Objective To evaluate the diagnostic yield and safety of two biopsy methods, electromagnetic navigational bronchoscopy (ENB) and transthoracic needle biopsy (TTNB), in peripheral pulmonary lesions. To select a low-risk and high-benefit biopsy method based on the clinical characteristics of the lesions and patients. Methods A retrospective analysis was conducted on inpatients who underwent ENB and/or TTNB for peripheral pulmonary lesions in Huadong Hospital Affiliated to Fudan University. Propensity score matching was used to compare the diagnostic yield and safety of the two biopsy methods. Results A total of 126 patients were included in the ENB group, and 104 patients in the TTNB group. After propensity score matching, 83 matched pairs were obtained. The TTNB group exhibited a significantly higher diagnostic yield compared with the ENB group (90.4% vs. 48.2%, P<0.001), but it was also associated with a higher incidence of pneumothorax (1.2% vs. 21.7%, P<0.001). In the ENB group, the diagnostic efficacy was correlated with lesion diameter (P<0.001, OR=0.183, 95%CI 0.071 - 0.470), but there was no statistically significant difference in the diagnostic yield among different lung segments (P>0.05). In the TTNB group, lesion characteristics did not significantly affect the diagnostic yield, but a lesion diameter ≤30 mm (P=0.019, OR=5.359, 95%CI 1.320 - 21.753) and a distance from the pleura ≥20mm (P=0.030, OR=6.399, 95%CI 1.192 - 34.360) increased the risk of pneumothorax. When stratified based on lesion and patient blood characteristics, no significant difference was found in the diagnostic yield between the two groups for characteristics such as left upper lobe (P=0.195), right middle lobe (P=0.333), solid with cavity (P=0.567), or abnormal serum white blood cell count (P=0.077). However, the incidence of pneumothorax in the TTNB group was higher than that in the ENB group. Conclusions The diagnostic yield of ENB is affected by the size of the lesion, while the incidence of pneumothorax in TTNB is influenced by both lesion size and distance from the pleura. In cases with lesions located in the left upper lobe, right middle lobe, solid with cavity, or with abnormal serum white blood cell count, selecting ENB for biopsy is considered preferable to TTNB.
Objective To evaluate the complication rate of CT-guided percutaneous lung biopsy and determine the risk factors. Methods A retrospective investigation of patients with CT-guided percutaneous lung biopsy in Ruijin Hospital, Shanghai Jiao Tong University School of Medicine between2002 and 2009 was performed. The risk factors for complications were determined by multivariate analysis of variables related to patients’demographics, lung lesions, biopsy procedures, and individual radiological features. Results 281 biopsy procedures were enrolled. The total complication rate was 55. 9% with pneumothorax 32. 4% ( 91/281) , hemoptysis 34. 5% ( 97 /281) , and cutaneous emphysema2. 1% ( 6 /281) , and with no mortality.The pneumothorax rate was correlated with lesion location, lesion depth, and number of pleural passes. The bleeding risk was correlated with lesion size, lesion depth, and age. Prediction models for pneumothorax and bleeding were deduced by logistic regression. The pneumothorax model had a sensitivity of 80. 0% and a specificity of 62. 4% . And the bleeding model had a sensitivity of 67. 4% and a specificity of 88. 8% .Conclusions Lesion location, lesion depth, and number of pleural passes were independent risk factors for pneumothorax. Lesion size, lesion depth, and age were independent risk factors for bleeding. The prediction models for pneumothorax and bleeding will helpfully reduce the complication of CT-guided lung biopsy.
Objective
To investigate the clinical value and complication factors of percutaneous transthoracic needle biopsy (PTNB) guided by multislice computed tomography (MSCT).
Methods
From January 2013 to December 2016, 179 patients treated with MSCT-guided lung biopsy in the Affiliated Hospital of North Sichuan Medical College and Dianjiang People’s Hospital were reviewed. Occurrence rate and the influencing factors of complications were analyzed. Meanwhile, biopsy findings and diagnostic accuracy rate were summarized.
Results
A total of 129 cases of lung cancer were detected under MSCT-guided percutaneous biopsy in 179 patients with a diagnostic accuracy of 93.30%. The correct rate of malignant tumor diagnosis was 92.14%. The main complications were pneumothorax, pulmonary hemorrhage, dyspnea and hemoptysis. Major risk factors of MSCT-guided PTNB complications included lesion size ≤ 2 cm, the shortest distance to the diaphragm ≤ 5 cm, puncture depth > 5 cm, pleural puncture angle > 50°, the puncture times ≥ 2, puncture time ≥ 20 minutes, age of patients > 60 years, and existence of pulmonary disease (P<0.05).
