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Quality assurance in endobronchial ultrasound
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  1. Mark G Slade,
  2. Gerry C Slade
  1. Department of Thoracic Oncology, Papworth Hospital NHS Foundation Trust, Papworth Everard, Cambridge, UK
  1. Correspondence to M G Slade, Department of Thoracic Oncology, Papworth Hospital NHS Foundation Trust, Papworth Everard, Cambridge CB23 3RE, UK; mark.slade{at}nhs.net

https://doi.org/10.1136/thx.2010.145284

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    In their study of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA), Kemp and colleagues report variation in the learning curves for five operators, studied by using the cumulative sum (cusum) technique,1 with which we have some experience.2 The authors speculate on whether variations in lymph node size, prevalence of underlying diagnoses or rate of accrual of cases may explain these differences. We believe there may be other important influences. Successful …

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      S V Kemp P L Shah
      Thorax 2010; 66 354-354 Published Online First: 23 Sep 2010. doi: 10.1136/thx.2010.147983