• 沒有找到結果。

Sensitivity,表示能找到許多真正的斑塊,但 PPV 只有 5%,表示此方法對整組 資料做大量猜測才導致此種情況。而探究原因後發現,因為我們使用的血管範圍

可能鈣化與狹窄的程序中就無法檢測到,導致這種顯著狹窄在此方法下未能被偵 測到。我們亦嘗試過一開始加入半徑判斷條件偵測,但會因為末端血管的影響而 導致整體辨識率下降。未來或許我們可以加入一些其他的特徵幫助判斷,例如面 積、形狀等等。

除此之外,未來我們可以嘗試將提出的兩種方法應用到另外 30 組測試資料 上,將更能評估我們方法的實用性與準確性。

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