Conclusions
The clinical application value of MSCT-guided PTNB is high. Skilled puncture technique and appropriate puncture procedure are helpful to reduce complications.
Peripheral pulmonary lesions (PPLs) are generally considered as lesions in the peripheral one-third of the lung. A computed tompgraphy (CT) guided transthoracic needle aspiration/biopsy or transbronchial approach using a bronchoscope has been the most generally accepted methods. Navigation technique can effectively improve the diagnosis rate of peripheral pulmonary lesions, reduce the incidence of complications, shorten the time of diagnosis, and make the patients get timely and effective treatment.
Percutaneous pulmonary puncture guided by computed tomography (CT) is one of the most effective tools for obtaining lung tissue and diagnosing lung cancer. Path planning is an important procedure to avoid puncture complications and reduce patient pain and puncture mortality. In this work, a path planning method for lung puncture is proposed based on multi-level constraints. A digital model of the chest is firstly established using patient's CT image. A Fibonacci lattice sampling is secondly conducted on an ideal sphere centered on the tumor lesion in order to obtain a set of candidate paths. Finally, by considering clinical puncture guidelines, an optimal path can be obtained by a proposed multi-level constraint strategy, which is combined with oriented bounding box tree (OBBTree) algorithm and Pareto optimization algorithm. Results of simulation experiments demonstrated the effectiveness of the proposed method, which has good performance for avoiding physical and physiological barriers. Hence, the method could be used as an aid for physicians to select the puncture path.
Objective
To investigate the effect of CT-guided percutaneous lung puncture biopsy and nursing of postoperative complications.
Methods
We retrospectively analyzed the clinical data of 522 patients who underwent CT-guided percutaneous lung biopsy between May and August 2014 in the Department of Lung Cancer Center. Effect of the puncture biopsy, postoperative complications and nursing measures were summarized.
Results
After surgery, 507 cases of diagnosis were confirmed, 10 were not confirmed, and 5 cases of puncture were unsuccessful. There were 203 cases of complications, including 122 cases of pneumothorax (23.4%), 56 of hemoptysis 56 (10.7%), 20 of pleural effusion (3.8%), 4 of pleural reaction (0.8%), and 1 of mediastinal emphysema (0.2%). All the above complications were cured after positive symptomatic treatment and nursing care. There were no such complications as severe hemopneumothorax, severe hemoptysis or needle tract metastasis.
Conclusions
CT-guided percutaneous lung puncture biopsy is a safe and reliable method, but there are some patients with complications. Observation and postoperative care are particularly important. Timely detection and positive care will achieve satisfactory results.
ObjectiveTo evaluate the diagnostic value of computer tomography (CT)-guided percutaneous lung biopsy and tissue culture in pulmonary diseases.
MethodsAfter the preoperative evaluation, 48 patients underwent CT-guided percutaneous lung biopsy were analyzed, and 16 patients accepted tissue culture. The clinical significance of combined diagnostic rate of histopathology and tissue culture was investigated.
ResultsAll patients were punctured successfully. The pathological diagnosis confirmed 26 (54.2%) cases with malignant lesions and 16 (33.3%) cases with benign lesions. Six cases could not be pathological diagnosed. The pathological diagnostic rate was 87.5%. Sixteen patients accepted tissue culture. Among them 3 cases with benign lesions were cultured. The positive rate of tissue culture was 18.8%, and improved to 30.0% in the patients with benign lesion. The combined diagnostic rate of histopathology and tissue culture was 89.6%. In addition, the accuracy rate of pathological diagnosis in the group of lung nodules was 95.0%, higher than the others. The accuracy rate of pathological diagnosis in lung nodules of 2cm~3cm in diameter was 100.0%, and the positive rate of tissue culture in lung lump of 3cm~5cm in diameter was 25.0%. The incidence of pneumothorax and hemorrhage was 14.6%.
ConclusionsCT-guided percutaneous lung biopsy is a safe and effective diagnostic method. For pulmonary infectious diseases, combination of CT-guided percutaneous lung biopsy and tissue culture can improve the early diagnostic rate.
