Computer-implemented method and system for determining fetal ventricular volume by diffusion-weighted magnetic resonance imaging, and related NMR ventricular volume assessment method

The invention relates to a computer-implemented method for determining the volume of a fetal ventricle according to diffusion weighted magnetic resonance imaging (referred to as DWI), comprising the following steps: A. acquiring a DWI image of the fetal ventricle with a preset voxel height (112), where the acquisition is performed with a single b-value selected in the range between 200 and 1000 s/mm2 (111); b. selecting ROIs (122, 123, 124, 125) on each DWI image around the ventricle; c, carrying out automatic clustering (127) on pixels in the ROI so as to obtain a clustered DWI image; and D. calculating the ventricular volume (130) based on the number of pixels in the ROI of each DWI image and a preset voxel height. The method further relates to an NMR evaluation system and an NMR evaluation method using the method of the invention. 本发明涉及一种用于根据扩散加权磁共振成像(称为DWI)来确定胎儿脑室容积的计算机实施的方法，包括执行以下步骤：A.采集胎儿脑室的具有预设体素高度的DWI图像(112)，其中采集是用在200和1000s/mm2之间范围内选择的单个b值进行的(111)；B.在所述脑室周围的每个DWI图像上选择ROI(122，123，124，125)；C.对所述ROI中的像素