An MRI phantom material for quantitative relaxometry

K. A. Kraft, P. P. Fatouros, G. D. Clarke, P. R.S. Kishore

Producción científica: Articlerevisión exhaustiva

82 Citas (Scopus)

Resumen

Most phantom media in current use exhibit T1 relaxation times that are significantly dependent on both temperature and operating frequency. This can introduce undesirable variability into relaxation measurements due to temperature fluctuations, and complicates direct comparison of imagers operating at different magnetic field strengths. Our investigations of a nickel‐doped agarose gel system have demonstrated near independence of the proton relaxation rates to a wide range of temperatures and frequencies. We therefore propose the adoption of Ni2+ as a relaxation modifier for phantom materials used as relaxometry standards. © Academic Press, Inc.

Idioma originalEnglish (US)
Páginas (desde-hasta)555-562
Número de páginas8
PublicaciónMagnetic Resonance in Medicine
Volumen5
N.º6
DOI
EstadoPublished - dic 1987

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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