The median effective dose and number of examinations per quarter year in mSv for thorax-abdomen-pelvis CT examinations.

<p>With the introduction the IR system (between 1/11 and 2/11) a significant reduction in radiation exposure can be reported. The clinical value of a DMS is demonstrated with the increase in effective dose in 4/11 and the direct detection and correction. </p

The median effective dose and number of examinations per quarter year in mSv for all examination between January 2010 and December 2012.

<p>With the introduction the IR system (between 1/11 and 2/11) a significant reduction in radiation exposure can be reported.</p

The median effective dose and number of examinations per quarter year in mSv for low dose scans of the cranial (for example sinuses).

<p>Note it is important to point out that for unenhanced neurological CT scan the effect of IR in combination with a wide-detector configuration is naturally minor.</p

SMR subgroup analysis of the different shock groups at hospital admission (<90, 90-110, and >110 mmHg).

<p>The data points are drawn at the mean blood pressure value of the each group. The values of the SMRs are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068880#pone-0068880-t004" target="_blank">table 4</a>. The whiskers show the standard error. SMR  =  standardized mortality ratio.</p

Standardized mortality ratios – SMRs.

<p>Data are given as number of patients or % (mortality rate). SMR  =  standardized mortality ratio, BP  =  blood pressure on admission; RISC  =  revised injury severity classification score (mortality prognosis); p-value: t-test (two sided) comparing the two SMRs of each subgroup; NNT  =  number needed to treat or scan.</p

The Revised Injury Severity Classification (RISC) – Score.

<p>New ISS  =  new injury severity score; GCS  =  Glasgow coma scale; PTT  =  partial thromboplastin time; * Systolic blood pressure <90 mmHg/haemoglobin level <9 g/dL/≥10 units of packed red blood cells; The RISC score is used to calculate the probability of death of a trauma patient. It is one of the most precise prognostic major trauma score <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068880#pone.0068880-Lefering1" target="_blank">[28]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068880#pone.0068880-Lefering2" target="_blank">[44]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068880#pone.0068880-Ruchholtz2" target="_blank">[45]</a>.</p

Characteristics of severely injured patients with information about CT during trauma room treatment.

<p>Data are given as number of patients (% of total patients) or mean ± SD, unless indicated otherwise. SBP Systolic blood pressure, GCS Glasgow Coma Scale; ICU Intensive Care Unit; PRBC packed red blood cells; ISS Injury Severity Score; AIS abbreviated injury scale. RISC  =  revised injury severity classification score; p-value (comparison of WBCT vs. non-WBCT group): χ² test or Mann-Whitney-U test (two sided), *MOF, defined as organ failure of two systems of >2 SOFA-score points of at least 2 days duration <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0068880#pone.0068880-Vincent1" target="_blank">[46]</a>.</p

Adjusted logistic regression models 2,3 and 4; shock-subgroups.

<p>RISC  =  revised injury severity classification, CI 95%  =  confidence interval; * Inverse logistic transformation of the predicted outcome probability of RISC (mortality).</p

Adjusted logistic regression model 1, all patients.

<p>RISC  =  revised injury severity classification, CI 95%  =  confidence interval; * Inverse logistic transformation of the predicted outcome probability of RISC (mortality).</p

Time flow of CT scans at different dose levels.

<p>First, all native scans were performed. Afterwards, contrast enhanced scans were acquired, in a random order of the different dose levels. There was a gap of 30 minutes between the scans. 100 mAs scan ( =  base of the simulations) was achieved twice in order to minimize discrepancies between originals and simulations caused by differences in contrast accumulation.</p