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Result : Searchterm 'Open MRI' found in 1 term [] and 36 definitions []
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Searchterm 'Open MRI' was also found in the following services: 
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News  (36)  Resources  (21)  Forum  (12)  
 
MAGNETOM C™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From Siemens Medical Systems;
www.medical.siemens.com A new, powerful, compact player in MRI. For both, patients and health care professionals, the mid-field has realized a giant step to cost efficient quality care. Obese patients and people with claustrophobia appreciate the comfortable side loading. The smallest pole diameter – 137 cm (54 inches) allows for optimal patient comfort.

Device Information and Specification
CLINICAL APPLICATION Whole body
CONFIGURATION C-shaped open MRI
SURFACE COILS Multi channel imaging, CP Head//Neck Array Coil, Body/Spine Array Coil, large, Transmit Coil
SYNCHRONIZATION ECG/peripheral: Optional/yes, respiratory gating
PULSE SEQUENCES SE, FLASH, FISP, IR, FIR, STIR, TrueIR/FISP, FSE, MT, SS-FSE, MT-SE, MTC, MSE, EPI, PSIF,
IMAGING MODES Single, multislice, volume study, multi angle, multi oblique
TR Min. TR 2.81 ms
TE Min. TE 0.98 ms
DISPLAY MATRIX 512 x 512 full screen display
MEASURING MATRIX 64 x 64 to 512 x 512
FOV 0.5 - 40 cm
MAGNET TYPE Permanent
BORE DIAMETER
or W x H
41 cm vertical gap distance
MAGNET WEIGHT 16000 kg
H*W*D 233 x 206 x 160 cm
FIELD STRENGTH 0.35 T
STRENGTH 24 mT/m
5-GAUSS FRINGE FIELD 2.2 m / 2.2 m
SHIMMING Passive and active
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• Related Searches:
    • MRI Equipment
    • Hardware
    • Device
    • Open MRI
    • Permanent Magnet
 
Further Reading:
  Basics:
Section 2: 510(k) Summary, MAGNETOM C! System Classification Name: Magnetic Resonance Diagnostic(.pdf)
   by www.accessdata.fda.gov    
Searchterm 'Open MRI' was also found in the following services: 
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Radiology  (2) Open this link in a new windowUltrasound  (1) Open this link in a new window
MR Guided InterventionsMRI Resource Directory:
 - MR Guided Interventions -
 
Possible MR guided interventions are breast MRI, liver and bone biopsies. Open MRI is advantageous to guide interventional procedures because this type of MRI scanner provides a better patient access.
Before the MRI guided biopsy is started, all the necessary precautions ensuring normal sterile and safe conditions for an intervention have to be performed. This includes the special safety issues concerning MRI surroundings and special equipment, like non-magnetic biopsy needles, localization tools (e.g. wires to mark lesions prior to surgery with breast MRI guidance) etc.
See also 5 Gauss Line, Contraindications, Low Field MRI, MR Compatibility, Magnetic Resonance Guided Focused Ultrasound and Computer Aided Detection.
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• View the DATABASE results for 'MR Guided Interventions' (8).Open this link in a new window

 
Further Reading:
  Basics:
Bringing innovative technologies together
Monday, 18 November 2013   by www.european-hospital.com    
NeuroArm Robot Promises to Revolutionise MRI-guided Neurosurgery
Wednesday, 7 November 2007   by www.medgadget.com    
Magnetic resonance imaging guided musculoskeletal interventions
at 0.23T
2002
Physics of MRI Safety
   by www.aapm.org    
  News & More:
Siemens, U. of Twente Biopsy Robot Promises Greater Precision, Less Cost
Friday, 22 January 2016   by www.meddeviceonline.com    
New MRI-Guided Catheter Shows Major Potential for Stroke Treatment
Tuesday, 29 December 2015   by www.radiology.ucsf.edu    
C4 Imaging Announces FDA 510(k) Clearance of its Positive-Signal MRI Marker - Sirius™
Friday, 6 December 2013   by www.digitaljournal.com    
Polish study on MRI-ultrasound for targeted prostate biopsy wins CEM award
Tuesday, 12 November 2013   by medicalxpress.com    
Magnetic resonance-guided motorized transcranial ultrasound system for blood-brain barrier permeabilization along arbitrary trajectories in rodents
Thursday, 24 December 2015   by www.ncbi.nlm.nih.gov    
Radiologists Offer Non-surgical Treatment For Early-stage Liver Cancer
Saturday, 5 March 2005   by www.sciencedaily.com    
MRI Resources 
Developers - Absorption and Emission - Colonography - DICOM - - General
 
