Feasability of human endobronchial imaging with a linear-array ultrasound catheter

Purpose. To explore the feasability of imaging lung masses with a novel endobronchial linear‐array transducer. Method. We used a linear‐array transducer of 7 F (2.3 mm in diameter) operating at a center frequency of 10 MHz for endobronchial imaging. We used the probe in 20 subjects with suspected lu...

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Published inJournal of clinical ultrasound Vol. 36; no. 8; pp. 457 - 461
Main Authors Tranquart, François, Palanchon, Peggy, Cladé, Odile, Bleuzen, Aurore, Dinet, Dominique, Magro, Pascal, Diot, Patrice
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.10.2008
Subjects
Biopsy, Needle
bronchi
endoscopic imaging
Equipment Design
Feasibility Studies
Humans
Lung Neoplasms - diagnostic imaging
lymph nodes
transbronchial needle aspiration
Transducers
ultrasonography
Ultrasonography - instrumentation
Ultrasonography, Interventional - instrumentation
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Summary:Purpose. To explore the feasability of imaging lung masses with a novel endobronchial linear‐array transducer. Method. We used a linear‐array transducer of 7 F (2.3 mm in diameter) operating at a center frequency of 10 MHz for endobronchial imaging. We used the probe in 20 subjects with suspected lung cancer to identify and measure the tumor; to asses the tumor's sonographic characteristics, bronchial wall invasion, and presence of lymph nodes; to guide a transbronchial needle aspiration (TBNA); and to evaluate potential side effects. Results. In all patients, the tumor was identified and the relationship with the bronchial wall correctly evaluated through the depiction of a 3‐layer wall pattern. Bronchial wall invasion was suspected in 5 patients, small adjacent lymph nodes were detected in 3 patients, and a small pleural effusion was observed close to the lung lesion in 2 patients. The linear‐array probe allowed the guidance of successful TBNA with no complications. Conclusion. This feasibility study shows that the prototype probe can be used to depict pulmonary lesions and to guide biopsy nodes. Larger series are needed to validate its usefulness in clinical work‐ups and patients management. © 2008 Wiley Periodicals, Inc. J Clin Ultrasound, 2008
Bibliography:French Ministère de la Jeunesse, de l'Education et de l'Industrie - No. ENDO project N°02 B 0669
ArticleID:JCU20512
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:0091-2751
1097-0096
1097-0096
DOI:10.1002/jcu.20512