Magnetic Resonance - Technology Information Portal Welcome to MRI Technology
Info
  Sheets

Out-
      side
 



 
 'High Field MRI' 
SEARCH FOR    
 
  2 3 5 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Result : Searchterm 'High Field MRI' found in 1 term [] and 16 definitions [], (+ 18 Boolean[] results
previous     11 - 15 (of 35)     next
Result Pages : [1]  [2 3 4]  [5 6 7]
Searchterm 'High Field MRI' was also found in the following services: 
spacer
News  (36)  Resources  (10)  Forum  (1)  
 
Monoclonal AntibodiesInfoSheet: - Contrast Agents - 
Intro, Overview, 
Characteristics, 
Types of, 
etc.
 
(McAb) Monoclonal antibodies are used for tumor detection and localization in nuclear medicine. In MRI, monoclonal antibodies labeled with paramagnetic or superparamagnetic particles are being studied for targeting tumors, for example contrast agent containing gadolinium attached to a targeting antibody. The antibody would bind to a specific target (e.g., a metastatic melanoma cell) while the gadolinium would increase the MRI signal. Further developments are MRI contrast agents that specifically target glucose receptors on tumor cells; coupled with the high spatial resolution of high field MRI devices, these agents have potentials to detect small tumor foci.
The monoclonal antibody manufacturers produce a wide variety of ligands, which can be directed against a multiplicity of pathologic molecular targets. MRI enhanced with targeted contrast agents can be used for molecular imaging.
spacer
 
Further Reading:
  News & More:
Measuring mAbs with magnetic resonance can help regulatory testing
Thursday, 23 April 2015   by www.biopharma-reporter.com    
Repligen - Eyeing Sustainable Profitability
Monday, 31 October 2011   by www.rttnews.com    
MRI Resources 
Open Directory Project - Corporations - Calculation - Case Studies - Patient Information - General
 
Nerve StimulatorForum -
related threadsMRI Resource Directory:
 - Safety -
 
An implantable medical device that stimulates nerves.
mri safety guidance
MRI Safety Guidance
Depending on the used MRI field strength not necessarily a contraindication, but the examination may damage or impair it. In mid to high field MRI machines the reduction of the SAR value during the scan is necessary to avoid the risk of heating.
spacer

• View the DATABASE results for 'Nerve Stimulator' (2).Open this link in a new window

 
Further Reading:
  News & More:
FDA announces recall of Abbott neurostimulation devices after MRI-related issues lead to 73 injuries
Thursday, 14 September 2023   by healthimaging.com    
Off-Label Magnetic Resonance Imaging (MRI) in Patients with Persistent Pain with Spinal Cord Stimulators: A Case Series
Friday, 19 August 2022   by www.dovepress.com    
Stimwave’s MRI-safe, injectable neurostimulator gets FDA nod
Tuesday, 9 August 2022   by www.fiercebiotech.com    
FDA approves expanded, full-body MRI compatibility with Inspire therapy
Thursday, 14 July 2022   by www.massdevice.com    
Medtronic DBS systems cleared for full-body MRI in Europe
Wednesday, 22 April 2015   by seekingalpha.com    
Stimwave Announces First Full Body 3-Tesla MRI Conditional Neuromodulation Medical Implantable Device (AMID) Without Any Limitations for Body Part Imaging
Tuesday, 10 March 2015   by www.businesswire.com    
MRI Resources 
Service and Support - Equipment - PACS - Societies - Shoulder MRI - Safety Products
 
Open MRIForum -
related threads
 
Open MRI scanners have been developed for people who are anxious or obese or for examination of small parts of the body, such as the extremities (knee, shoulder). In addition, some systems offer imaging in different positions and sequences of movements. The basic technology of an open MRI machine is similar to that of a traditional MRI device. The major difference for the patient is that instead of lying in a narrow tunnel, the imaging table has more space around the body so that the magnet does not completely surround the person being tested.
Types of constructions:
•
Semi open high field MRI scanners provide an ultra short bore (tunnel) and widely flared ends. In this type of MRI systems, patients lie with the head in the space outside the bore, if for example the hips are examined.
•
Open low field MRI machines have often a wide open design, e.g. an open C-arm scanner is shaped like two large discs separated by a large pillar. Patients have an open sided feeling and more space around them allows a wider range of positions.
•
Advanced open MRI scanners combine the advantages of both, the high field strength, newest gradient technology and wide open design. Even scans of patients in upright, weight-bearing positions are possible (e.g. Uprightâ„¢ MRI formerly Stand-Up MRI).

