scholarly journals Magnetic Resonance Imaging of Rat Head with a High-Strength(4.7T) Magnetic Field.

1997 ◽  
Vol 59 (4) ◽  
pp. 303-306 ◽  
Author(s):  
Kazutaka YAMADA ◽  
Chun-Jun CHEN ◽  
Hiroshi SATOH ◽  
Toyohiko HIROTA ◽  
Kazuharu AOYAGI ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
High Strength ◽  
Resonance Imaging

scholarly journals The Zurich Checklist for Safety in the Intraoperative Magnetic Resonance Imaging Suite: Technical Note

2018 ◽  
Vol 16 (6) ◽  
pp. 756-765 ◽  
Author(s):  
Martin N Stienen ◽  
Jorn Fierstra ◽  
Athina Pangalu ◽  
Luca Regli ◽  
Oliver Bozinov
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
High Strength ◽  
Technical Note ◽  
Patient Transfer ◽  
Resonance Imaging ◽  
Intraoperative Magnetic Resonance Imaging ◽  
Surgical Checklist ◽  
The Magnetic Field

Abstract BACKGROUND Recently, the use of intraoperative magnetic resonance imaging (ioMRI) has evolved in neurosurgery. Challenges related to ioMRI-augmented procedures are significant, since the magnetic field creates a potentially hazardous environment. Strict safety guidelines in the operating room (OR) are necessary. Checklists can minimize errors while increasing efficiency and improving workflow. OBJECTIVE To describe the Zurich checklists for safety in the ioMRI environment. METHODS We summarize the checklist protocol and the experience gained from over 300 surgical procedures performed over a 4-yr period using this new system for transcranial or transsphenoidal surgery in a 2-room high-field 3 Tesla ioMRI suite. RESULTS Particularities of the 2-room setting used at our institution can be summarized as (1) patient transfer from a sterile to a nonsterile environment and (2) patient transfer from a zone without to a zone with a high-strength magnetic field. Steps on the checklist have been introduced for reasons of efficient workflow, safety pertaining to the strength of the magnetic field, or sterility concerns. Each step in the checklist corresponds to a specific phase and particular actions taken during the workflow in the ioMRI suite. Most steps are relevant to any 2-room ioMRI-OR suite. CONCLUSION The use of an ioMRI-checklist promotes a zero-tolerance attitude for errors, can lower complications, and can help create an environment that is both efficient and safe for the patient and the OR personnel. We highly recommend the use of a surgical checklist when applying ioMRI.

Anaesthetic Concerns for Patients Undergoing Neurosurgical Procedures Utilising Intra-operative Magnetic Resonance Imaging

2013 ◽  
Vol 8 (2) ◽  
pp. 164 ◽  
Author(s):  
Craig D McClain ◽  
Wilson T Chimbira ◽  
◽  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
High Strength ◽  
Neurosurgical Procedures ◽  
Resonance Imaging ◽  
Good Communication ◽  
Mri Environment ◽  
American Society ◽  
Procedural Planning

Intra-operative magnetic resonance imaging (ioMRI) is an evolving technology that offers precise intra-cranial lesion localisation and intra-operative navigation by combining the high-resolution imaging capabilities of MRI with an operative suite. Developed in the 1990s, ioMRI presents caregivers with a variety of unique challenges revolving around performing surgical procedures in an operating theatre with a high-strength magnetic field. Different types of ioMRI systems exist, differentiated by the relative mobility of the patient and magnet. As with any MRI environment, safety is of paramount concern. Published safety guidelines exist from both the American College of Radiology and the American Society of Anesthesiologists. A variety of checklists can be used to enhance the safety of the ioMRI suite. There are a variety of anaesthetic considerations when caring for patients in this environment including concerns related to the anaesthesia equipment, the patient and the general MRI environment. A multidisciplinary approach can encourage safety and efficiency in this unique operating room. The purpose of this review is to discuss the variety of topics that anaesthesiologists need to consider using this technology, including the indications, specific equipment considerations and unique safety aspects of caring for patients in the ioMRI suite. While performing surgery in a high-strength magnetic field environment carries its own special risks, each type of ioMRI suite presents its own unique challenges to patient safety. Although the challenges are significant, safe care and optimal outcomes are certainly possible with appropriate understanding of the factors unique to the ioMRI environment, good communication, a collaborative approach and proper procedural planning.

