Echoic features as predictors of diagnostic yield of endobronchial ultrasound-guided transbronchial lung biopsy in peripheral pulmonary lesions. 2011

Chih-Hsi Kuo, and Shu-Min Lin, and Fu-Tsai Chung, and Kang-Yun Lee, and Yung-Lun Ni, and Yu-Lun Lo, and Hao-Cheng Chen, and Han-Pin Kuo
Department of Thoracic Medicine, Chang Gung Memorial Hospital, Chang Gung University, School of Medicine, Taipei, Taiwan.

The endobronchial ultrasound (EBUS) features of peripheral pulmonary lesions (PPLs) are associated with histopathologic presentation. Certain histologic and radiologic characteristics of peripheral pulmonary lesions affect the diagnostic yield of transbronchial lung biopsies (TBLB). This study aimed to assess the feasibility of EBUS echoic features as predictors of diagnostic yield of TBLB. Four hundred and eight patients with PPLs underwent TBLB. The yields of TBLB in lesions with characteristic EBUS features were compared with those without such features. The overall diagnostic yield of TBLB was 64.2%. Lesion diameter (≥3 cm vs. <3 cm; 69.1% vs. 58.5%, p < 0.05), location of the EBUS probe (within vs. adjacent to lesions; 73.2% vs. 46.3%, p < 0.01) and lesion echogenicity (heterogeneous vs. homogeneous; 76.7% vs. 52.0%, p < 0.01) were associated with higher TBLB yields. In malignant PPLs, the echoic features associated with higher TBLB yields were lesion diameter (≥3 cm vs. <3 cm; 74.4% vs. 62.5%, p < 0.05), location of the EBUS probe (within vs. adjacent to lesions; 78.7% vs. 47.4%, p < 0.01), echoic feature of the margin (noncontinuous vs. continuous; 77.0% vs. 62.4%, p < 0.01) and lesion echogenicity (heterogeneous vs. homogeneous; 77.7% vs. 53.9%, p < 0.01). EBUS probe location, echoic feature of the margin and lesion echogenicity were independent predictors according to the results of multivariate analysis. In conclusion, EBUS features are feasible predictors of diagnostic yield of TBLB in peripheral lung lesions.

UI MeSH Term Description Entries
D008171 Lung Diseases Pathological processes involving any part of the LUNG. Pulmonary Diseases,Disease, Pulmonary,Diseases, Pulmonary,Pulmonary Disease,Disease, Lung,Diseases, Lung,Lung Disease
D008175 Lung Neoplasms Tumors or cancer of the LUNG. Cancer of Lung,Lung Cancer,Pulmonary Cancer,Pulmonary Neoplasms,Cancer of the Lung,Neoplasms, Lung,Neoplasms, Pulmonary,Cancer, Lung,Cancer, Pulmonary,Cancers, Lung,Cancers, Pulmonary,Lung Cancers,Lung Neoplasm,Neoplasm, Lung,Neoplasm, Pulmonary,Pulmonary Cancers,Pulmonary Neoplasm
D008297 Male Males
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D001999 Bronchoscopy Endoscopic examination, therapy or surgery of the bronchi. Bronchoscopic Surgical Procedures,Surgical Procedures, Bronchoscopic,Bronchoscopic Surgery,Surgery, Bronchoscopic,Bronchoscopic Surgeries,Bronchoscopic Surgical Procedure,Bronchoscopies,Surgeries, Bronchoscopic,Surgical Procedure, Bronchoscopic
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies

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