Zusammenfassung
Vaskuläre Pathologien sind seltene Ursachen für den klinischen Zustand eines akuten Abdomens. Liegt eine vaskuläre Erkrankung vor, ist jedoch aufgrund der hohen Mortalität eine zügige Diagnostik von großer Wichtigkeit. Bei den Erkrankungen der abdominellen Gefäße sind arterielle von venösen Ursachen zu unterscheiden. Ein Verschluss der A. mesenterica superior ist die häufigste Ursache für die akute Mesenterialischämie, daneben sind Blutungen in den abdominellen Gefäßprovinzen des arteriellen Gefäßbaums von Bedeutung. Venöse Pathologien betreffen thrombotische Verschlüsse der Pfortader, der V. mesenterica und der V. cava.
Die Multidetektor-CT (MDCT) ist zur Diagnostik vaskulärer Erkrankungen des Abdominalraums prädestiniert. Mit mehrphasigen Untersuchungsprotokollen gelingt es, den arteriellen und venösen Gefäßbaum zuverlässig darzustellen und Erkrankungen mit hoher Sensitivität und Spezifität zu diagnostizieren. Obwohl die Angiographie bzgl. der Diagnostik weitgehend von der MDCT abgelöst wurde, konnten durch Verbesserungen der Kathetertechnologie neue interventionelle Möglichkeiten geschaffen werden. Hier ist insbesondere an die minimalinvasive Versorgung gastrointestinaler Blutungen zu denken.
Abstract
Vascular pathologies are rare causes of an acute abdomen. If the cause is a vascular disease a rapid diagnosis is desired as vascular pathologies are associated with high mortality. A differentiation must be made between arterial and venous diseases. An occlusion of the superior mesenteric artery is the most common reason for acute mesenteric ischemia but intra-abdominal arterial bleeding is also of great importance. Venous pathologies include thrombotic occlusion of the portal vein, the mesenteric vein and the vena cava.
Multi-detector computed tomography (MDCT) is predestined for the diagnostics of vascular diseases of the abdomen. Using multiphasic contrast protocols enables reliable imaging of the arterial and venous vessel tree and detection of disorders with high sensitivity and specificity. Although conventional angiography has been almost completely replaced by MDCT as a diagnostic tool, it is still of high importance for minimally invasive interventions, for example in the management of gastrointestinal bleeding.
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Juchems, M., Aschoff, A. Diagnostik vaskulärer Erkrankungen als Ursache für das akute Abdomen. Radiologe 50, 246–251 (2010). https://doi.org/10.1007/s00117-009-1904-1
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DOI: https://doi.org/10.1007/s00117-009-1904-1