Anesthetic Concerns for Patients Undergoing Neurosurgical Procedures Utilizing Intra-operative Magnetic Resonance Imaging

US Neurology ◽  
2014 ◽  
Vol 10 (01) ◽  
pp. 61
Author(s):  
Craig D McClain ◽  
Wilson T Chimbira ◽  
◽  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
High Strength ◽  
Neurosurgical Procedures ◽  
Resonance Imaging ◽  
Good Communication ◽  
Mri Environment ◽  
American Society ◽  
Procedural Planning

Intra-operative magnetic resonance imaging (ioMRI) is an evolving technology that offers precise intra-cranial lesion localization and intra-operative navigation by combining the high-resolution imaging capabilities of MRI with an operative suite. Developed in the 1990s, ioMRI presents caregivers with a variety of unique challenges revolving around performing surgical procedures in an operating theatre with a high-strength magnetic field. Different types of ioMRI systems exist, differentiated by the relative mobility of the patient and magnet. As with any MRI environment, safety is of paramount concern. Published safety guidelines exist from both the American College of Radiology and the American Society of Anesthesiologists. A variety of checklists can be used to enhance the safety of the ioMRI suite. There are a variety of anesthetic considerations when caring for patients in this environment including concerns related to the anesthesia equipment, the patient, and the general MRI environment. A multidisciplinary approach can encourage safety and efficiency in this unique operating room. The purpose of this review is to discuss the variety of topics that anesthesiologists need to consider using this technology, including the indications, specific equipment considerations, and unique safety aspects of caring for patients in the ioMRI suite. While performing surgery in a high-strength magnetic field environment carries its own special risks, each type of ioMRI suite presents its own unique challenges to patient safety. Although the challenges are significant, safe care and optimal outcomes are certainly possible with appropriate understanding of the factors unique to the ioMRI environment, good communication, a collaborative approach, and proper procedural planning.

Magnetic resonance imaging: effects of magnetic field strength.

Radiology ◽  
1984 ◽  
Vol 151 (1) ◽  
pp. 127-133 ◽  
Author(s):  
L E Crooks ◽  
M Arakawa ◽  
J Hoenninger ◽  
B McCarten ◽  
J Watts ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Resonance Imaging

MRI Susceptibility Artefacts Related to Scaphoid Screws: the Effect of Screw Type, Screw Orientation and Imaging Parameters

2002 ◽  
Vol 27 (2) ◽  
pp. 165-170 ◽  
Author(s):  
M. GANAPATHI ◽  
G. JOSEPH ◽  
R. SAVAGE ◽  
A. R. JONES ◽  
B. TIMMS ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Titanium Alloy ◽  
Magnetic Resonance ◽  
Main Magnetic Field ◽  
Resonance Imaging ◽  
Metal Implants ◽  
Imaging Parameters ◽  
Susceptibility Artefact

Metal implants produce susceptibility artefacts in magnetic resonance imaging. We have explored the effects of scaphoid screw characteristics and orientation on MR susceptibility artefact. Titanium alloy, smallness and longitudinal alignment with the z-axis of the main magnetic field reduce the size of the susceptibility artefact.

Triaxial Fiber Optic Magnetic Field Sensor for Magnetic Resonance Imaging

2017 ◽  
Vol 35 (18) ◽  
pp. 3924-3933 ◽  
Author(s):  
Massimo L. Filograno ◽  
Marco Pisco ◽  
Angelo Catalano ◽  
Ernesto Forte ◽  
Marco Aiello ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
Fiber Optic ◽  
Magnetic Field Sensor ◽  
Resonance Imaging ◽  
Field Sensor

Magnetic resonance imaging without field cycling at less than earth's magnetic field

2015 ◽  
Vol 106 (10) ◽  
pp. 103702 ◽  
Author(s):  
Seong-Joo Lee ◽  
Jeong Hyun Shim ◽  
Kiwoong Kim ◽  
Kwon Kyu Yu ◽  
Seong-min Hwang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Earth’S Magnetic Field ◽  
Earth's Magnetic Field ◽  
Field Cycling

Observation of memory effects associated with degradation of rechargeable lithium-ion cells using ultrafast surface-scan magnetic resonance imaging

2021 ◽  
Vol 9 (37) ◽  
pp. 21078-21084
Author(s):  
Konstantin Romanenko ◽  
Alexej Jerschow
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Life Cycle ◽  
Magnetic Resonance ◽  
Lithium Ion ◽  
Resonance Imaging ◽  
Induced Magnetic Field ◽  
Field Patterns ◽  
Lithium Ion Cells ◽  
Surface Scan

Batteries share their “health problems” and “memories” of hazardous life-cycle events via DC-induced magnetic field patterns revealed by MRI.

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