We propose a 3-D-printed breast phantom for use in preclinical experimental microwave imaging studies. The phantom is derived from an MRI of a human subject; thus, it is anthropomorphic, and its interior is very similar to an actual distribution of fibroglandular tissues. Adipose tissue in the breast is represented by the solid plastic (printed) regions of the phantom, while fibro glandular tissue is represented by liquid-filled voids in the plastic. The liquid is chosen to provide a biologically relevant dielectric contrast with the printed plastic. Such a phantom enables validation of microwave imaging techniques. We describe the procedure for generating the 3-D-printed breast phantom and present the measured dielectric properties of the 3-D-printed plastic over the frequency range 0.5-3.5 GHz. We also provide an example of a suitable liquid for filling the fibroglandular voids in the plastic.

中文翻译：

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用于微波乳房成像验证的 MRI 衍生 3D 打印乳房模型

我们提出了一种用于临床前实验微波成像研究的 3D 打印乳房模型。体模源自人类受试者的 MRI；因此，它是拟人化的，其内部与纤维腺组织的实际分布非常相似。乳房中的脂肪组织由体模的固体塑料（印刷）区域表示，而纤维腺体组织由塑料中充满液体的空隙表示。选择液体以提供与印刷塑料的生物相关的介电对比度。这种体模可以验证微波成像技术。我们描述了生成 3-D 打印乳房幻影的过程，并在 0.5-3.5 GHz 的频率范围内展示了 3-D 打印塑料的介电特性。