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• W2735934097 abstract "Objective: To compare the image quality (IQ), radiation dose and diagnostic reliability of standard-dose and low-dose lumbar spine (L-spine) multi-detector CT (SDCT and LDCT, respectively) with iterative reconstruction (IR) in trauma patients. Methods: We retrospectively analysed the data of 263 consecutive patients (male:female, 133:130; mean age, 44.3 years) who underwent SDCT (200–300 mAs; 120 kVp) with IR (n = 126) or LDCT (80–150 mAs; 120 kVp) with IR (n = 137) for suspected L-spine fractures between November 2015 and September 2016. Patients were categorized according to their body mass index, as follows: Group 1, ~22.9 kg m–2; Group 2, 23–24.9 kg m–2 or Group 3, ≥25 kg m–2. We compared the quantitative IQ (signal-to-noise ratio), qualitative IQ (subjective image noise and diagnostic acceptability [4-point rating scale; score 1–4], image sharpness [5-point rating scale; score 1–5]) and diagnostic accuracy between the two scan types. Interobserver agreement was also calculated. Results: Overall, SDCT exhibited slightly better diagnostic performance than did LDCT (sensitivity, 96.7–100% vs 94–98.5%; specificity, 95.6–97.0% vs both 95.7%; accuracy, 96.0–98.4%vs94.9–97.1%). However, none of these parameters was significantly different between SDCT and LDCT, either in the whole cohort (p ≥ 0.50) or among the three body mass index groups (p ≥ 0.49). All interobserver agreements were excellent or good (range, 0.776–0.985). Conclusions: The diagnostic performance of LDCT with IR for L-spine fractures was comparable to that of SDCT with IR, with a 47–69% reduction in the radiation dose. Advances in knowledge: LDCT scan can be used as a diagnostic imaging tool for evaluating trauma patients with suspected L-spine fractures." @default.
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• W2735934097 date "2017-08-01" @default.
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• W2735934097 title "Diagnostic usefulness of low-dose lumbar multi-detector CT with iterative reconstruction in trauma patients: acomparison with standard-dose CT" @default.
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• W2735934097 doi "https://doi.org/10.1259/bjr.20170181" @default.
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