PROBLEM TO BE SOLVED: To provide an X-ray imaging apparatus and an X-ray imaging method capable of acquiring a satisfactory X-ray image of even a subject who has difficulty in intentionally suspending breathing, by imaging with a proper breathing timing without increase in a burden on the subject.SOLUTION: An X-ray imaging apparatus 100 comprises: an airbag 5 whose internal air pressure is varied by a body movement caused by breathing of a subject K； air pressure detection means 71 which detects the air pressure transmitted from the airbag 5； and arithmetic means 72 which calculates information relating to an indication of irradiation timing of X-ray beam L on the basis of the air pressure detected by the air pressure detection means 71.SELECTED DRAWING: Figure 1【課題】呼吸を意図的に止めることが困難な被検体でも、被検体への負担を増すことなく、適切な呼吸タイミングで撮影でき良好なＸ線画像を取得できるＸ線撮影装置およびＸ線撮影方法を提供する。【解決手段】Ｘ線撮影装置１００は、被検体Ｋの呼吸による体動によって内部の空気圧が変動するエア袋５と、エア袋５から伝達される空気圧を検出する空気圧検出手段７１と、空気圧検出手段７１によって検出される空気圧に基づいてＸ線束Ｌの照射タイミングの指示に関する情報を演算する演算手段７２とを備えている。【選択図】図１
