Travmatik koroner arter yaralanması

Özet

Künt göğüs travması veya yüksek enerjili yavaşlama sonrası koroner arter diseksiyonu gelişebilir. Koroner arter diseksiyonu künt göğüs travmasının seyrek ve yaşamı tehdit edebilen bir komplikasyonudur; eşlik eden yaralanmalar koroner hasar veya infarktüs tanısının gözden kaçmasına yol açabilir. Koroner BT anjiyografi, travmatik koroner yaralanma şüphesinde koroner anatomiyi değerlendirmeye yardımcı olabilir; metal artefaktı tanısal görüntü kalitesini sınırlayabilir. Travma BT'sinde koroner arterlerin değerlendirilmesi teknik olarak kısıtlanabilir; metal artefaktı tanısal görüntü kalitesini düşürebilir.

Faz ve pencere

BTA tanısal

Travmatik koroner yaralanma şüphesinde koroner BT anjiyografi koroner anatomiyi değerlendirmeye yardımcı olabilir; metal artefaktı görüntü kalitesini sınırlayabilir.

Arteriyel

Travma BT'sinde perikardiyal hematom ve odaksal kontrast ekstravazasyonu görülebilir; koroner BT anjiyografi, şüpheli travmatik koroner yaralanmada koroner anatomiyi değerlendirmeye yardımcı olur.

Önerilen pencereler: Anjiyo (G 600 / M 150), Mediasten (G 350 / M 50), Yumuşak doku (G 400 / M 40).

BT bulguları

• Koroner arter diseksiyonu, künt göğüs travması sonrası gelişebilen yapısal bir koroner yaralanmadır.
• Fokal düzensiz daralma, ani kalibrasyon kaybı ya da kontrast dolmayan segment tromboz/oklüzyon lehinedir.
• Damar dışına kontrast geçişi, koroner yaralanma ve aktif kanama olasılığını düşündürür.
• LAD yaralanmasında anterior duvar ve septum miyokart kontrastlanması özellikle gözden geçirilir; LAD apeksi besliyorsa apeks de değerlendirilir.
• Miyokart kontrastlanma azalması koroner tıkanıklıkla ilişkili hipoperfüzyonda görülebilir; travma sonrası kontüzyon da fokal düşük atenüasyon oluşturabildiğinden BT bulgusu tek başına nedeni ayırt ettirmez.
• Hemoperikard veya perikardiyal hematom koroner duvar rüptürüne eşlik edebilir.
• Kalp hareketi ve yetersiz koroner opasifikasyon lümen konturunu bozarak yalancı darlık veya değerlendirme kısıtlılığı oluşturabilir.
• Koroner yaralanma travma sonrası başlangıçta belirgin olmayabilir; yeni iskemi bulguları, eşlik eden koroner hasar olasılığının yeniden değerlendirilmesini gerektirebilir.

Normalde

Şüpheli koroner lümen bulgusunu miyokart perfüzyonuyla birlikte değerlendirin; LAD dolum kusuruna sol ventrikül hipoperfüzyonu eşlik edebilir.

Ayırıcı tanı

Koroner ateroskleroz

kalsifiye veya yoğun nonkalsifiye plak lümen daralmasına yol açabilir; plak morfolojisi diseksiyondan farklıdır.

Koroner vazospazm

travma sonrası koroner daralma ve iskemiye eşlik edebilir; tek başına lümen daralması diseksiyon tanısı koydurmaz.

Spontan koroner arter diseksiyonu

travma öyküsü yerine spontan iskemi bağlamı öne çıkar; BT morfolojisi örtüşebilir.

Hareket artefaktı

kalp hareketi koroner sınırları bulanıklaştırabilir ve komşu kesitlerde yinelenmeyen yalancı çift kontur oluşturabilir.

Miyokart kontüzyonu

miyokart hipoenhansmanı görülebilir; bu bulgu tek başına koroner lümen hasarını kanıtlamaz.

Tuzaklar

• Kalp hareketi koroner boyunca basamaklanma yaratır; olası flebin aynı düzlemde ardışık kesitlerde sürüp sürmediğini ve ortogonal rekonstrüksiyonları kontrol edin.
• Koroner ostium çevresindeki hareket artefaktı lümen konturunu bulanıklaştırabilir; ostiumu ardışık kesit ve farklı düzlemde yeniden izleyin.
• Rutin travma BT’sinde, özellikle metal artefaktı koroner görünürlüğü bozuyorsa, damar değerlendirmesi kısıtlanabilir; şüpheli bölgede çok düzlemli rekonstrüksiyonlar değerlendirmeye yardımcı olur.

Kendini dene

1. Travmatik koroner BT anjiyografide sağ koroner arterin akut marjinal dalından kontrast ekstravazasyonu ve perikardiyal hematom görülüyor. En olası tanı hangisidir?

   • Travmatik koroner arter yaralanması
   • Koroner arter miyokart köprüsü
   • Koroner arter kalsifikasyonu
   • Pulmoner arter yaralanması
   Cevabı göster

   Travmatik koroner arter yaralanması. Koroner daldan kontrast ekstravazasyonu ve çevresindeki perikardiyal hematom travmatik koroner arter yaralanmasını destekler.

2. Travmatik koroner BT anjiyografide damar görünürlüğünü sınırlayabilecek bulgu hangisidir?

   • Metal artefaktı
   • Damar duvarının düzgün opasifikasyonu
   • Çok düzlemli rekonstrüksiyon
   • Koroner arterin kontrastla dolması
   Cevabı göster

   Metal artefaktı. Metal artefaktı koroner BT anjiyografide tanısal görüntü kalitesini sınırlayabilir.

İlgili konular

• Miyokart kontüzyonu
• Künt travmatik aort yaralanması

Kaynaklar

Bu sayfadaki 33 cümle ve 2 quiz sorusu aşağıdaki kaynaklardan alıntılarla otomatik olarak karşılaştırıldı; 25 cümle bu karşılaştırmada düzeltildi (2026-10-09).

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Eğitim amaçlıdır; hasta başında tanı ve tedavi kararının yerine geçmez, tıbbi tavsiye değildir. Metinler yapay zekâ desteğiyle yazıldı ve otomatik bir adımda kaynak alıntılarıyla karşılaştırıldı; bu bir tıbbi doğrulama değildir ve içerik uzman radyolog incelemesinden geçmedi. Klinik kararlarda güncel kılavuzları, kurum protokollerini ve radyoloji raporunu esas alın.