Interferometric laser holography for determination of the localization and extent of bladder tumor.

In male giant rabbits (n = 10) with and without bladder carcinomas, holographic interferometric investigations with a double impulse rubin laser were made for testing the sensitivity of this method in detection of elasticity changes of the bladder wall caused by tumors. It could be shown that the holographic interferometry enables a distinction to be made between healthy and tumorous regions of the bladder wall by the various interference patterns.