Material for diagnosis by nuclear magnetic resonance imaging

Details Material for diagnosis by nuclear magnetic resonance imaging Material for diagnosis by nuclear magnetic resonance imaging

1987-09-11

1988-10-04

Anderson, Philip

Surgery

Truss

Pad

156242, 264 28, 264101, 264154, 2642711, 26433115, 324308, 324309, 428419, 524557, 525 56, A61B 505, G01R 3320, C08L 2904, B29C 3902

Patent

active

047749571

ABSTRACT:
A material for diagnosis by nuclear magnetic resonance imaging is provided. The material comprises a hydrogel having a high water content. The hydrogel is prepared by the steps of casting an aqueous polyvinyl alcohol solution into a mold, cooling the case aqueous solution to obtain a cooled frozen mass and thawing the cooled frozen mass. The cooling and thawing steps may be repeated up to eight cycles. The hydrogel is also prepared by subjecting the cooled frozen mass to a partial dehydration step in vacuum.

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