数字乳腺断层摄影应用现状及展望

乳腺X线摄影是早期检出乳腺癌最有效手段。但在X线片上由于腺体组织的重叠会影响到病变的检出与诊断。数字乳腺断层摄影（DBT）是一项新的数字乳腺摄影方法,它是由一系列从不同角度拍摄所获得的低剂量X线图像经重建后合成的断层图像。这项技术在获得的三维图像基础上,克服了传统乳腺摄影需要压迫乳腺所带来的不适,以及重叠组织所隐藏的癌灶。DBT可以降低复检率,增加活检病人的选择性,提高癌灶的检出率,有效降低由于组织重叠而造成的误诊,减少患者因＂假阳性＂病变所带来的不必要的焦虑。尽管DBT也存在一定的局限性,但研究表明,这项技术拥有很大的潜能,其价值也会得到更广泛的认同。

The Current Status and Prospects of Digital Breast Tomosynthesis

Mammography is an effective imaging tool for detecting breast cancer at an early stage. But the overlap of tissues depicted on mammograms may create significant obstacles to the detection and diagnosis of abnormalities. Digital Breast Tomosynthesis(DBT) is an new digital mammography method in which a series of low-dose X-ray images is acquired over a range of angles relative to an imaged object. DBT is based on the acquisition of three-dimensional digital image data,could overcome critical issues:discomfort...