Journals / Tanısal ve Girişimsel Radyoloji (Yeni Adı: Dİagnostic & Intervent. Radiol) / 2004 / Cilt: 10 - Sayı: 4

Anatomic variations of the bile ducts: MRCP findings

Biliyer sistemin anatomik varyasyonları: MRKP bulguları

Pages
296–303
DOI
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Diagnosis of these anatomic variations prior to surgical procedures may prevent iatrogenic injury to bile ducts.

📌 3 Key Takeaways

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Objective & Hypothesis:PURPOSE: Anatomic variations of intra or extrahepatic bile ducts may be problematic during surgical procedures.
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Key Findings & Data:MATERIALS AND METHODS: Between July 2000 and April 2004, 581 patients suspected to have pancreatobiliary disease, were referred to our MR unit.
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Conclusion & Impact:Diagnosis of these anatomic variations prior to surgical procedures may prevent iatrogenic injury to bile ducts.
🔬Design:Research Article
📍Scope:2000 Verileri
⚙️Variables:Kolanjiyopankreatografi · manyetik rezonans · Safra kanalları

Abstract

PURPOSE: Anatomic variations of intra or extrahepatic bile ducts may be problematic during surgical procedures. Besides iatrogenic trauma of the bile ducts during cholecystectomy, formation of bile duct stones, recurrent pancreatitis, cholangitis and biliary malignancies can be seen. The aim of this study was to evaluate the frequency of anatomic variations of the biliary tree and to present the magnetic resonance cholangiopancreatography (MRCP) findings. MATERIALS AND METHODS: Between July 2000 and April 2004, 581 patients suspected to have pancreatobiliary disease, were referred to our MR unit. Four hundred and seventy-five patients with ages ranging from 22 to 88 (median: 56) were included in the study retrospectively. MRCP was performed on a 1 Tesla MR unit, using phased-array coil for signal detection. Heavily T2 weighted images were obtained with SSFSE technique. Axial and coronal source images and reformatted images were all evaluated together for the possibility of any anatomic variation. RESULTS: Anatomic variations at different levels of biliary tree were found in 115 patients (24.2%). MRCP showed an aberrant right hepatic duct in 23 patients (4.8%), a right posterior hepatic duct in 27 patients (5.7%), trifurcation in 4 patients (0.8%), a long cystic duct in 8 patients (1.7%), a medial cystic duct insertion in 3 patients (0.63%), a low medial cystic duct insertion in 18 patients (3.8%), a short cystic duct in 1 patient (0.2%), a high localized gallbladder in 5 patients (1%), a vascular compression of common hepatic duct in 12 patients (2.5%), a pancreatobiliary junction anomaly in 3 patients (0.63%). Eleven patients had more than one anatomic variation (2.3%). CONCLUSION: MRCP is a useful, rapid, and non-invasive method for demonstrating the anatomy and the variations of the biliary tree. Diagnosis of these anatomic variations prior to surgical procedures may prevent iatrogenic injury to bile ducts.

Özet

AMAÇ İntra ya da ekstrahepatik safra kanallarında görülebilen anatomik varyasyonlar, cerrahi girişimlerde çeşitli problemlere yol açabilmektedir. Açık ve laparoskopik kolesistektomi sırasında iyatrojenik hasarlanma riski yanı sıra bu varyasyonlar taş oluşumu, rekürren pankreatit, kolanjit ve biliyer malignansilere neden olabilmektedir. Bu çalışmanın amacı, biliyer anatomide görülebilecek varyasyon sıklığını belirlemek ve manyetik rezonans kolanjiyopankreatografi (MRKP) bulgularını sunmaktır. GEREÇ VE YÖNTEM Temmuz 2000-Nisan 2004 tarihleri arasında pankreatobiliyer hastalık şüphesi olan 581 olgu bölümümüze refere edilmiştir. Bunlardan yaşları 22 ile 88 arasında değişen (ortalama 56) 475 olgu retrospektif olarak çalışmaya dahil edilmiştir. MRKP incelemeleri 1 Tesla MR cihazında, faz dizilimli sargı kullanılarak, SSFSE tekniği ile ağır T2 ağırlıklı görüntüler elde edilerek yapılmıştır. Aksiyel ve koronal kaynak görüntüler ile reformat görüntüler anatomik varyasyon olasılığı açısından birlikte değerlendirilmiştir. BULGULAR Çalışmaya dahil edilen 475 olgunun, toplam 115’inde (%24.2) intra ve ekstrahepatik safra yollarında değişik düzeylerde çeşitli anatomik varyasyonlar kaydedilmiştir. Bunlardan 23 olguda aberan sağ hepatik kanal (%4.8), 27 olguda sağ posterior hepatik kanal (%5.7), 4 olguda trifurkasyon (%0.8), 8 olguda uzun sistik kanal (%1.7), 3 olguda sistik kanalın medial birleşimi (%0.63), 18 olguda distal medial birleşim (%3.8), 1 olguda kısa sistik kanal (%0.2), 5 olguda yukarı lokalizasyonlu safra kesesi (%1), 12 olguda ortak hepatik kanal üzerinde vasküler bası (%2.5), 3 olguda pankreatobiliyer bileşke anomalisi (%0.63), 11 olguda ise birden fazla sayıda anatomik varyasyon saptanmıştır (%2.3). SONUÇ MRKP, biliyer anatomi ve varyasyonların gösterilmesinde yararlı, hızlı, tekrarlanabilir ve noninvazif bir inceleme yöntemidir. Cerrahi girişim öncesi bu anatomik varyasyonların gösterilmesi, olası iyatrojenik travmaları önleyebilmektedir.

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Cite This Article

ATMAN, E. D., ERDEN, G. A., ERDEN, İ. (2004). Anatomic variations of the bile ducts: MRCP findings. Tanısal ve Girişimsel Radyoloji (Yeni Adı: Dİagnostic & Intervent. Radiol), Cilt: 10 - Sayı: 4, 296–303. https://ajindex.com/articles/364270

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