查詢結果分析
來源資料
相關文獻
- 多層切面電腦斷層攝影於大腸病灶之偵測
- 電腦斷層大腸攝影對於大腸病灶之應用
- Rectal Perforation with Extraperitoneal Extravasation of Barium and Retroperitoneal Emphysema during Double Contrast Barium Enema
- Clinical Treatment in Colonoscopic Perforation: A Comparison of Surgical and Conservative Management
- 大腸鋇劑攝影對小孩常見大腸疾病之診斷
- 大腸結核病之內視鏡診斷及臨床分析
- 大腸鋇劑攝影檢查
- A Potential Alternative Treatment of Uncomplicated Painful Diverticular Disease by Trans-colonoscopic Irrigation Technique: A Preliminary Report
- 大腸鋇劑灌腸攝影對大腸直腸所造成的傷害
- 大腸鋇劑灌腸攝影對大腸直腸所造成的傷害
頁籤選單縮合
題名 | 多層切面電腦斷層攝影於大腸病灶之偵測=The Application of Multi-Detector CT Used for Colon Lesion Detection |
---|---|
作者姓名(中文) | 劉冠忻; 李正輝; 喻仲春; 盧建利; 呂坤木; 吳金珠; 陳良光; 蘇誠道; | 書刊名 | 輔仁醫學期刊 |
卷期 | 4:3 民95.09 |
頁次 | 頁131-137 |
分類號 | 416.14 |
關鍵詞 | 虛擬大腸鏡; 大腸內視鏡; 大腸鋇劑攝影; Virtual colonoscopy; Colonoscopy; Barium enema study; |
語文 | 中文(Chinese) |
中文摘要 | 由於科技的進步,電腦斷層攝影由以前的單一切面螺旋式電腦斷層掃描,進步至多切面(multi-slice),並朝向體積式電腦斷層掃描的方式邁進,不僅切面變細提高解析度,更因為掃描與組像的速度增進,而有效地克服因病人無法合作閉氣所產生的假影;經三度空間成像或多方位影像重組技術,使我們可以提高影像品質,此外應用於三度空間攝影後處理技術,我們得以建構虛擬內視鏡的影像來診斷,以減少非必要性或較侵襲性的內視鏡檢查。虛擬大腸鏡是最新的影像診斷技術,它以超快速螺旋電腦斷層及電腦虛擬的影像來檢查充滿空氣的大腸。可使用於診斷大腸瘜肉,大腸癌,及大腸憩室等疾病,與傳統的大腸內視鏡比較,虛擬大腸鏡的優點是安全性較高,只需在肛門放置一條小管,不須像內視鏡般通過整條大腸﹔此外,經電腦技術組合的圖像可以順行或逆行,不會因為腫瘤阻塞而無法顯示前面的大腸,傳統的內視鏡只能向前順行,當遇上腫瘤或其他阻塞即無法前行。虛擬大腸鏡具有避免大腸內視鏡因重複使用檢體夾或消毒不完全所導致血液感染之可能性,同時降低大腸鋇劑攝影在檢查過程中,需灌入高對比顯影劑時所導致腫瘤或腸道破裂之風險,因此虛擬大腸內視鏡不失為一項既安全又為低危險性之檢查。本文目的是應用電腦斷層大腸攝影以偵測大腸病灶,並藉由虛擬大腸鏡與大腸鋇劑攝影及大腸內視鏡做比較,以介紹並分析是否適合推廣為偵測大腸病灶的檢查項目之一。 |
英文摘要 | As the technology has matured, computed tomography (CT) has continued to undergo development, and single-slice spiral scanners have evolved into multislice scanners. Future generations will be based on volumetric CT technology. Multislice CT provides a higher scanner performance that can be used on thinner sections, which reduces the scan time and for longer ranges, which reduce motion or respiratory artifacts, especially in uncooperative patients. Furthermore, CT has truly been transformed from a transaxial cross-sectional modality into multiplanar reformation and various types of 3D imaging as the basis for an expanding variety of 3D visualization techniques to develop virtual endoscopy. We suggest virtual colonoscopy as a screening tool for colorectal entities so as to reduce unnecessary invasive colonoscopic examinations. Virtual colonoscopy is a recently developed technique that uses an ultrafast spiral CT scanner and computer virtual reality software to look at a completely air-filled colon and detect polyps, colorectal neoplasms, and diverticular disease. There are numerous benefits of virtual colonoscopy over conventional colonoscopy. It is more comfortable without having to insert a long tube into the colon. Unlike conventional colonoscopy, virtual colonoscopy is not limited by view direction. By providing both direct antegrade and retrograde visualization perspectives, virtual colonoscopy allows detection of abnormalities proximal to an obstructed segment. It is a safe, noninvasive procedure with low infection and perforation risks. The aim of this study was to compare the detection accuracy of CT colonography and virtual colonoscopy with conventional colonoscopy and a double-contrast barium enema study and discuss evidence of the effectiveness of virtual colonoscopy as an alternative to colonoscopy for the purpose of colon lesion screening offered in a diagnostic setting. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。