ROSSLYN, Va.—Today the National Electrical Manufacturers Association (NEMA) revised test methods for measuring the absolute spatial variation of geometric accuracy within magnetic resonance images. NEMA MS 12-2016 Quantification and Mapping of Geometric Distortion for Special Applications presents the absolute geometric accuracy as a map, graph, or table throughout the imaging region rather than as simple figures of merit, such as average or worst-case error.
The revisions take into account increased variety of test materials, covering medical imaging, radiology, and conformity assessment industries.
"This standard is becoming increasingly useful with magnetic resonance (MR)-guided oncology applications to ensure the required high geometric accuracy of treatment," said Enzo Barberi, product manager, MR-guided quality assurance at Modus Medical Devices, and MR section member.
NEMA MS 12-2016 is
available in hard copy for $72 or as an electronic download for no cost on the
Electrical Manufacturers Association (NEMA) represents nearly 350 electrical
equipment and medical imaging manufacturers that make safe, reliable, and efficient products
and systems. Our combined industries
account for 360,000 American jobs in more than 7,000 facilities covering every
state. Our industry produces $106 billion shipments of electrical equipment and
medical imaging technologies per year with $36 billion exports.