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文献考察：426例の鈍的脾臓損傷例中80％に保存的治療が試みられ，初期CTで14例（4％）に，24-48時間後のfollow-up CTでさらに11例（3％）に脾動脈仮性動脈瘤が発見された．TAEを施行し脾臓温存率は97％．
J Trauma. 2007 May;62(5):1143-7; discussion 1147-8.
The utility of serial computed tomography imaging of blunt splenic injury: still worth a second look?
Weinberg JA, Magnotti LJ, Croce MA, Edwards NM, Fabian TC.
BACKGROUND: Serial computed tomography (CT) imaging of blunt splenic injury (BSI) can identify the latent formation of splenic artery pseudoaneurysms (PSAs), contributing to improved success in splenic salvage. The practice of serial CT imaging, however, has not been embraced. The purpose of this study was to reevaluate the clinical practice of serial CT imaging within the context of an institutional protocol for the nonoperative management (NOM) of BSI. METHOD: Consecutive patients with BSI selected for NOM were identified from our trauma registry. Patients were managed according to protocol, whereby hemodynamically stable patients with PSA on initial or follow-up CT imaging were referred for angiography. Follow-up CT was performed 24 to 48 hours after the initial CT. Data were abstracted from hospital, clinic, and radiology records, and included age, Injury Severity Score, splenic injury grade (SIG), and CT findings. The incidence and timing of PSA identification with respect to subsequent management and outcome were reviewed. RESULTS: Of 426 BSI admissions during a 2.5-year period, 341 (80%) were selected for NOM. Mean follow-up was 39 days, with 76% followed for >or=7 days. Serial CT imaging resulted in the angiographic detection of 14 (4%) early PSAs and 11 (3%) latent PSAs. PSAs were associated with increasing SIG (p
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