Приблизительно по-русски:
Для пациентов с политравмой компьютерная томография (КТ) всего тела в раннем периоде значительно повышает возможности к выживанию, согласно результатам ретроспективного мультицентрового исследования...

И еще:
"Whole-body CT is recommended as a standard diagnostic method during the early resuscitation phase for patients with polytrauma."

КТ всего тела рекомендуется, как стандартный метод диагностики во время ранней фазы интенсивной терапии для пациентов с политравмой.

Аргументация слкдующая:
The investigators used the data recorded in the trauma registry of the German Trauma Society to determine survival outcomes for 4621 patients with blunt trauma who received whole-body or non–whole-body CT. Survival probability was calculated according to the trauma and injury severity score (TRISS), revised injury severity classification (RISC) score, and standardized mortality ratio (SMR, ratio of recorded to expected mortality).

Of the 4621 patients, 1494 (32%) underwent whole-body CT. Of these patients, 3364 (73%) were men. Mean age was 42.6 ± 20.7 years, and mean injury-severity score was 29.7 ± 13·0. Based on TRISS, SMR was 0.745 (95% confidence interval [CI], 0.633 - 0.859) for patients who underwent whole-body CT vs 1.023 (95% CI, 0.909 - 1.137) for those who underwent non–whole-body CT (P < .001).

Based on the RISC score, SMR was 0.865 (95% CI, 0.774 - 0.956) for patients who underwent whole-body CT vs 1.034 (95% CI, 0.959 - 1.109) for those who underwent non–whole-body CT (P = .017). Relative risk reduction (RRR) in mortality rate based on TRISS was 25% (95% CI, 14% - 37%) vs 13% (95% CI, 4% - 23%) based on RISC score. Whole-body CT was an independent predictor for survival (P ≤ .002), even after multivariate adjustment for hospital level, year of trauma, and potential center effects. To prevent 1 death, the number needed to scan was 17 based on TRISS and 32 based on RISC calculation.

Из статистических выкладок переведу только одну фразу: "Для предотвращения одной смерти необходимо выполнение 17-ти КТ (если считать по методике TRISS) или 32-х сканирований (если считать по методике RISC)"

В порядке особого цинизма - никто не возьмется подсчитать экономическую целесообразность? А то кризис на дворе, понимаете-ли.