10MHz ultrasound linear array catheter for endobronchial imaging

Clade, O.; Tranquart, F.; Olar, M.; Hazouard, E.; Dinet, D.

doi:10.1109/ultsym.2004.1418212

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…Orsini et al [15] have successfully used the AcuNav device for TEE as a way to minimize patient discomfort while Kew and Davies [16] report on the use of AcuNav catheter for visualization of the liver to guide hepato-portal vein punctures during transjugular intrahepatic portosystemic shunt (TIPS) procedures. Other researchers have investigated a side-viewing ultrasound cathether for endobronchial imaging [17] and the AcuNav catheter has shown promise for guiding renal stenting procedures as well as stent installation during abdominal aorta aneurism (AAA) repair procedures.…”

Section: A New Clinical Applications and Imaging Modalitiesmentioning

confidence: 99%

Advances in catheter-based ultrasound imaging Intracardiac Echocardiography and the ACUSON AcuNavTM Ultrasound Catheter

Proulx¹,

Tasker²,

Bartlett-Roberto³

IEEE Ultrasonics Symposium, 2005.

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Conventional transthoracic and transesophageal ultrasound imaging often cannot satisfy imaging requirements for many advanced catheter-based interventional cardiac procedures due to restricted access to the anatomy. Intracardiac echocardiography (ICE) can provide almost unrestricted access and has been shown to be very effective in accurately guiding interventional cardiac procedures by providing high quality visualization of intracardiac anatomy and intracardiac devices. ICE is steadily replacing transesophageal ultrasound as the preferred imaging tool for device guidance during atrial fibrillation treatment, valve repair and closure of atrial septal defects. This article provides a history of the ACUSON AcuNav™ Ultrasound Catheter, a discussion of key technologies employed and a review of the expanding range of clinical applications where ICE technology is utilized. We also discuss recent innovations in catheter-based ultrasound, such as threedimensional (3D) tools for navigation and volume rendering, new imaging modalities like acoustic radiation force imaging (ARFI) and emerging applications for catheter-based ultrasound in the field of minimally invasive surgery.

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Section: A New Clinical Applications and Imaging Modalitiesmentioning

confidence: 99%

Advances in catheter-based ultrasound imaging Intracardiac Echocardiography and the ACUSON AcuNavTM Ultrasound Catheter

Proulx¹,

Tasker²,

Bartlett-Roberto³

IEEE Ultrasonics Symposium, 2005.

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“…The piezoelectric is damped with a low impedance backing layer: Z= 1.5 MRayls. The matching layer exhibits an impedance gradient designed to optimize the matching between the piezocomposite and the propagating medium acoustic impedances [1].…”

Section: Amentioning

confidence: 99%

“…In our previous publication [1] we described acoustical design and first images obtained with a 10MHz ultrasound array included in a 7 French outer diameter catheter for endobronchial imaging. This article focuses on the construction and clinical evaluation of the probe.…”

Section: Introductionmentioning

confidence: 99%

Development and clinical evaluation of a 10MHz ultrasound linear array catheter for endobronchial imaging

Clade¹,

Tranquart²,

Palanchon³

et al.

IEEE Ultrasonics Symposium, 2005.

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Applying endoscopic ultrasound to image external part of bronchial tubes is of great interest and complementary with other imaging methods.In continuation with our previous work [1], this paper presents the design and acoustical testing of a catheter array for endobronchial imaging completed by results of the clinical study performed with this probe. The transducer is a 64 elements ultrasound array included in a 7 Fr (2.3 mm Outer Diameter) catheter in order to be used in an existing bronchofiberscope. The array has a 200 µm pitch, a 1.5 mm elevation, and operates at 10 MHz center frequency. The piezoelectric material is based on 1-3 piezo-composite technology and the front layer is selected to act both as a matching and barrier layer. The probe is interfaced to a commercial ultrasound system. It was used in 25 patients without any inconvenience for the patient (in terms of discomfort and time duration which is limited to 10 minutes at the maximum) or the clinicians (easy use, perfect visualization of the area of interest). The only limitation encountered concerns the presence of air bubbles on bronchial walls which could limit the visualization of structures. This allowed the characterization of chest tumors (hypoechoic tissue) with possible adjacent lymph nodes (minimal size of 3 mm) which were not described on CT-scan. This identified clearly some underlying vessels to be spared during biopsy. This helps in identifying some regions of tumours which appeared as vascularized to guide the site of biopsy. In conclusion this specific probe is of great value to better image bronchial structures, to depict extension of tumours as well as possible sentinel lymph nodes for a more complete initial diagnosis and guidance of biopsies. This will be used to improve diagnosis and safety of biopsy.

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Implantable imaging system for automated monitoring of internal organs

Basak

Bhunia

2015

Implantable Biomedical Microsystems

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10MHz ultrasound linear array catheter for endobronchial imaging

Cited by 4 publications

References 5 publications

Advances in catheter-based ultrasound imaging Intracardiac Echocardiography and the ACUSON AcuNavTM Ultrasound Catheter

Advances in catheter-based ultrasound imaging Intracardiac Echocardiography and the ACUSON AcuNavTM Ultrasound Catheter

Development and clinical evaluation of a 10MHz ultrasound linear array catheter for endobronchial imaging

Implantable imaging system for automated monitoring of internal organs

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