X-ray diagnostic apparatus and correction method

Abstract

According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, an X-ray detector, and processing circuitry. The X-ray tube radiates X-rays toward a subject into which a contrast medium is injected. The an X-ray detector detects the X-rays transmitted through the subject. The processing circuitry generates an X-ray image based on an output from the X-ray detector. The processing circuitry acquires indexes related to a brightness of the X-ray image. The processing circuitry corrects, based on a reference index prior to injection of the contrast medium and a latest index after start of the injection of the contrast medium, a brightness value of the X-ray image relative to the latest index, the reference index and the latest index being included in the acquired indexes.

Dependencies are inferred from the claim text.