Document Detail


Real-time, 3-D ultrasound with multiple transducer arrays.
MedLine Citation:
PMID:  16471436     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Modifications were made to a commercial real-time, three-dimensional (3-D) ultrasound system for near simultaneous 3-D scanning with two matrix array transducers. As a first illustration, a transducer cable assembly was modified to incorporate two independent, 3-D intra-cardiac echo catheters, a 7 Fr (2.3 mm O.D.) side scanning catheter and a 14 Fr (4.7 mm O.D) forward viewing catheter with accessory port, each catheter using 85 channels operating at 5 MHz. For applications in treatment of atrial fibrillation, the goal is to place the sideviewing catheter within the coronary sinus to view the whole left atrium, including a pulmonary vein. Meanwhile, the forward-viewing catheter inserted within the left atrium is directed toward the ostium of a pulmonary vein for therapy using the integrated accessory port. Using preloaded, phasing data, the scanner switches between catheters automatically, at the push of a button, with a delay of about 1 second, so that the clinician can view the therapy catheter with the coronary sinus catheter and vice versa. Preliminary imaging studies in a tissue phantom and in vivo show that our system successfully guided the forward-viewing catheter toward a target while being imaged with the sideviewing catheter. The forward-viewing catheter then was activated to monitor the target while we mimicked therapy delivery. In the future, the system will switch between 3-D probes on a line-by-line basis and display both volumes simultaneously.
Authors:
Matthew P Fronheiser; Edward D Light; Salim F Idriss; Patrick D Wolf; Stephen W Smith
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  IEEE transactions on ultrasonics, ferroelectrics, and frequency control     Volume:  53     ISSN:  0885-3010     ISO Abbreviation:  IEEE Trans Ultrason Ferroelectr Freq Control     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-02-13     Completed Date:  2006-03-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882735     Medline TA:  IEEE Trans Ultrason Ferroelectr Freq Control     Country:  United States    
Other Details:
Languages:  eng     Pagination:  100-5     Citation Subset:  IM    
Affiliation:
Department of Biomedical Engineering, Duke University, Durham, NC, USA. mpf3@duke.edu
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Animals
Computer Systems
Dogs
Echocardiography, Three-Dimensional / instrumentation*,  methods
Equipment Design
Equipment Failure Analysis
Image Enhancement / instrumentation*,  methods
Image Interpretation, Computer-Assisted / instrumentation*,  methods
Imaging, Three-Dimensional / instrumentation*
Information Storage and Retrieval / methods
Reproducibility of Results
Sensitivity and Specificity
Transducers*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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