Diagnostic imaging apparatus, magnetic resonance imaging apparatus, and X-ray CT apparatus

Abstract

The invention provides a diagnostic imaging apparatus, a magnetic resonance imaging apparatus and an X-ray CT apparatus. The diagnostic imaging apparatus includes a ventricular volume-variation measuring unit that measures sequential variations in a size of a ventricle within at least one heart beat, from images of a heart scanned in each of a plurality of time phases; a scanning-condition setting unit that specifies a time phase of little cardiac motion based on variations in the size of the ventricle measured by the ventricular volume-variation measuring unit, and sets scanning conditions so as to collect data in the specified time phase; and an imaging unit that collects data based on the scanning conditions set by the scanning-condition setting unit, and reconstructs an image from the collected data.

Description

[0001] This application enjoys the priority rights of Japanese Patent Application No. 2007-317613 filed on December 7, 2007, and Japanese Patent Application No. 2008-272448 filed on October 22, 2008, and is cited in this application the entire content of the application. technical field [0002] The present invention relates to an image diagnostic apparatus, a magnetic resonance imaging (imaging) apparatus, and an X-ray CT (Computed Tomography, computed tomography) that set imaging conditions so as to collect data in synchronization with an object's electrocardiogram waveform and perform imaging. ) device, and particularly relates to a technology for automatically determining a timing (timing) with little cardiac motion without adding special imaging and judgment based on the operator. Background technique [0003] Conventionally, in imaging methods requiring high spatial resolution, such as cardiac imaging using a magnetic resonance imaging device, especially coronary arter...

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Problems solved by technology

[0005] However, in the above-mentioned conventional method, it is necessary to perform repositioning independently of a series of examinations, add animation imaging to draw a cross-section of the coronary artery, and set the timing of imaging by the operator visually.

Therefore, in the conventional method, the inspection time is prolonged, the burden on the operator and the patient increases, and there is a problem that the image quality becomes unstable due to the deviation of the imaging timing by the operator.

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