Journals / Turkish Journal of Gastroenterology / 2001 / Cilt: 12 - Sayı: 1

Kolorektal tümörlerin saptanmasında bilgisayarlı tomografik kolonografi

Computed tomographic colonography in detecting colorectal tumors

Pages
53–58
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: Computed tomographic colonography is a useful diagnostic tool for the majority of protruding masses, stenotic tumors and polyps larger than 5 mm in diameter but the current technology is not accurate in defining diminutive polyps.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/Aims: Colorectal carcinoma is a common cause of death from malignancy and is detected mainly by endoscopic and radiographic examinations.
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Key Findings & Data:Methods: Twenty-three patients suspected of having colorectal tumors on the basis of endoscopic findings and five patients with incomplete colonoscopy were studied by computed tomographic colonography over a 10-month period.
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Conclusion & Impact:Conclusion: Computed tomographic colonography is a useful diagnostic tool for the majority of protruding masses, stenotic tumors and polyps larger than 5 mm in diameter but the current technology is not accurate in defining diminutive polyps.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Polipler · Tanı teknik ve işlemleri · Tomografi

Abstract

Background/Aims: Colorectal carcinoma is a common cause of death from malignancy and is detected mainly by endoscopic and radiographic examinations. The aim of this study was to evaluate the efficacy of computed tomographic colonography in diagnosing colorectal tumors. Methods: Twenty-three patients suspected of having colorectal tumors on the basis of endoscopic findings and five patients with incomplete colonoscopy were studied by computed tomographic colonography over a 10-month period. The helical computed tomographic images were acquired using five mm slice thickness, a pitch of 1.3, a reconstruction interval of 3 mm, 120 kV,110 mA and 512x512 matrix. The results of computed tomographic colonography were compared with the findings of colonoscopy and where present, with the results of surgery and histopathology. Results: A total of 48 lesions were identified on computed tomographic colonography images in 26 patients. All malignant lesions (n=19) were successfully detected with this method. The sensitivities for polyps 10 mm or larger (n=10) and for polyps between 5-9 mm in diameter (n=15) were 90% and 73% respectively. Polyps less than 5 mm in diameter (n=3) were missed. In one patient, cecal inflammation manifesting as mucosal irregularity and nodularity on 3D endoluminal images were noted. Conclusion: Computed tomographic colonography is a useful diagnostic tool for the majority of protruding masses, stenotic tumors and polyps larger than 5 mm in diameter but the current technology is not accurate in defining diminutive polyps.

Özet

Amaç: Malignansiye bağlı ölümlerin en sık görülenlerinden olan kolorektal karsinoma tanısında endoskopik ve radyografik incelemeler önemlidir. Bu çalışmada, bilgisayarlı tomografik kolonografinin kolorektal tümörlerin tanısındaki etkinliğinin belirlenmesi amaçlanmıştır. Yöntem: On aylık bir dönemde, endoskopik incelemede kolorektal tümör şüphesi olan 23 hasta ve kolonoskopik incelemesi inkomplet olan 5 hasta bilgisayarlı tomografik kolonografi ile değerlendirildi. Bilgisayarlı tomografik kolonografi için kullanılan paramet-relerden kesit kalınlığı 5 mm, pitch 1.3, rekonstrüksiyon aralığı 3 mm, 120 kV, 110 mA ve görüntü matriksi 512x512 olarak belirlendi. Bilgisayarlı tomografik kolonografi bulguları, kolonoskopi bulgularıyla ve mevcut olduğu takdirde cerrahi ve histopatoloji bulguları ile karşılaştırıldı. Bulgular: Yirmi altı hastanın bilgisayarlı tomografik kolonografisinde toplam 48 lezyon belirlendi. Malign nitelikteki lezyonların tümü (n=19) bu yöntemle saptanabildi. Yöntemin duyarlılığı 10 mm'den büyük polipler (n=10) için %90, çapı 5-9 mm olan polipler (n=15) için %73 olarak bulundu. Çapı 5 mm'den küçük olan 3 polip bu yöntemle saptanamadı. Bir hastada, 3 boyutlu endoluminal görüntülemede, mukozal düzensizlik ve nodülarite şeklinde izlenenen çekal inflamasyon bulguları belirlendi. Sonuç: Bilgisayarlı tomografik kolonografi, lümene protrüde kitlelerin, stenotik tümörlerin ve çapı 5 mm'nin üzerinde olan poliplerin tanısında yararlı bir yöntemdir. Ancak, günümüz teknik koşullarında 5 mm'den küçük poliplerin bu yöntemle saptanması güç olmaktadır.

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Cite This Article

KÖKTENER, A., ERDEN, A., FITÖZ, S., AKYAR, S. (2001). Kolorektal tümörlerin saptanmasında bilgisayarlı tomografik kolonografi. Turkish Journal of Gastroenterology, Cilt: 12 - Sayı: 1, 53–58. https://ajindex.com/articles/410497

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