Teresa I-Han Liang MD, Presenter: Nothing to Disclose

Jun Wang BSc, Abstract Co-Author: Nothing to Disclose

HeeJun Kang, Abstract Co-Author: Nothing to Disclose

William Chun Ki Lau MD, Abstract Co-Author: Nothing to Disclose

Savvas Nicolaou MD, Abstract Co-Author: Nothing to Disclose

1. Review the pathophysiology and clinical manifestations of acute intestinal ischemia (AII) 2. Discuss the imaging modalities used for diagnosis of AII 3. Describe the spectrum of imaging findings of AII

-Review the pathophysiology, anatomy, and clinical presentation of AII -Review the utility and limitations of imaging modalities used for assessment of AII such as radiographs, ultrasound, angiography, MR angiography and with emphasis on MDCT as the main imaging modality -Demonstrate the spectrum of imaging examples of AII including arterial embolic ischemia, arterial thrombus ischemia, venous ischemia and nonocclusive ischemia -Discuss an imaging-based management algorithm -Review imaging examples of pitfalls and mimics associated with AII -Discuss new imaging techniques applicable for imaging of AII including use of new dose reduction techniques such as Iterative reconstrauction, kVp modulation and dual-energy CT Major teaching points: -AII is not caused by a single entity, but by a multitude of causes, and it is imperative to differentiate them on imaging to aid in management decisions -Key MDCT findings include: mesenteric stranding ,identification of embolic clot focal loss of mural enhancement, target sign, pneumatosis, portal venous gas, and change in number and caliber of mesenteric vessels

http://abstract.rsna.org/uploads/2014/14009499/14009499_t8o2.pdf

Liang, T, Wang, J, Kang, H, Lau, W, Nicolaou, S, Updates and New Concepts of Imaging of Acute Intestinal Ischemia.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14009499.html