Difficulties with a traditional MRI scan include claustrophobia and patient size or, for health related reasons, patients who are not able to receive this type of diagnostic test. The MRI unit is a limited space, and some patients may be too large to fit in a narrow tunnel. In addition, weight limits can restrict the use of some scanners. The open MRI magnet has become the best option for those patients.
All of the highest resolution MRI scanners are tunnels and tend to accentuate the claustrophobic reaction. While patients may find the open MRI scanners easier to tolerate, some machines use a lower field magnet and generates lower image quality or have longer scan time. The better performance of an advanced open MRI scanner allows good image quality caused by the higher signal to noise ratio with maximum patient comfort.

See also Claustrophobia, MRI scan and Knee MRI.
spacer

• View the DATABASE results for 'Open MRI' (37).Open this link in a new window


• View the NEWS results for 'Open MRI' (16).Open this link in a new window.
 
Further Reading:
  Basics:
Open MRI scanners reduce anxiety in patients
Thursday, 8 September 2011   by www.mtbeurope.info    
  News & More:
Safety of Bedside Portable Low-Field Brain MRI in ECMO Patients Supported on Intra-Aortic Balloon Pump
Friday, 18 November 2022   by www.mdpi.com    
Esaote Obtains EC MDR Certification for the New Magnifico Open Total-body Magnetic Resonance System
Sunday, 5 December 2021   by www.itnonline.com    
World's First Portable MRI Cleared by FDA
Monday, 17 February 2020   by www.medgadget.com    
How Much Does an Open MRI Cost?
Tuesday, 1 January 2019   by health.costhelper.com    
Radiographer's Lego Open MRI Product Idea Reaches New Milestone
Monday, 11 November 2019   by www.itnonline.com    
Searchterm 'High Field MRI' was also found in the following services: 
spacer
News  (36)  Resources  (10)  Forum  (1)  
 
Prosthetic Heart ValvesMRI Resource Directory:
 - Safety -
 
The interactions between the most tested heart valve prostheses and the magnetic field of MRI devices are of no significance. However, there are many different types of heart valve prostheses and in the particular case their MRI safety should be checked.
mri safety guidance
MRI Safety Guidance
Prosthetic heart valves, depending on the type and the material, are not necessarily considered to be dangerous in fields up to 3T. Patients should not undergo high field MRI examinations if valve dehiscence is clinically suspected.
spacer

• View the DATABASE results for 'Prosthetic Heart Valves' (2).Open this link in a new window

 
Further Reading:
  Basics:
Prosthetic Heart Valves: Evaluation of Magnetic Field Interactions, Heating, and Artifacts at 1.5 T
2000   by www.imrser.org    
  News & More:
Guidelines for the Management of Patients with Heart Valve Prostheses and Annuloplasty Rings Referred for MRI Procedures
Tuesday, 1 January 2019   by www.ismrm.org    
Codman Neuro develops new MRI-resistant programmable valve for treatment of hydrocephalus
Tuesday, 22 September 2015   by www.news-medical.net    
MRI Resources 
Education pool - Jobs - MR Guided Interventions - Pathology - Education - RIS
 
Quench
 
Quenching is the cryogen boil off (liquid helium) which is used to cool the superconducting magnet coils of high field MRI systems. This results in a loss of superconductivity in the magnet, in a rapid increase in the resistivity of the magnet, which generates heat that results in further evaporation of the cryogen.
mri safety guidance
MRI Safety Guidance
A quench can cause total magnet failure and should be avoided.
spacer

• View the DATABASE results for 'Quench' (5).Open this link in a new window

 
Further Reading:
  Basics:
Cryogenic Liquids and their Hazards
   by www.ccohs.ca    
MRI Resources 
MR Guided Interventions - Distributors - Stent - Portals - Sequences - PACS
 
previous      11 - 15 (of 35)     next
Result Pages : [1]  [2 3 4]  [5 6 7]
 Random Page
 
Share This Page
FacebookTwitterLinkedIn

MR-TIP    
Community   
User
Pass
Forgot your UserID/Password ?    



MRI is trending to low field magnets :
reduced costs will lead to this change 
AI will close the gap to high field 
only in remote areas 
is only temporary 
never 

Look
      Ups





MR-TIP.com uses cookies! By browsing MR-TIP.com, you agree to our use of cookies.

Magnetic Resonance - Technology Information Portal
Member of SoftWays' Medical Imaging Group - MR-TIP • Radiology-TIP • Medical-Ultrasound-Imaging • 
Copyright © 2003 - 2024 SoftWays. All rights reserved. [ 28 March 2024]
Terms of Use | Privacy Policy | Advertising
 [last update: 2024-02-26 03:41:00]