Endobronchial ultrasound

Burgers, J. A.; Becker, Heinrich D.

doi:10.1016/s0169-5002(01)00349-x

Cited by 23 publications

(15 citation statements)

References 10 publications

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“…The size of each peripheral lung lesion was measured from the CT images, based on the mean diameter of the lesion on the axial lung window setting. A peripheral lung lesion was diagnosed when the location of the lesion was beyond the segmental bronchus [ 10 ]. The lesion was classified as ground-glass opacity, part-solid, or solid according to a visual assessment method based on CT attenuation and modified from a previous study [ 11 ].…”

Section: Methodsmentioning

confidence: 99%

Radial probe endobronchial ultrasound using a guide sheath for peripheral lung lesions in beginners

et al. 2018

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BackgroundThe diagnostic yields and safety profiles of transbronchial lung biopsy have not been evaluated in inexperienced physicians using the combined modality of radial probe endobronchial ultrasound and a guide sheath (EBUS-GS). This study assessed the utility and safety of EBUS-GS during the learning phase by referring to a database of performed EBUS-GS procedures.MethodsFrom December 2015 to January 2017, all of the consecutive patients who underwent EBUS-GS were registered. During the study period, two physicians with no previous experience performed the procedure. To assess the diagnostic yields, learning curve, and safety profile of EBUS-GS performed by these inexperienced physicians, the first 100 consecutive EBUS-GS procedures were included in the evaluation.ResultsThe overall diagnostic yield of EBUS-GS performed by two physicans in 200 patients with a peripheral lung lesion was 73.0%. Learning curve analyses showed that the diagnostic yields were stable, even when the procedure was performed by beginners. Complications related to EBUS-GS occurred in three patients (1.5%): pneumothorax developed in two patients (1%) and resolved spontaneously without chest tube drainage; another patient (0.5%) developed a pulmonary infection after EBUS-GS. There were no cases of pneumothorax requiring chest tube drainage, severe hemorrhage, respiratory failure, premature termination of the procedure, or procedure-related mortality.ConclusionsEBUS-GS is a safe and stable procedure with an acceptable diagnostic yield, even when performed by physicians with no previous experience.Electronic supplementary materialThe online version of this article (10.1186/s12890-018-0704-7) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

Radial probe endobronchial ultrasound using a guide sheath for peripheral lung lesions in beginners

et al. 2018

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“…The endobronchial application of ultrasound (EBUS), using a miniature probe introduced via a fibreoptic bronchoscope biopsy channel, was first described in 1992 [1] and has been commercially available since 1999 [2]. Its current, primary clinical use is in the assessment of tumour/lymph node invasion in cases of nonsmall cell lung cancer [2][3][4].…”

mentioning

confidence: 99%

“…Its current, primary clinical use is in the assessment of tumour/lymph node invasion in cases of nonsmall cell lung cancer [2][3][4]. The technique is safe and well tolerated [1,5].…”

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confidence: 99%

Endobronchial ultrasound to assess airway wall thickening: validationin vitroandin vivo

Shaw

Wakely²,

Peebles³

et al. 2004

Eur Respir J

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Endobronchial ultrasound (EBUS) allows identification of airway wall structures and could potentially be utilised for in vivo studies of airway thickening in asthma. The present study investigated whether inflation of the fluid-filled balloon sheath over the transducer (necessary to provide sonic coupling with the airway wall) influenced in vitro measurements. In vivo comparability of EBUS with high resolution computed tomography scanning (HRCT), an established method for measuring wall thickness, was determined in control subjects.The airway diameter and wall thickness were studied using EBUS in 24 cartilaginous airways obtained from four sheep, before and after balloon sheath inflation during immersion in saline. To assess EBUS versus HRCT comparability of airway measures in vivo, 12 control subjects underwent imaging of the posterior basal bronchus of the right lower lobe by both techniques. Intra-and interobserver agreement were also assessed.Results with and without the balloon sheath gave comparable measures of airway internal diameter and wall thickness in vitro. Statistical analysis showed agreement between EBUS and HRCT, and intra-and interobserver variability in vivo.The current study concludes that endobronchial ultrasound, which does not present a radiation risk, could be utilised in the in vivo study of cartilaginous airway wall remodelling in respiratory diseases, such as asthma.

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“…Diese Einschätzung wird durch die Daten [3] und das praktische Vorgehen anderer Autoren bestätigt. Für endobronchialen Ultraschall (EBUS) werden zur korrekten Ankoppelung Ballons bençtigt [4,5].…”

Section: Wie Erfolgt Die Beste Sonografische Koppelung An Die Wand: Wunclassified

EUS mit Minisonden

Seifert¹,

Schutte²

2008

Z Gastroenterol

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With the advent of flexible, high-frequency catheter probes that can be introduced through the working channel of any endoscope, EUS became available as an additional and very powerful diagnostic tool during routine endoscopic procedures. Miniprobes as a supplement to echoendoscopes with radial or longitudinal scanners provide detailed images with a penetration depth of about 20 mm using frequencies of around 20 MHz. Not only structures of the intestinal wall but also a considerable volume of the surrounding organs can be visualised. In the intestine sonographic coupling is best accomplished using bare miniprobes with water filling of the lumen. Out of 1007 miniprobe examinations carried out in the author's clinic, the most frequent indications involved the distal bile and pancreatic ducts (36 %), carcinoma of the oesophagus or the cardia (18 %), submucosal tumours and GIST (14 %), and others (32 %). For evaluating the distal common bile duct, extraductal EUS (EDUS) allows the visualisation of small pathological lesions, especially intraductal stones without ductal dilatation with a sensitivity of 97 % and a specificity of 98 %. For the staging of early cancers, miniprobe EUS has its significance mainly in showing a preserved submucosal layer, thereby excluding an endoscopically non-resectable T 2 lesion, as was successfully done in all of our cases. Suspicious prominent structures were easily assigned to the correct layer of the wall or identified as external impressions.

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Endobronchial ultrasound

Cited by 23 publications

References 10 publications

Radial probe endobronchial ultrasound using a guide sheath for peripheral lung lesions in beginners

Radial probe endobronchial ultrasound using a guide sheath for peripheral lung lesions in beginners

Endobronchial ultrasound to assess airway wall thickening: validationin vitroandin vivo

EUS mit Minisonden

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