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Computed tomography-guided lung biopsy: Association between biopsy needle angle and pneumothorax development
Takumi Kuriyama1, Katsuhiro Masago2, Yuki Okada3
1Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya 461-8673, Japan.
Molecular and Clinical Oncology
|February 14, 2018
Summary
Computed tomography (CT)-guided lung biopsy is a common procedure, but can cause pneumothorax. This study found that needle angle is a key factor in reducing pneumothorax risk during CT-guided lung biopsies.
Area of Science:
- Pulmonology
- Radiology
- Medical Procedures
Background:
- Computed tomography (CT)-guided lung biopsy is a standard diagnostic tool for lung lesions.
- Pneumothorax is a frequent complication, occurring in approximately 49.2% of procedures in this study.
- Understanding risk factors is crucial for improving patient safety and procedure success.
Purpose of the Study:
- To investigate the association between biopsy needle angle and the incidence of pneumothorax during CT-guided lung biopsies.
- To identify physical risk factors contributing to pneumothorax development.
- To evaluate the impact of needle angle on procedure discontinuation rates.
Main Methods:
- Retrospective analysis of 325 CT-guided lung biopsy cases.
- Evaluation of biopsy needle angle and patient positioning as risk factors.
- Analysis of pneumothorax incidence, severity, and procedure discontinuation rates.
Main Results:
- Pneumothorax occurred in 49.2% of procedures; 11.2% led to discontinuation.
- Lower lobe biopsies had a higher discontinuation rate (8.1%) compared to upper (2.5%) and middle (0.6%) lobes.
- A needle angle <90° was associated with a 40.0% pneumothorax rate, while 40.3% experienced no pneumothorax.
Conclusions:
- Biopsy needle angle is a significant factor influencing pneumothorax development in CT-guided lung biopsies.
- Optimizing needle angle and patient positioning may help reduce complication rates.
- CT-guided lung biopsy remains a valuable, relatively safe procedure when performed with proper technique, including breath-holding.
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