Abstract
The spleen is the most frequently injured abdominal organ. As compared with the liver, the spleen has a weaker parenchyma and is more prone to injury and to difficulty in achieving hemostasis of internal bleeding. Because bleeding is one of the spleen's weak points, transcatheter arterial embolization (TAE) should be performed when arterial injury has occurred without capsular disruption. Multi-detector array CT (MDCT) provides useful and important information for the selection of management in trauma. It provides information about injury to both the vessels and the parenchyma, and can show extravasation, pseudoaneurysm formation and capsular disruption. Classical classifications of organ injury and the revised classification by the Japanese Association for the Surgery of Trauma in 2008 do not contain information on of vascular injuries, which are now recognized as critical findings in management. Nakajima et al. suggested a new MDCT grading system for splenic injury in 2008 which is based on the system by Shanmuganathan and is aimed to correlate with injury management in primary trauma care.