METHOD OF REGISTERING X-RAY IMAGE OF OBJECT IN VARIOUS RANGES OF X-RAY IRRADIATION SPECTRUM

摘要

FIELD: medicine.;SUBSTANCE: invention relates to X-ray equipment, namely to methods of digital registration of X-ray images and can be used for creation of X-ray apparatuses which make it possible to unambiguously identify on X-ray image presence of tumour, calcinated deposits, etc. Method of registration of mineral composition of object's tissues on X-ray image simultaneously in different ranges of X-ray irradiation spectrum includes selective registration of X-ray image, which passed through object, simultaneously in two and more different regions of X-ray spectrum with further conversion of X-ray irradiation that passed through into digital image. Converted X-ray image is obtained with contrast modulation and by modulation depth mineral composition of object's tissues is restored. In front of X-ray irradiation converter placed is mask in form of grid, consisting of separate sections with different X-ray density, step of which is selected in such way that width of grid strip is larger than size of pixels of image in receiver plane, and density of examines object is homogeneous on grid period.;EFFECT: application of invention allows to increase self-descriptiveness and diagnostic possibilities of X-ray image.;12 cl, 4 dwg