X-ray computed tomography apparatus

Abstract

According to one embodiment, an X-ray computed tomography apparatus includes a rotating frame rotatably supporting an X-ray tube and an X-ray detector detecting X-rays transmitted through an object on a top, a plan storage unit storing a plan for sequentially executing scans to acquire projection data sets with rotation of the rotating frame, a scan information storage unit storing scan information including projection data sets, and a scan control unit determining positions of the rotating frame and the top based on the plan and the scan information when the plan is interrupted and resuming at least one of the plurality of scans in the plan.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the priority benefit of prior Japanese Patent Application No. 2012-078376 filed on March 29, 2012, the entire contents of which are hereby incorporated by reference into this application. technical field [0003] Embodiments described here relate generally to X-ray computed tomography apparatus. Background technique [0004] An X-ray computed tomography (hereinafter, referred to as CT) apparatus includes: an X-ray tube that generates X-rays; an X-ray detector that detects X-rays; The X-ray tube and the X-ray detector rotate while irradiating the subject placed on the top plate with X-rays for scanning, and reconstruct projection data collected by the scanning to generate image data. [0005] However, the X-ray CT apparatus has scans that continuously collect projection data by irradiating X-rays to the subject while moving the top plate, and scans that collect projection data by...

AI Technical Summary

Problems solved by technology

[0006] However, when a system shutdown occurs in the X-ray CT apparatus due to a power outage or the like during a scan based on a dedicated plan, it is necessary to restart from the first scan, and thus there is a problem that the exposure dose of the subject increases.

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