSE SEQUENCES SE, HSE, HFE, GE, 2dGE, ME, IR, STIR, Stir T2, GESTIR, TSE, TME, FSE STIR, FSE (T1, T2), X-Bone, Turbo 3DT1, 3D SHARC, 3D SST1, 3D SST2
IMAGING MODES 2D, 3D multi-plane, half echo, half scan, real time
TR 10 - 10,000 msec.
TE 6 - 220 msec.
SINGLE SLICE 0.1 sec.
MULTI SLICE 0.1 sec.
FOV 14 cm
SLICE THICKNESS 2D: 2mm - 10 mm, 3D: 0.6 - 10 mm
DISPLAY MATRIX 512 x 512
MEASURING MATRIX 512 x 512 max.
PIXEL INTENSITY 4,096 grey levels
SPATIAL RESOLUTION 0.2 mm
MAGNET TYPE Permanent - NdFeB
MAGNET WEIGHT 2,733 lbs
POWER REQUIREMENTS 100/110/200/220/230/240
FIELD STRENGTH 0.31T
STRENGTH 20 mT/m
5 GAUSS FRINGE FIELD, radial/axial 67 cm / 75 cm
SHIMMING passive
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MRI Resources 
Distributors - Functional MRI - Intraoperative MRI - Open Directory Project - Examinations - Cardiovascular Imaging
 
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PET-MRI is :
a valuable new tool 
worth to develop more 
unnecessary 
too expensive 
only for research 
the replacement for PET-CT 
for vets only 

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