Skip to main content

Table 10 Section 6: Whole Body CT – Protocol, key issue 1: CT scout

From: European Society of Emergency Radiology: guideline on radiological polytrauma imaging and service (short version)

Key question: What diagnostic value does the scout of a whole-body CT scan have in the case of a polytrauma patient and how should it be prepared?
No Statement(s) Cons Grade Cons
6.1.1 The scout(s) ought to represent the entire body 100%
strong
GoR
B
100%
strong
6.1.2 For a dose-optimised protocol, separate topograms should be prepared for the cranial CT (at least lateral projection) and the rest of the body (at least anterior—posterior projection). If the arms are raised, this should be done before the body topogram is prepared 100%
strong
GPP
A
86%
normal
Literature: detected = 1195, excluded = 1168, full-text: rated = 27, excluded = 16, included = 11 (guideline: [19, 37, 59, 60]; level 2: [55]; level 3: [27, 29, 57, 61,62,63])
Comments: The CT scout does not only hold information of important findings, it also is the basis to calculate the dose modulation during the CT scan. For protocols with elevated arms, a dose reduction only affects cases where the arms were raised before the CT scout was performed