Patent Document ID: 20160035112
Application ID: 14811820
Patent Status: 0

Claim One:
1. A method for reconstructing a cardiac image, comprising: collecting projection data and recording electrocardiogram data when computed tomographic scanning is performed on a patient; selecting, based on the electrocardiogram data, first projection data related to each cardiac pixel with a same phase from the projection data, and then obtaining a cardiac image by reconstructing an image of the related cardiac pixel based on the first projection data; determining a reconstruction phase of each reconstruction pixel in a first reconstruction region based on the electrocardiogram data, wherein the first reconstruction region is an image region selected along the patient's head-to-foot direction from the cardiac image; and selecting, based on the reconstruction phase of each reconstruction pixel, second projection data related to the reconstruction pixel with the reconstruction phase from the projection data, and then reconstructing an image of the reconstruction pixel based on the second projection data.