Travma BT sistematik okuma kontrol listesi BT bulguları

Özet

Çoklu travmada sistematik okuma, yaşamı tehdit eden bulguların ve kolay atlanan anatomik bölgelerin tutarlı biçimde taranmasına yardım eder. Beyin ve kafa tabanı değerlendirmesi tüm vücut incelemesinin ilk bölümüdür; kafa kontrastsız serisi, boyun damar görüntülemesi ve gövde fazları aynı bilgi türünü sağlamaz. Aksiyel seri, multiplanar rekonstrüksiyon ve uygun yumuşak doku-kemik pencerelerini birlikte kullanmak lezyonun uzanımını netleştirir. Sistematik kontrol listesi ve tutarlı tarama paterni izlenmediğinde, eşlik eden önemli yaralanmaların radyolojik olarak kaçırılma riski artar.

Okuma sırası

Hemisferler, falx ve sisternalar. Orta-ağır travmatik beyin hasarında ilk nörogörüntüleme incelemesi olarak kontrastsız kafa BT'sini değerlendirin.
Falx cerebri. Subdural hematomun tentorium ve falx cerebelli boyunca yeniden dağılım gösterip göstermediğini değerlendirin.
Orta hat ve lateral ventriküller. Travmaya bağlı herniasyon olgularında BT değerlendirmesinde hematom, ventriküller, orta beyin ve perimezensefalik sisternalar birlikte incelenebilir.
Bazal sisternalar ve kafa tabanı. Kafa ve boyun travması kuşkusunda, modified ve expanded Denver ölçütlerini karşılayan seçilmiş olgularda BTA eklenebilir.

Faz ve pencere

Kontrastsız tanısal: Kafa ve spinal kemik travmasında akut kan, parankim hasarı ve kırık kontrastsız seride aranır; kontrast fazı bunların başlangıç taramasının yerini almaz.
BTA: Kafa tabanı kırığı karotis kanalına uzanıyorsa veya künt serebrovasküler yaralanma kuşkusu varsa boyun ve intrakraniyal damarlar BT anjiyografide değerlendirilir; tüm travma hastalarına rutin değildir.
Portal: Gövde organ ve yumuşak doku yaralanmaları IV kontrastlı gövde ediniminde incelenir; bu fazın varlığı kontrastsız kafa incelemesini gereksiz kılmaz.

Önerilen pencereler G genişlik, M merkez; değerler Hounsfield birimi (HU)

BeyinG 80 / M +40
SubduralG 200 / M +75
KemikG 1800 / M +400
AnjiyoG 600 / M +150
Yumuşak dokuG 400 / M +40
AkciğerG 1500 / M −600
MediastenG 350 / M +50
BatınG 400 / M +50

BT bulguları

Akut subdural hematom, tentoryum ve falx cerebelliye yeniden dağılabilir.
Parankim ve ventriküller — kortikal kontüzyon, derin kanama, intraventriküler kan ve gri-beyaz cevher sınırını değerlendir.
Kitle etkisi değerlendirilirken orta hat kayması ve bazal sisternaların basısı gibi bulgular birlikte incelenir.
Damar kuşkusu — kanal geçişi, düzensiz damar konturu veya dolum kusurunu BTA varsa damar lümeninde ara.
Görüntülenen diğer alanlar — toraks, abdomen-pelvis, damarlar, kemikler ve yumuşak dokuyu tarama kapsamı ve kontrast fazına göre sırala.

Normalde

Normal çoklu travma BT'si, baştan pelvise görüntülenen alanlarda akut travmatik yaralanma saptanmaması olarak tanımlanır. Görüntüleme kapsamındaki bölgeleri sistematik ve kontrol listesine dayalı biçimde sırayla değerlendirin.

Normal BT ile kıyasla

Aynı bölgenin, kaynak veri setinde patoloji içermediği belirtilen bir BT incelemesini kesit kesit kaydırın; organ sınırlarını açarak anatomiyi hasta görüntüsüyle karşılaştırın. Küçük rastlantısal bulgular tümüyle dışlanmamıştır.

Kaynak: TotalSegmentator v2.01 veri seti (Wasserthal ve ark., Radiology: Artificial Intelligence 2023), CC BY 4.0, vaka s0103; organ sınırları veri setinin otomatik segmentasyonundan, birleştirilerek sadeleştirildi. Görüntüler 2,5 mm kesit aralığına yeniden örneklendi.

Ayırıcı tanı

Subdural hematom, kafa travması sonrası görülebilen akut intrakraniyal kanamalardan biridir.
Epidural hematom, travmatik beyin hasarında görülebilen ekstraaksiyel kanamalardandır.
Travmatik subaraknoid kanama: hiperdansite kortikal sulkus veya bazal sisterna içinde kalır.
Beyin kontüzyonu: özellikle gri-beyaz cevher sınırında kortikal-subkortikal parankimde yamalı kanama yapar.

Tuzaklar

Akut subdural hematomun tentoryum ve falx cerebelliye yeniden dağılabileceğini göz önünde bulundurun.
Kafa tabanı kemik çizgilerini değerlendirirken koronal ve sagittal reformasyonları da inceleyin.
Damar yaralanması için BTA endikasyonu varsa bunu sıradan kontrastlı gövde serisinin kapsadığını varsayma; boyun damarlarının uygun zamanlama ve kapsamını doğrula.
Tüm vücut BT değerlendirmesinde görüntüleme kapsamının baştan pelvise kadar uzandığını doğrulayın.

Kendini dene

Subdural hematom hangi dural yansımalar boyunca yeniden dağılım gösterebilir?
Cevabı göster
Tentorium ve falx cerebelli boyunca. Subdural hematom tentorium ve falx cerebelli boyunca yeniden dağılım gösterebilir.
Travma sonrası kafa içinde hava görülüyor. Kafa içindeki gazın radyolojik adı nedir?
Cevabı göster
Pnömosefali. Pnömosefali, kafa boşluğu içinde hava bulunmasıdır; olguların çoğu kafa travması veya cerrahi işlem sonrasında ortaya çıkar.

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Kaynaklar

Bu sayfadaki 32 cümle ve 2 quiz sorusu aşağıdaki kaynaklardan alıntılarla otomatik olarak karşılaştırıldı; 14 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.