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Introduction The bony thoracic cage and crowded vital organs in the thorax make open surgical access difficult and challenging. For these same reasons, the thorax is ideal for image-guided interventions. In addition to procedural skills, a thorough knowledge of the…

Etiology Acute mesenteric ischemia of the small bowel has four major causes: (1) arterial embolism, (2) arterial thrombosis, (3) nonocclusive mesenteric ischemia, and (4) mesenteric venous thrombosis ( Table 26-1 ). Less common causes include aortic dissection, spontaneous dissection of…