Abdominal aorttaki anatomik varyasyonlar

Öz

Amaç: Çalışmamızın amacı, çeşitli ön tanılar için çok dedektörlü bilgisayarlı tomografi (ÇDBT) anjiyografisi uygulanan hastalarda çölyak arter, superior mezenterik arter (SMA), inferior mezenterik arter (İMA), renal arterler (RA) ve hepatik arterlerde (HA) varyasyonları belirlemektir. Gereç ve Yöntemler: Bu çalışmada, ÇDBT anjiyografisi yapılan 200 hasta retrospektif olarak analiz edilmiştir. Çölyak trunkus varyantları için Uflacker sınıflandırması, HA varyasyonları için Michels ve Hiatt sınıflandırmaları kullanılmış ve RA'lar, sayı ve ekstra-RA varlığı açısından değerlendirilmiş, replase veya aksesuar RA'lar sayısal anomaliler olarak sınıflandırılmıştır. Bulgular: Hastaların %92,0'sinde klasik çölyak trunkus mevcuttu ve varyasyonlar arasında hepatosplenik ve gastrosplenik trunkuslar her biri %3,5 oranında görüldü. Çölyak trunkusun klasik dallanma deseni hastaların %91,5'inde saptanırken, %1,0'inde sol gastrik arterin splenik arterden veya doğrudan abdominal aortadan kaynaklandığı görüldü. SMA orijini vakaların %95,5'inde klasik olup, %2,5'inde hepatomezenterik trunkus orijini ve %1,0'inde bimesenterik trunkus orijini vardı. İMA için, hastaların %98,4'ünde klasik bir orijin mevcuttu. Sağ RA sayısı 2 veya daha fazla olanların oranı %13 iken, sol RA sayısı 2 veya daha fazla olanların oranı %12,5 idi. Sağ HA varyasyonları hastaların %14,5'inde gözlenirken, sol HA varyasyonları %11,5 oranında mevcut idi. Sonuçlar: Çalışmamız, MSBT yapılan hastalarda çölyak arterlerde, SMA’da, RA’da ve HA’da önemli anatomik varyasyonlar olduğunu ortaya koymuştur. Bulgular, doğru tanı ve cerrahi planlama için bu varyasyonların tanınmasının önemini vurgulamaktadır.

Anahtar Kelimeler

• Çölyak arter
• Superior mezenterik arter
• Renal arter
• Anatomik varyasyonlar
• Çölyak trunkus
• Hepatik arter

Anatomical variations in the abdominal aorta

Öz

Aim: The aim of our study is to identify variations in the celiac artery, superior mesenteric artery (SMA), inferior mesenteric artery (IMA), renal arteries (RA), and hepatic arteries (HA) in patients who underwent multidetector computed tomography (MDCT) angiography for various preliminary diagnoses. Materials and Methods: This study retrospectively analyzed 200 patients who underwent MDCT angiography. The Uflacker classification was used for celiac trunk variants, Michels and Hiatt classifications for HA variations, and RA were assessed for number and presence of extra-RA, with aberrant or accessory RA classified as numerical anomalies. Results: A classical celiac trunk was present in 92.0% of patients, with variations including hepatosplenic and gastrosplenic trunks each in 3.5% of cases. The classical branching pattern of the celiac trunk was found in 91.5% of patients, while 1.0% had the left gastric artery originating from the splenic artery or directly from the abdominal aorta. SMA origin was classical in 95.5% of cases, with 2.5% showing hepatomesenteric trunk origin and 1.0% displaying bimesenteric trunk origin. For the IMA, 98.4% of patients had a classical origin. The ratio with a right RA count of 2 or more was 13%, while the ratio with a left RA count of 2 or more was 12.5%. Right HA variations were observed in 14.5% of patients, whereas left HA variations were present in 11.5%. Conclusions: Our study identified significant anatomical variations in the celiac artery, SMA, RA, and HA in patients undergoing MSCT. The findings highlight the importance of recognizing these variations for accurate diagnosis and surgical planning.

Anahtar Kelimeler

• Celiac artery
• Superior mesenteric artery
• Renal artery
• Anatomical variations
• Celiac trunk
• Hepatic artery

Kaynakça

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