Method for reproducing an electronically stored medical image on a hardcopy material

US5712081A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Hieronymus Andriessen · Beerse, BE
• Freddy Henderickx · Olen, BE

Key dates

• Filing date: Mar 6, 1997
• Grant date: Jan 27, 1998
• Expiry date: Mar 6, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C2200/52
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method of reproducing an electronically stored medical image on a hardcopy material is disclosed, said material comprising a support and on only one side thereof a silver halide emulsion layer and a hydrophilic colloid layer, wherein said emulsion layer comprises red sensitized homogeneous cubic silver chloride, silver chloroiodide, silver chlorobromide or silver chlorobromoiodide crystals having not less than 70 mole % of chloride ions and preferably not less than 90 mole %; not more than 1 mole % of iodide ions and an average crystal size of from 0.12 to 0.30 .mu.m and more preferred from 0.15 to 0.25 .mu.m; wherein said crystals are coated in an amount, expressed as an equivalent amount of silver nitrate of from 2 to 6 g per sq.m., and wherein said material has a hardening degree corresponding with a water absorption of up to 3 g per gram of gelatin at an emulsion side, the said water absorption being measured by the method disclosed herein; said method of image formation being characterized by the steps of PA1 image-wise exposure of said material with an electronically adressed red or infrared laser followed by PA1 development processing in a developer free from hardening age…