The present invention relates to a bidirectional optical scanner assisting in mammography. The bidirectional optical scanner that calculates functional images obtained by diffuse optical tomography, used in combination with a mammography machine can reduce the number of mammograms taken and the dose exposure. The bidirectional optical scanner includes a first compression plate, a first optical detection module, a second optical detection module, and a second compression plate. The same test position of the tested breast can be detected twice in different directions by the first and the second optical detection modules of the bidirectional optical scanner. No matter where the tumor is located, the tumor can be detected. Besides structural images provided by the mammography machine, functional tomographic images of the breast are obtained by the bidirectional optical scanner. Thus diagnostic accuracy in the detection of breast cancer is improved.本發明有關於一種用於輔助X光乳房攝影之雙向光學掃描裝置,該雙向光學掃描裝置用於輔助X光乳房攝影,計算功能性擴散光學斷層影像,與乳房攝影機台搭配,可有效減少X光乳房攝影次數,降低放射線暴露劑量。該雙向光學掃描裝置係包含一第一壓板、一第一光學檢測模組、一第二光學檢模組及一第二壓板,利用該雙向光學掃描裝置之該第一光學檢測模組及該第二光學檢測模組對受測乳房之同一檢測位置進行二次及雙向檢查,不管腫瘤位於受測乳房內之位置皆能被檢查出來,對於乳房攝影之結構性影像,另能提供高解析度之功能性乳房斷層影像,有效提升診斷乳房腫瘤之準確性。
