乳房腫瘤勁度大於周邊脂肪組織勁度，惡性腫瘤勁度亦高於良性者，因此經常藉由探測乳房局部勁度之差異，判斷組織內是否內含腫瘤與其之良惡性。本研究採用有限元素分析，探討複合仿體於探測過程承受不同負荷之反應。藉由仿體組織與仿體腫瘤於承受單軸壓縮實驗條件下，獲得描述仿體機械性質之超彈性材料組成律所需參數，並經由複合仿體之壓痕分析與相對應實驗比對驗證其合宜性。接續透過橫移分析與橫移實驗檢視複合仿體於探測過程承受負荷情形，藉以瞭解乳房腫瘤於探測過程承受負荷情形。結果顯示數值模擬結果之力量-位移曲線特徵寬度雖略大於實驗結果，其力量峰值預測仍具備相當準確性。並檢視仿體腫瘤直徑大小與埋置深度於橫移條件下，對於探頭承受負荷之影響。

The existence of breast tumors and whether they are benign or malignant is preliminarily judged by differences in stiffness through the probing procedures. In the current study, a finite element analysis was conducted to investigate the reaction of breast phantoms under various loading conditions. A hyperelasticity model was adopted to describe responses of different phantoms, and the corresponding required parameters in the model were evaluated from measurements of the phantom under uniaxial compressive tests. Composite phantoms were fabricated by embedding the phantom tumor into the phantom tissue. Indentations of the composite phantom based on the experiment and those based on the simulation were compared, and the suitability of the selected model was validated. Lateral exploration of the composite phantom was subsequently performed. The stiffness and size of the phantom tumor can be characterized by the profile of relationships between the reaction force and the transverse displacement of the probe. Effects of the size and embedded depth of the phantom tumor on the reaction of the probe were examined as well.

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