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題 名 | Computed Tomography in the Diagnosis of organic Bowel Obstruction=器質性腸阻塞之電腦斷層攝影診斷 |
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作 者 | 潘慧本; 黃哲勳; 陳建達; 石明誠; 莫景棠; 簡婉儀; 楊建芳; | 書刊名 | 中華醫學雜誌 |
卷 期 | 58:2 1996.08[民85.08] |
頁 次 | 頁108-113 |
分類號 | 416.14 |
關鍵詞 | 電腦斷層攝影; 腸子; 阻塞; Computed tomography; Intestine; Obstruction; |
語 文 | 英文(English) |
中文摘要 | 背景 X光素片在診斷腸道阻塞上是個很好的工具,準確性據報導可 以到50至60%。雖然阻塞部位可以由X光素片上來推測,但是阻塞的原因卻很 難評估。鋇劑的檢查相當耗時,因此並不適用在馬上要開刀的病人。本實驗的 目的就在於探討電腦斷層在診斷器質性腸阻塞的角色。 方法 113個臨床上懷疑腸道阻塞的病人曾接受CT檢查,所有的病人均以靜 脈注射顯影劑後做全腹部掃描。我們在近端腸阻塞時,以前行性追蹤腸漲大的 部份,而在遠端腸阻塞時,則沿著腸塌陷部份逆向追蹤來定阻塞的部位。尋找 阻塞原因的一個簡單力法,就是在漲大腸段與塌陷腸段間作一分隔線,沿著此 線去尋找腸段內、腸壁上帘或外性病因。我們以診斷要點一(腸口徑突然變小) 以及診斷要點二(軟組織合併腸漲大)來評估器質性阻塞的可能性,再由電腦斷 層上其他的發現來推測阻塞的原因。以上這些病人均接受手術,內視鏡檢查, 並經過臨床之追蹤,其結果與電腦斷層來作比較。 結果 88位病人證實有腸阻塞,而25個病人則否。根據診斷要點一,其敏感 性為59.1%,特異性為88%;而根據診斷要點二,其敏感性只有56.3%,可是特 異性卻高達100%。如果將診斷要點一與二結合起來(符合任要點者則視為腸阻 塞)則其敏感性可到100%,特異性可到88%而且精確度到97.3%。其中76個病 人(86%)可正確推斷出阻塞原因。 結論 我們的結果顯示,由於電腦斷層的高精確度以及效率,在急診病人懷疑 腸道阻塞時,電腦斷層可以是個常規性的影像診斷工具。 |
英文摘要 | Background. This study examined the usefulness of computed tomography (CT) scan for cases of organic intestinal obstruction, with two simple criteria. Methods. One hundred and thirteen patients with clinical suspicion of bowel obstruction were referred for CT scans. A line was drawn between the dilated proximal, and the collapsed distal bowels. A careful search was conducted on this line for obstructive lesions. The results were reported to be organic obstruction if there was an abrupt change of caliber (Criterion I) or a soft tissue mass around the dilated bowel (Criterion II). The judgment based on the CT findings. Results. Eighty-eight cases proved to have bowel obstruction. With Criterion I, the sensitivity was 59.1%, and specificity, 88%: with Criterion II, the sensitivity was 56.3% and specificity 100%. If either of them was considered to be a positive sign of organic obstruction, the sensitivity was 100%, the specificity 88% and the accuracy 97.3%. The nature of the obstructions were precisely predicted in 76 patients (86%). Conclusions. With these two simple criteria, CT scan can achieve high accuracy and is a recommendation in virtually every instance when intestinal obstruction is suspected. |
本系統中英文摘要資訊取自各篇刊載內容。