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European Radiology

, Volume 23, Issue 11, pp 3071–3076 | Cite as

Percutaneous lung biopsies: performance of an optical CT-based navigation system with a low-dose protocol

  • Rosario Francesco Grasso
  • Roberto Luigi CazzatoEmail author
  • Giacomo Luppi
  • Francesco D’Agostino
  • Emiliano Schena
  • Riccardo Del Vescovo
  • Francesco Giurazza
  • Eliodoro Faiella
  • Bruno Beomonte Zobel
Interventional

Abstract

Objectives

To compare patients’ radiation exposure, technical feasibility, imaging quality and complication rate of percutaneous lung biopsies (PLBs) performed with a low-dose (LD) CT protocol under guidance of an optical navigation system.

Methods

Fifty-two consecutive patients with suspected malignant lung lesions were enrolled and randomised into group 1 (PLBs under the guidance of the navigation system) and group 2 (PLBs under the guidance navigation system with an LD protocol). Patients’ demographics, lesion features, procedure-related variables and CT image quality for group 2 were recorded and compared.

Results

Technical success was 100 % in both groups. The radiation dose to patients’ chest was significantly lower in group 2 than in group 1 (group 1: mean TDLP 206 ± 59 mGy·cm, ~ 3.5 ± 1.0 mSv; group 2: 54.2 ± 46.2 mGy·cm, ~ 0.92 ± 0.78 mSv; P < 0.0001). The PNX rate was 12 % in group 1 and 11.1 % in group 2. The haemoptysis rate was 8.0 % in group 1 and 3.7 % in group 2. CT image quality obtained in group 2 was always rated as adequate and as excellent in 15 cases (56.0 %).

Conclusions

An optical navigation system with LD CT protocol is useful for performing lung biopsies with decreased patient radiation exposure.

Key Points

• Navigation systems are useful tools in percutaneous imaging-guided procedures.

• For lung biopsies, low-dose (LD) CT protocols may be used.

• Combining LD protocols with optical CT navigation results in significantly reduced radiation exposure.

Keywords

Pulmonary nodules Percutaneous lung biopsy Computed tomography (CT) Radiation dose Navigation system 

Abbreviations

PLBs

Percutaneous lung biopsies

LD

Low dose

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Copyright information

© European Society of Radiology 2013

Authors and Affiliations

  • Rosario Francesco Grasso
    • 1
  • Roberto Luigi Cazzato
    • 1
    Email author
  • Giacomo Luppi
    • 1
  • Francesco D’Agostino
    • 1
  • Emiliano Schena
    • 2
  • Riccardo Del Vescovo
    • 1
  • Francesco Giurazza
    • 1
  • Eliodoro Faiella
    • 1
  • Bruno Beomonte Zobel
    • 1
  1. 1.Department of RadiologyUniversity Campus Bio-Medico of RomeRomeItaly
  2. 2.Unit of Measurements and Biomedical Instrumentations Biomedical Engineering LaboratoryUniversity Campus Bio-Medico of RomeRomeItaly

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