Document Detail

Development of an In-house Endoanal Ultrasound Teaching Phantom.
MedLine Citation:
PMID:  23887948     Owner:  NLM     Status:  In-Data-Review    
Objectives- The aim of this study was to construct an anatomically correct phantom for visualization of anal sphincter complex structures. Methods- To make an endoanal ultrasound phantom, we experimented with a variety of commercially available materials to simulate hyperechoic, hypoechoic, and isoechoic tissue consistency. We created external anal sphincter muscle and the levator plate using stand-alone density gel and microbubbles to simulate the echogenicity of the muscles. A mold was created in a container, the muscles were inserted, and the mold was filled with high-density clear gel and allowed to fill. Once finished, the container was sealed tightly and stored for later use. To evaluate the accuracy of the model, 6 ultrasound imaging raters from different disciplines were included. The raters were administered a 6-item Internet-based interactive test using 2-dimensional images obtained from scanning the phantom. Rater agreement was determined. The Fleiss κstatistic was calculated to determine inter-rater reliability. Results- The raters identified the structures in 32 (89%) of 36 test questions. There was good to excellent agreement among the readers. Agreement rates for visualization of the external anal sphincter, perineal body, and internal anal sphincter were 67%, 83%, and 100%, respectively. Conclusions- An endoanal phantom can be constructed as a simulator for endoanal sonography.
S Abbas Shobeiri; Ghazaleh Rostaminia; Hediyeh Shobeiri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine     Volume:  32     ISSN:  1550-9613     ISO Abbreviation:  J Ultrasound Med     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-07-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8211547     Medline TA:  J Ultrasound Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1393-6     Citation Subset:  IM    
Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, 920 Stanton L. Young Blvd, WP2410, Oklahoma City, OK 73190, USA.
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