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題名 | Digital Stone Image Analysis during Extracorporeal Shock Wave Lithotripsy (ESWL)=體外電震波碎石術之數位影像分析 |
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作者 | 梁景堯; 黃樹乾; 孫永年; 林信男; 張建成; 洪志賢; Liang, Jing-yao; Huang, Shu-chien; Sun, Yung-nien; Lin, Johnny Shinn-nan; Chang, Chien-chen; Hong, Jih-shien; |
期刊 | 中華民國泌尿科醫學會雜誌 |
出版日期 | 19970600 |
卷期 | 8:2 1997.06[民86.06] |
頁次 | 頁63-68 |
分類號 | 416.274 |
語文 | eng |
關鍵詞 | 震波碎石; 影像分析; Extracorporeal shock wave lithotripsy; Image analysis; Image density difference; |
英文摘要 | 作者嘗試設計一套數位化的影像分析系統,提供波碎石機操作者客觀的評估輔助 工具,以避免腸呼吸、骨骼等因素干擾影像品質而影響操作者的,我們利用個人電腦連接到 碎石機,擷取尿路結影像後加以數位化分析,並立即在線上將分析結果報操作者,以協助判 斷是否已達到適當的震波數。 先前已有實驗證實, 尿路結石在 X- 光之下的影強度 (IDD, image density difference ),和其本身厚度成正相關。 因此只要監試結石 IDD 的變化, 就能知道結石瓦解的程度。在我們的實驗中發現,IDD 隨著結石的破裂而降低。當影像強度 的曲線趨於平緩,表示結石已完全粉碎或不再破裂。藉著此一裝置,本系統可應用於臨床碎 石治療,減少不必要的震波,從而使患者接受治療的不適降到最低,節省時間與醫療資源。 我們的實驗結果顯示, 經由數位影像的輔助,最多可以減少 53% 的震波而不影響治療效果 ,的確有發展的價值。 fragmentation speed and the slope of image density difference (IDD) curve. By monitoring the change of the IDD, we can evaluate the degree of stone fragmentation. When the IDD curve becomes flat, the stone is either completely broken or resistant to the shock waves. By applying this design in our in vitro experiment, we have found digital image analysis a useful aid of ESWL that helps to estimate optimal amount of shock waves and to decrease the unnecessary appliance of shock waves. According to our studies, we may decrease shock wave number by as much as 53% without affecting the effect of ESWL treatment. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。