MRI Procedure
 
The MRI device is located within a specially shielded room (Faraday cage) to avoid outside interference, caused by the use of radio waves very close in frequency to those of ordinary FM radio stations.
The MRI procedure can easily be performed through clothing and bones, but attention must be paid to ferromagnetic items, because they will be attracted from the magnetic field. A hospital gown is appropriate, or the patient should wear clothing without metal fasteners and remove any metallic objects like hairpins, jewelry, eyeglasses, clocks, hearing aids, any removable dental work, lighters, coins etc., not only for MRI safety reasons. Metal in or around the scanned area can also cause errors in the reconstructed images (artifacts). Because the strong magnetic field can displace, or disrupt metallic objects, people with an implanted active device like a cardiac pacemaker cannot be scanned under normal circumstances and should not enter the MRI area.
The MRI machine can look like a short tunnel or has an open MRI design and the magnet does not completely surround the patient. Usually the patient lies on a comfortable motorized table, which slides into the scanner, depending on the MRI device, patients may be also able to sit up. If a contrast agent is to be administered, intravenous access will be placed. A technologist will operate the MRI machine and observe the patient during the examination from an adjacent room. Several sets of images are usually required, each taking some minutes. A typical MRI scan includes three to nine imaging sequences and may take up to one hour. Improved MRI devices with powerful magnets, newer software, and advanced sequences may complete the process in less time and better image quality.
Before and after the most MRI procedures no special preparation, diet, reduced activity, and extra medication is necessary. The magnetic field and radio waves are not felt and no pain is to expect.
Movement can blur MRI images and cause certain artifacts. A possible problem is the claustrophobia that some patients experience from being inside a tunnel-like scanner. If someone is very anxious or has difficulty to lie still, a sedative agent may be given. Earplugs and/or headphones are usually given to the patient to reduce the loud acoustic noise, which the machine produces during normal operation. A technologist observes the patient during the test. Some MRI scanners are equipped with televisions and music to help the examination time pass.
MRI is not a cheap examination, however cost effective by eliminating the need for invasive radiographic procedures, biopsies, and exploratory surgery. MRI scans can also save money while minimizing patient risk and discomfort. For example, MRI can reduce the need for X-ray angiography and myelography, and can eliminate unnecessary diagnostic procedures that miss occult disease.
See also Magnetic Resonance Imaging MRI, Medical Imaging, Cervical Spine MRI, Claustrophobia, MRI Risks and Pregnancy.
For Ultrasound Imaging (USI) see Ultrasound Imaging Procedures at US-TIP.com.

See also the related poll result: 'MRI will have replaced 50% of x-ray exams by'
 
Images, Movies, Sliders:
 Brain MRI Images Axial T2  Open this link in a new window
      

 Circle of Willis, Time of Flight, MIP  Open this link in a new window
    
SlidersSliders Overview

 CE-MRA of the Carotid Arteries  Open this link in a new window
    
SlidersSliders Overview

 Breast MRI Images T2 And T1 Pre - Post Contrast  Open this link in a new window
 Sagittal Knee MRI Images T1 Weighted  Open this link in a new window
      

 
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• View the DATABASE results for 'MRI Procedure' (11).Open this link in a new window


• View the NEWS results for 'MRI Procedure' (6).Open this link in a new window.
 
