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頁籤選單縮合
題名 | 乳房超音波自製假體製作與評估=Fabrication and Evaluation on Sonographic Phantom |
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作者 | 江惠如; 韋朝榮; 周宜宏; 林政勳; | 書刊名 | 中華放射線技術學雜誌 |
卷期 | 37:3 2013.09[民102.09] |
頁次 | 頁151-158 |
分類號 | 416.226 |
關鍵詞 | 乳房攝影; 乳房超音波; 洋菜; 仿乳房假體; Mammography; Breast ultrasonography; Agar; Breast phantom; |
語文 | 中文(Chinese) |
中文摘要 | 國內女性乳癌發生率近年來有逐年增加趨勢,其存活率和死亡率與腫塊大小、期數及淋巴結有無轉移有關,所以,早期發現早期治療是重要關鍵。目前國內乳癌篩檢以乳房攝影(mammography)為主,但乳房攝影仍有其缺點,例如年輕女性、緻密性乳房或腫塊追蹤等其敏感度較差,若利用乳房超音波(breast ultrasonography)加以輔助檢查則準確率可提高許多。乳房超音波診斷正確率和判讀醫師及操作人員的經驗技能有很大相關性,所以超音波判讀及操作的培訓與練習是相當重要。本文利用以洋菜(agar)為基質內含仿乳房病灶的自製仿乳房假體,假體基質為四種不同洋菜濃度(3%、6%、12%、18%),依平均聲速、製作過程、成品及超音波影像等因素比較其差異,並依真實乳房病灶超音波影像表徵,請專家們評判相仿病灶影像表徵的物質以找出相仿者。四種濃度假體平均聲速皆無顯著差異,濃度越高製作完成時間越短、越硬且超音波影像假影越多。仿病灶超音波影像統計結果:仿良性腫塊物質為椰果、乳膠手套水球、未熟透粉圓、豆花;仿惡性腫塊物質為草莓醬、布丁、乳膠手套凝膠球、明膠加碳粉球等8 種較相仿。仿乳房假體提供操作者了解乳房超音波掃描技術及練習,初步辨別腫塊良、惡性影像特徵,可增加其學習興趣與信心。 |
英文摘要 | The incidence rate of breast cancer in Taiwan has been progressively increasing. The survival rate is closely related with the tumor staging. As a result, early detection and early treatment are still the important key factors to improve survival rate. Mammography is currently the major breast cancer screening modality in Taiwan. However, there are several shortcomings regarding mammography screening. The sensitivity of the mammography is less optimal for the young women and dense breasts as well as for the mass lesion follow-up. In contrast, breast ultrasound may increase the accuracy as an adjunct examination. The diagnostic accuracy of breast ultrasound is operator dependent, heavily depending upon the technical training and practice. In this article, we present the materials and methods to make agar-based breast phantom that contains lesion-mimicking substances. Four different concentrations of agar (3, 6, 12, and 18%) were used in breast phantoms. We characterized these phantoms in respects of average sound conduction in the phantom, production procedures, imaging patterns. Three breast ultrasound specialists were asked to grade the best mimickers for the breast nodular lesions for phantom production. The average sound conduction velocity in these four different phantoms is similar without significant difference. It takes shorter time to produce a higher concentrated phantom, which also presents with more image artifacts. Several materials are mimickers for benign breast lesions, such as coconut jello, small water balls, strawberry jelly, undercooked gelatin beads, bean curd jello. Malignant lesion mimickers are puddings, gel balls, cellulose mixed with carbon powders. In conclusion, we have presented an easy and cheaper method to make breast phantoms for beginners to practice breast ultrasound scanning and recognizing lesion patterns. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。