A new radio-opaque injection technique for tissue preservation.

This study has investigated the action of two commonly available preservatives, chlorbutol and chlorocresol, on fresh cadaver tissue. If the arterial system of the subject is perfused first with either preservative then the progression of tissue necrosis can be delayed for up to 1 month. The preservative can be combined with the lead oxide-gelatin mixture described by Rees and Taylor without compromising the results of radiographic studies. Both chlorocresol and chlorbutol have the advantage over formalin of retaining the normal colour and texture of the tissues. A regimen is suggested which has all of the advantages of the mixture originally described by Salmon, but is much simpler and cheaper to produce. It has proved successful when used in whole cadavers but the visceral contents must be removed at an early stage.