Further Reading:
  News & More:
Metamaterials boost sensitivity of MRI machines
Thursday, 14 January 2016   by www.eurekalert.org    
Casting patterns make MRI safer
Tuesday, 13 January 2015   by www.engineeringcapacity.com    
Working with MRI machines may cause vertigo: Study
Wednesday, 25 June 2014   by www.cos-mag.com    
Novel Imaging Technique Improves Prostate Cancer Detection
Tuesday, 6 January 2015   by health.ucsd.edu    
MRI Improves Breast Cancer Screening in Older BRCA Carriers
Monday, 5 January 2015   by www.cancernetwork.com    
Searchterm 'Open MRI' was also found in the following services: 
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News  (36)  Resources  (21)  Forum  (12)  
 
MRI Scan
 
The definition of a scan is to form an image or an electronic representation. The MRI scan uses magnetic resonance principles to produce extremely detailed pictures of the body tissue without the need for X-ray exposure or other damaging forms of radiation.
MRI scans show structures of the different tissues in the body. The tissue that has the least hydrogen atoms (e.g., bones) appears dark, while the tissue with many hydrogen atoms (e.g., fat) looks bright. The MRI pictures of the brain show details and abnormal structures (brain MRI), for example, tumors, multiple sclerosis lesions, bleedings, or brain tissue that has suffered lack of oxygen after a stroke. A cardiac MRI scan demonstrates the heart as well as blood vessels (cardiovascular imaging) and is used to detect heart defects with e.g., changes in the thickness and infarctions of the muscles around the heart. With MRI scans, nearly all kind of body parts can be tested, for example the joints like knee and shoulder, lumbar, thoracic and cervical spine, the pelvis including fetal MRI, and the soft parts of the body such as the liver, kidneys, and spleen. The MRI procedure includes three to nine imaging sequences and may take up to one hour.
See also Lumbar Spine MRI, MRI Safety and Open MRI.
 
Images, Movies, Sliders:
 Angulation of Cardiac Planes Cine Images of Septal Infarct  Open this link in a new window
      

Courtesy of  Robert R. Edelman

 Normal Fetus  Open this link in a new window
    

Courtesy of  Robert R. Edelman
 MRI - Anatomic Imaging of the Ankle 1  Open this link in a new window
    
SlidersSliders Overview

 Anatomic Imaging of the Orbita  Open this link in a new window
      

 
Radiology-tip.comDiagnostic Imaging,  Computed Tomography
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Radiology-tip.comUltrasound Imaging,  Sonography
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• View the DATABASE results for 'MRI Scan' (31).Open this link in a new window


• View the NEWS results for 'MRI Scan' (95).Open this link in a new window.
 
Further Reading:
  News & More:
Audio/Video System helps patients relax during MRI scans
Monday, 8 December 2014   by news.thomasnet.com    
MRI scans could be a 'game-changer' in prostate cancer testing
Tuesday, 5 August 2014   by www.abc.net.au    
7-Tesla MRI scanner allows even more accurate diagnosis of breast cancer
Thursday, 6 March 2014   by www.healthcanal.com    
Searchterm 'Open MRI' was also found in the following services: 
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Radiology  (2) Open this link in a new windowUltrasound  (1) Open this link in a new window
MSK-Extreme™InfoSheet: - Devices -
Intro, 
Types of Magnets, 
Overview, 
etc.MRI Resource Directory:
 - Devices -
 
From ONI Medical Systems, Inc.;
www.onicorp.com/ 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
SURFACE COILS 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.
SPECTROSCOPY No
SYNCHRONIZATION No
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
TR 10-10,000ms; 1ms steps
TE 5-150ms; 1 ms steps
SINGLE/MULTI SLICE 2D less than 200 msec/image
FOV 4cm-16cm
SLICE THICKNESS 2D: 2mm-10mm/.1mm incr.
DISPLAY MATRIX Up to 1,000x1,000
MEASURING MATRIX X/Y: 64-512; 2 pixel steps
PIXEL INTENSITY 4,096 grey lvls; 256 lvls in 3D
SPATIAL RESOLUTION 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
FIELD STRENGTH 1.0 T
STRENGTH 15 mT/m
5-GAUSS FRINGE FIELD 1.25m radial x 1.8m axial
SHIMMING Passive
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Further Reading:
  Basics:
MSK Extreme Brochure(.pdf)
   by www.nova-logic.ch    
MSK Extreme Specifications(.pdf)
   by www.nova-logic.ch    
MRI Resources 
Safety Training - IR - Musculoskeletal and Joint MRI - Portals - Shielding - Open Directory Project
 
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Acoustic Noise Reduction (Silent, Quiet, etc.) :
cannot get better 
is in its first steps 
is done by earplugs, headphones 
must get better 
is bad, I miss something 
is unnecessary 

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