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New polyvinyl alcohol gel material for MRI phantoms
Author(s) -
Mano Isamu,
Goshima Hitoshi,
Nambu Masao,
Iio Masahiro
Publication year - 1986
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910030612
Subject(s) - polyvinyl alcohol , calibration , biomedical engineering , materials science , polyvinyls , composite material , physics , polymer , medicine , quantum mechanics
Nambu PVA gel which is produced by repeated freezing and thawing of PVA solution has overcome almost all of the problems which present substances have: (1) It is close to human soft tissue in MRI parameters. (2) MRI parameters ( 1 H density, T 1 , T 2 ) are adjustable to some extent. (3) It has appropriate physical characteristics. The important problem with PVA gel is long‐term stability. It is assumed that this problem can be solved by its periodic calibration and replacement. © 1986 Academic Press, Inc.