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Predictors of diagnostic success in image-guided pediatric soft-tissue biopsies

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Abstract

Background

Image-guided percutaneous core needle biopsy (PCNB) of soft-tissue lesions is a minimally invasive technique that can provide a definitive diagnosis for treatment. Anatomical and age considerations in children require judicious use of safe percutaneous biopsy techniques. There are, however, limited data on the determinants of diagnostic yield in soft-tissue lesions in this population.

Objectives

To assess lesion-related and technical factors that affect diagnostic yield and safety in PCNB of pediatric soft-tissue lesions.

Materials and methods

This was a retrospective cohort study of 205 PCNB performed from January 2000 to July 2014. Diagnostic yield and its associations with technical and lesion-related factors were evaluated using bivariate analysis.

Results

The mean patient age was 11.1 ± 6.9 years (interquartile range [IQR]: 4.3-16 years). Ultrasound guidance alone was used in 91% of cases. The mean number of passes was 7.5 ± 3.2 (IQR: 5–9 passes) per case. The overall diagnostic yield was 75% and the overall accuracy was 88%. Performing fewer than four passes was associated with a nondiagnostic biopsy (P = 0.001). There were no lesion or other technical factors that predicted a diagnostic biopsy. There were two complications (1%) over 14 years.

Conclusion

Image-guided PCNB is a safe and effective means for the diagnosis of pediatric soft-tissue abnormalities. Aside from performing at least four passes, our data show no technical or lesion-related factors that increase diagnostic yield in pediatric PCNB of soft-tissue lesions.

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Acknowledgments

We thank Andrew Courtwright, MD, PhD, for statistical assistance and manuscript review.

Conflicts of interest

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Authors and Affiliations

  1. Beth Israel Deaconess Medical Center and Boston Children’s Hospital, Harvard Medical School, 330 Brookline Ave., Boston, MA, 02215, USA

    Michael Acord

  2. Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA

    Raja Shaikh

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  1. Michael Acord
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  2. Raja Shaikh
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Correspondence to Michael Acord.

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Acord, M., Shaikh, R. Predictors of diagnostic success in image-guided pediatric soft-tissue biopsies. Pediatr Radiol 45, 1529–1534 (2015). https://doi.org/10.1007/s00247-015-3364-2

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  • DOI: https://doi.org/10.1007/s00247-015-3364-2

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