T₁ mapping performance and measurement repeatability: results from the multi-national T₁ mapping standardization phantom program (T1MES).

ABSTRACT:

Background

The T₁ Mapping and Extracellular volume (ECV) Standardization (T1MES) program explored T₁ mapping quality assurance using a purpose-developed phantom with Food and Drug Administration (FDA) and Conformité Européenne (CE) regulatory clearance. We report T₁ measurement repeatability across centers describing sequence, magnet, and vendor performance.

Methods

Phantoms batch-manufactured in August 2015 underwent 2 years of structural imaging, B₀ and B₁, and "reference" slow T₁ testing. Temperature dependency was evaluated by the United States National Institute of Standards and Technology and by the German Physikalisch-Technische Bundesanstalt. Center-specific T₁ mapping repeatability (maximum

SUBMITTER: Captur G 

PROVIDER: S-EPMC7204222 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature