| 摘要 |
Without injecting a contrast medium, blood pumped out from the heart can preferably be depicted in a non-invasive fashion, resulting in a greatly shortened scanning time for data acquisition. An MRI system temporal phase detecting means acquiring an ECG signal of an object, and imaging scanning means performing a three-dimensional scanning pulse sequence every slice encoding in synchronism with an ECG signal. The pulse sequence includes an RF excitation pulse of which repetition time is set to be shorter. In addition, the pulse sequence includes a slice-directional gradient for performing data acquisition based on the slice encoding in an approximately parallel direction to a running direction of a blood flow. Furthermore, the pulse sequence includes a phase-encoding directional gradient for applying a phase encode in a direction approximately coinciding with a running direction of the blood flow.
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