Xeroradiography. Its value in gas myelography.

Electrostatic imaging with its capacity for enhancing borders improves radiographic demonstration of gas-soft tissue interfaces in gas myelography. Its wide recording latitude also provides satisfactory delineation through areas of widely varying photon absorption. Xeroradiogrphy surmounts the paradox wherein contrast and latitude are inversely related so that the combination of both high contrast and broad latitude are simultaneously used to advantage. The xerogram, especially in the thoracic region, may be sufficiently diagnostic so that tomography is not necessary. Where additional information is required, tomographic xeroradiography can provide diagnostic information not perceptible on film tomograms.