To acccomplish a purpose of a medical examination using an X-ray diagnostic apparatus and also to reduce radiation exposure of a patient.
The X-ray diagnostic apparatus 10 for performing radioscopy or radiography of a patient P comprises an allowed exposure dose setting section 63 for setting an allowed exposure dose appropriate for the patient P, a comparative section 64 for converting an X-ray dose measured by a radiometer 22 to an actual exposure dose a of the patient P and for comparing the actual exposure dose a of the patient a with an allowed exposure dose b appropriate for the patient P read from the allowed exposure dose setting section 63, and a high-voltage control circuit 55. When the actual exposure dose a and the allowed exposure dose b have a given relationship according to the comparison at the comparative section 64, the high-voltage control circuit controls an X-ray condition on the basis of the exposure dose of the patient P in a exposure dose control mode.
KAKIMURA MASAHITO
KOBAYASHI HIROMASA
UEHARA HISAYUKI
FUJITA NAOYA
KANEKO MAKOTO
TOSHIBA MEDICAL SYS CORP
Shunguchi Sekiguchi
Akio Saruwatari
Junichi Furukawa
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