Table 4.

Newly proposed Multi-Detector CT (MDCT) grading system, reproduced from Marmery et al. (2007)

Grade
I	● Subcapsular hematoma < 1-cm thick ● Laceration < 1 cm deep into parenchyma
II	● Subcapsular hematoma 1–3-cm thick ● Parenchymal hematoma 1–3-cm diameter ● Laceration 1–3 cm deep into parenchyma
III	● Splenic capsular disruption ● Subcapsular hematoma > 3-cm thick ● Parenchymal hematoma > 3-cm diameter ● Laceration > 3 cm deep into parenchyma
IVa	● Active intraparenchymal and subcapsular splenic bleeding ● Splenic vascular injury (pseudoaneurysm or arteriovenous fistula) ● Shattered spleen
IVb	● Active intraperitoneal bleeding