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Shape-Sensing Robotic-Assisted Bronchoscopy with Concurrent use of Radial Endobronchial Ultrasound and Cone Beam Computed Tomography in the Evaluation of Pulmonary Lesions

  • INTERVENTIONAL PULMONOLOGY
  • Published:
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Abstract

Purpose

Lung nodules are a common radiographic finding. Non-surgical biopsy is recommended in patients with moderate or high pretest probability for malignancy. Shape-sensing robotic-assisted bronchoscopy (ssRAB) combined with radial endobronchial ultrasound (r-EBUS) and cone beam computed tomography (CBCT) is a new approach to sample pulmonary lesions. Limited data are available regarding the diagnostic accuracy of combined ssRAB with r-EBUS and CBCT.

Methods

We conducted a retrospective analysis of the first 200 biopsy procedures of 209 lung lesions using ssRAB, r-EBUS, and CBCT at UT Southwestern Medical Center in Dallas, Texas. Outcomes were based on pathology interpretations of samples taken during ssRAB, clinical and radiographic follow-up, and/or additional sampling.

Results

The mean largest lesion dimension was 22.6 ± 13.3 mm with a median of 19 mm (range 7 to 73 mm). The prevalence of malignancy in our data was 64.1%. The diagnostic accuracy of ssRAB combined with advanced imaging was 91.4% (CI 86.7–94.8%). Sensitivity was 87.3% (CI 80.5–92.4%) with a specificity of 98.7% (CI 92.8–100%). The negative and positive predictive values were 81.3% and 99.2%. The rate of non-diagnostic sampling was 11% (23/209 samples). The only complication was pneumothorax in 1% (2/200 procedures), with 0.5% requiring a chest tube.

Conclusion

Our results of the combined use of ssRAB with r-EBUS and CBCT to sample pulmonary lesions suggest a high diagnostic accuracy for malignant lesions with reasonably high sensitivity and negative predictive values. The procedure is safe with a low rate of complications.

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Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors and Affiliations

  1. Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, 75390, USA

    Kim Styrvoky, Audra Schwalk, David Pham, Hsienchang T. Chiu, Anastasiia Rudkovskaia & Muhanned Abu-Hijleh

  2. Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA

    Kristine Madsen

  3. Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center, Dallas, TX, USA

    Stephen Carrio

  4. Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA

    Elizabeth M. Kurian & Luis De Las Casas

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  1. Kim Styrvoky
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  2. Audra Schwalk
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Contributions

KS, M.D., AS, M.D., and MAH, M.D. contributed to procedures, data collection, analysis, literature review, preparation of the manuscript, and review of the manuscript. DP, M.D., and KM, M.D. contributed to data collection and review of the manuscript. HTC, M.D., AR, M.D., and SC, DNP, CRNA contributed to procedures and review of the manuscript. EK, M.D., and LDLC, M.D. contributed to pathology portion of the procedures and review of the manuscript.

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Correspondence to Kim Styrvoky.

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Styrvoky, K., Schwalk, A., Pham, D. et al. Shape-Sensing Robotic-Assisted Bronchoscopy with Concurrent use of Radial Endobronchial Ultrasound and Cone Beam Computed Tomography in the Evaluation of Pulmonary Lesions. Lung 200, 755–761 (2022). https://doi.org/10.1007/s00408-022-00590-7

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