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Table 1 Relative percentage difference for non-corrected and corrected images of hardware to nonattenuation-corrected and attenuation-corrected image of blank scan. In vivo data from TX-based AC and CT

From: Improved PET/MRI accuracy by use of static transmission source in empirically derived hardware attenuation correction

  NAC TX-based AC CT-based AC TX-to-CT
  Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Acrylic cylinder 2.2 ± 1.1 0.4 ± 1.4 − 1.9 ± 0.8
Posterior array 1.6 ± 0.6 0.5 ± 1.5 0.7 ± 0.5
Patient table (S2–S3) 8.7 ± 1.2 − 0.7 ± 1.4 − 4.3 ± 1.3
In vivo 4.1 ± 0.9