Application of cone-beam CT combined with iGuide system in percutaneous transthoracic needle biopsy of pulmonary lesions
10.13929/j.1672-8475.201709037
- VernacularTitle:锥形束CT联合iGuide引导系统在经皮经胸肺穿刺活检术中的应用
- Author:
Bihui CAO
1
;
Deji CHEN
;
Baoxia LIANG
;
Hui LIAN
;
Zhenfeng ZHANG
;
Yanhong YANG
;
Yunfei FENG
Author Information
1. 广州医科大学附属第二医院放射科
- Keywords:
Lung diseases;
Biopsy;
Cone-beam computed tomography;
Radiation dosage
- From:
Chinese Journal of Interventional Imaging and Therapy
2018;15(4):213-216
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the clinical value of cone-beam computed tomography (CBCT) combined with iGuide system in percutaneous transthoracic needle biopsy (PTNB) of pulmonary lesions.Methods A total of 30 patients with solitary lung lesion underwent PTNB procedures were enrolled.The needle path was planned with iGuide system and 3D CT-like MPR images after CBCT.A coaxial system with 18-gauge cutting needle was used for biopsy.Procedure related data,complications and radiation exposure of patients were recorded.Results Among 30 patients,malignant lesions were found in 24,and benign lesions were in 6 patients.On PTNB,28 patients were correctly diagnosed,1 case was with insufficient samples but obtained correct pathologic result with second biopsy,1 case was false-negative finding.The diagnostic accuracy,sensitivity,specificity,positive predictive value and negative predictive value of PTNB in diagnosis of lung diseases was 96.67％ (29/30),96.00％ (24/25),100％ (5/5),100％ (24/24) and 83.33％ (5/6),respectively.The mean procedure time was (13.03+3.61)min,and exposure dose was (7.95+4.57)mSv.After PTNB procedures,pneumothorax and hemoptysis occurred in 6 (6/30,20.00％) and 3 (3/30,10.00％) patients,respectively.Conclusion CBCT combined with iGuide system for guiding PTNB is accurate and safe with reasonable radiation exposure.
