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MRI
1. New Trends in
Magnetic Resonance Imaging
Divya Nepal
SOURCE: https://www.itnonline.com/article/recent-advances-mri-technology
2. MAGNETIC
RESONANCE
IMAGING
A technique that uses magnetism, radio waves and a computer to produce images
of body structures
Based on the principles of nuclear magnetic resonance
First MRI done in 1997, took 5 hours to produce an image
The most recent big advances in magnetic resonance imaging (MRI) technology
have been on the software side, enabling faster contrast scans, greatly simplified
cardiac imaging workflows, and allowing MR scans of the lungs.
This technique gives users the flexibility to manipulate MR images retrospectively,
leading to significant time savings, fewer rescans and therefore cost savings, which
combined can assist the clinician in making a more decisive diagnosis.
3. Lung MRI Now Possible
Lung MRI has been problematic since the lungs are filled with air
and there is a low density of the hydrogen atoms required to
create MR images. For this reason, computed tomography (CT)
has traditionally been used for lung imaging.
Toshiba introduced its Ultrashort Echo Time (UTE) sequence for
dedicated pulmonary MRI.
UTE allows clinicians to view tissue with very short relaxation
times and high susceptibility regions where signals generally
disappear too quickly for accurate MR imaging.
4. GE Healthcare has come up with Cardiac
Examination MRI
Time reduction from 1 hr to less than 10 min
Requires resolution of just the chest
Data processing through Cloud Technology- real
time visualization and processing of data
Data availability
Free breathing for patients instead of multiple
breath holds
Cardiac Examination
5. Siemens MRI applications:
designed to dramatically reduce the time required for MRI examinations of the brain
GoBrain – offers clinically validated brain exams with multiple
orientations and all relevant contrasts
scan time for 5 mins to get a comprehensive overview
Reduces the need for sedation and rescans to reduce cost per
scan
Simultaneous multi-slices are possible now instead of
sequential snap shots taken earlier
Larger room to reduce claustrophobia -Beneficial for pediatric
and geriatric patients
6. This is just for basic idea, for details on new trends in MRI, visit the source given in first page.