Clinical Application Of Ultrsonography In Peripheral Thoracic Cavity Tumor

Objective:To investigate the diagnostic value of ultrasound and ultrasound-guided 18G cutting needle biopsy in peripheral thoracic cavity tumor.METHODS:Seventy eight cases with peripheral thoracic cavity tumor were detected by Two-Dimensional(2D)and color Doppler ultrasonography,computered tomography(CT),and the ultrasound-guided 18G cutting needle biopsy were successfully performed in all the cases.All the cases were divided into low echo-level group,high level-echo group,mixing-echo group,heterogeneous echo group and consolidation of lung group according to the 2D ultrasonography results.The cases were divided into no signal group,a litte signal group,abundance signal group and the nomal blood flow of lungs group according to theirs Color Doppler Flow Imaging(CDFI).The cases were divided into benign lesion group,malignant lesion group and others group according to the histopathologic results from Ultrasound-guided needle biopsy.Contrast to analyze the feature of 2-DE ultrasonography and doppler flow imaging of the three lesions.Seventy eight cases were divided into diagnosis determined group and diagnosis undetermined group according to the rusults of CT and ultrasound-guided 18G cutting needle biopsy.Contrast to analyze the diagnosis radio of CT and ultrasound-guided 18G cutting needle biopsy.RESULTS:51 cases appeared as low echo-level,8 cases as high-level echo,11 cases as mixing echo,6 cases as heterogeneous echo and 2 cases consolidation of lung in 2D ultrasonogray.The color Doppler ultrasonography displayed no signal in 24 cases,a litte signal in 34 cases,abundance signal in 18 cases and the nomal blood flow of lungs in 2 cases.The results of CT displayed malignant tumor 39 cases,benign tumor 3 cases,tuberculosis 5 cases,pneumonia 4,lung abscess 3 cases,diagnosis undetermined 24 cases,14 cases accompany to adjacent or distant place aversion.The correct diagnosis rate was 69.23%.The results of ultrasound-guided displayed benign tumor 47 cases, malignant tumor 7 cases,tuberculosis 13 cases,pneumonia 4 cases,lung abscess 3 cases,and diagnosis undetermined 4cases.The correct histological diagnosis rate was 94.8%.The lesions sampled included 13 pulmonary tuberculosis,16 pulmonary squamous cell carcinoma,13 pulmonary adenocarcinoma,4 pulmonary alveolarcell carcinoma,3 thymoma,1 malignant thymoma,5 malignant pleuralendotheliomas,3 pulmonary granuloma pyogenicum,1 pulmonary Neurilemmoma,1 pleural Neurilemmoma,1 nervus pulmonalis endocrine carcinoma,1 mediastinal well-differentiated angiosarcoma,4 inflammatory pseudotumor,1 interstitial pneumonia,1 lobar pneumonia,2 mediastinal lymphoma,1 pulmonary metastasis,1 leiomyosarcoma of lung,1 organized pneumonia,1 pulmonary hemorrhagic fibrinous inflammation.The statistical results indicated,compared to benign lesion,malignant lesion and others lesion,the display of two-dimensional(2-DE)ultrasonogray had not statistically significant difference(P＞0.05).Color Doppler flow imaging had statistically significant difference(P＜0.001).The diagnosis radio of CT and ultrasound-guided needle biopsy had significant difference in diagnosis peripheral thoracic cavity tumor,it had statistically significant difference(P＜0.001),ultrasound-guided needle biopsy exceeded CT obviously.ConclusionS:Ultrasound has high detection radio when is appled in pulmonary disease,ultrasound-guided needle biopsy has its distinct dominance when was used in unkown qualitative peripheral thoracic cavity tumor. Ultrasound-guided needle biopsy can win the specific histopathologic diagnosis,raise the diagnosis radio and it can help guide clinical treatment.