stsintigraf,skener, instrument for
the automatic registration of the distribution of intensity in some
organ of the emission of radioactive preparation after its
introduction into the organism from diagnostich. by purpose. Is
distinguished universal G.- T. for all it is specific
Gamma-topografii; G.- T. for studying section the sections of
body with the field of scanning 40X40 cm; specialized G.- T.
with 2 detectors, complex program of scanning (arc with the variable
length) for diagnostics of the tumors of the brain. G.- T.
consists of the detector (counter) of gamma-radiation, moved above the
patient along lines or arcs of the electronic device, which converts
the signals of counter into the suitable for the registration form OF
THE V dependence on the construction of instrument registration can be
carried out in the form: A) simple dash mark on the paper
through the carbon paper or the typewritten tape; 6) photo
record with the aid of the luminous source to the film or to the x-ray
film with the undeveloped X-ray photograph of the studied region of
body (combined roentgen- and Gamma-topogrammy); c) to the
magnetic film with subsequent information processing; g) by
many-colored dash or light marks. Obtained data (skenogrammy)
make it possible to judge form, position,sizes and
function of organ. See also radioisotope diagnostics.
