RESUMEN
PURPOSE: To evaluate accurate diagnosis and complication rates of percutaneous core needle biopsy (PCNB) with an automated gun for small lung nodules that are 10 mm or less in diameter. MATERIALS AND METHODS: Forty-two cases of small lung nodules with diameters ≤ 10 mm (mean diameter, 9 mm) that received a PCNB were included in this study. Imaging guidance was fluoroscopy in 30 cases and computed tomography (CT) in 12 cases. RESULTS: Accurate diagnosis was achieved with the initial PCNB in 88.1% (37/42) of cases. Accurate diagnosis rates were 86.7% (26/30) with fluoroscopic guidance and 91.7% (11/12) with CT guidance (P > 0.05). The complication rate of PCNB was 7.1% (3/42), including hemoptysis (n=2) and pneumothorax (n=1). The complication rate was 6.7% (2/30) with fluoroscopic guidance and 8.3% (1/12) with CT guidance (P > 0.05). CONCLUSION PCNB: with an automated gun is useful for the pathologically conclusive diagnosis of small lung nodules (≤ 10 mm in diameter) using fluoroscopic or CT guidance.
Asunto(s)
Neoplasias Pulmonares/patología , Pulmón/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia con Aguja , Niño , Diagnóstico Diferencial , Femenino , Fluoroscopía/métodos , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Tomografía Computarizada por Rayos X/métodos , Adulto JovenRESUMEN
RATIONALE AND OBJECTIVES: A working model (WM) of a newly designed device for ultrasound-guided puncture was tested. MATERIALS AND METHODS: WM featured a wheel-shaped metallic guide that passively rotated within the plane of view as the operator tried to redirect the needle. Four operators performed US-guided intercostal puncture of 24 targets in phantoms using a commercially available preset needle guide (PG). 24 other targets were punctured using WM that we have made. The number of needle passage, procedure time, and the number of inadvertent rib touchings were compared between PG use and WM use. RESULTS: Performance of WM was comparable to that of PG except in one operator, where WM was associated with fewer needle passage (P = 0.0044) and less procedure time (P = 0.0233). CONCLUSIONS: It is believed that WM will make US-guided procedures both easier and more flexible. The performance of new device should be investigated by in vivo studies.
