Emergency & Trauma
Solid-organ injury grading and acute care scoring.
Grades renal trauma on contrast CT according to the 2018 revision of the AAST organ injury scale, including the vascular-injury upgrade rules.
Grades hepatic trauma on CT with the 2018 revision of the AAST organ injury scale, including vascular-injury and active-bleeding criteria.
Grades splenic trauma on CT with the 2018 revision of the AAST organ injury scale, in which any splenic vascular injury is at least grade IV.
Decides whether a non-contrast head CT is warranted after a minor head injury (Glasgow Coma Scale 13-15) using five high-risk and two medium-risk criteria. Any single criterion present means the rule recommends imaging.
Identifies blunt-trauma patients who can forgo cervical spine imaging. Imaging is considered unnecessary only when all five low-risk criteria are absent: no midline tenderness, no focal deficit, normal alertness, no intoxication, and no distracting injury.
Stratifies children under 18 with minor head trauma (GCS 14-15) into CT recommended, observation versus CT, or very low risk with no CT, using separate predictor trees for children younger than 2 years and children 2 years or older.
Quantifies pneumothorax size on chest radiographs with the Collins regression (CT-calibrated) and the Rhea average-interpleural-distance nomogram (PA and supine AP variants), and classifies simple depths against the BTS 2010 (2 cm at the hilum) and ACCP (3 cm apex-to-cupola) thresholds with the corresponding first-line management.
Combined clinical decision rules that identify which adults with blunt ankle, midfoot, or knee trauma need radiographs. Selecting the body region unlocks the validated criteria for that rule; any positive criterion indicates imaging.
Assigns traumatic brain injury CT findings to Diffuse Injury I–IV, Evacuated Mass Lesion, or Non-Evacuated Mass Lesion using basal cisterns, midline shift, and mass lesions >25 mL, with prognostic mortality context.
Sums basal cistern status, midline shift, epidural mass lesion (protective when present), and IVH/tSAH into a 1–6 Rotterdam CT score that estimates six-month mortality after moderate–severe TBI.
Grades chest wall trauma from contusion and few closed rib fractures through flail segments to bilateral flail chest using the AAST organ injury scale.
Grades thoracic vessel injuries from named small arteries/veins through great vessels to uncontained aortic or pulmonary hilar transection per AAST OIS IV.
Grades blunt cerebrovascular injury (carotid/vertebral) using the Biffl/Denver scale, which is the grading scheme incorporated into the AAST organ injury scale for cervical vascular injury.
Grades blunt and penetrating cardiac injury from minor ECG changes and pericardial wounds through chamber perforation and avulsion using the AAST cardiac OIS.
Grades pulmonary contusion, laceration, air leak, intraparenchymal hematoma, and hilar vascular injury according to the AAST lung organ injury scale.
Grades scrotal soft-tissue injury from contusion through partial and major avulsion using the AAST scrotum organ injury scale.
Grades testicular injury from contusion/hematoma through tunica albuginea laceration with parenchymal loss to complete destruction or avulsion.
Grades penile trauma from cutaneous injury through Buck fascia and cavernosal/urethral defects to partial or total penectomy-level loss.
Grades ureteral trauma from contusion through partial and complete transection to avulsion with long-segment devascularization per AAST OIS III.