IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2016-06-10 13:25
Verification of accuracy on scatterer size estimation for excised rat liver
Ryota Torii, Kazuki Tamura, Kenji Yoshida (Chiba Univ.), Hideyuki Hasegawa (Toyama Univ.), Tadashi Yamaguchi (Chiba Univ.) US2016-23
Abstract (in Japanese) (See Japanese page) 
(in English) Scatterer size estimation is one of quantitative ultrasonic methods for diagnosing fatty liver disease. In this method, the frequency dependence of the power spectrum of echo signals are analyzed to estimate the size of primary scatterer in the medium. Based on the measurement of reference phantom containing of glass beads with 60 m diameter, this report investigates how the estimated size of scatterer depend on the transducer specification and analysis condition for especially region of interest (ROI). Echo signals were acquired using two types of single-element focused transducers with center frequency of 15 MHz and 25 MHz. As a result, it was shown that the stable estimation could be conducted when the size of analytic region of interest was more than twice of point spread function (PSF) of ultrasonic beam for lateral direction, and 8 times wave length for axial direction. In addition, the scatterer size estimation was applied to the excised rat livers (normal model and fatty model) to clarify the problems in tissue characterization for fatty liver. Estimated scatterer size of fatty liver was 73.6 % of normal liver in 15 MHz, and 87.4 % of normal liver in 25 MHz. The estimated size was 30-50 m slightly larger than predictable scatterers such as nucleus of hepatocyte and lipid droplet.
Keyword (in Japanese) (See Japanese page) 
(in English) Fatty Liver / Tissue Characterization / Scatterer Size / Reference Phantom / Sound Field / Hepatocyte Nucleus / Lipid Droplet /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 84, US2016-23, pp. 23-28, June 2016.
Paper # US2016-23 
Date of Issue 2016-06-03 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2016-23

Conference Information
Committee US  
Conference Date 2016-06-10 - 2016-06-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Gofuku Campus, University of Toyama 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ultrasonics in Medicine, Acoustic Imaging, General 
Paper Information
Registration To US 
Conference Code 2016-06-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Verification of accuracy on scatterer size estimation for excised rat liver 
Sub Title (in English)  
Keyword(1) Fatty Liver  
Keyword(2) Tissue Characterization  
Keyword(3) Scatterer Size  
Keyword(4) Reference Phantom  
Keyword(5) Sound Field  
Keyword(6) Hepatocyte Nucleus  
Keyword(7) Lipid Droplet  
Keyword(8)  
1st Author's Name Ryota Torii  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Kazuki Tamura  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Kenji Yoshida  
3rd Author's Affiliation Chiba University (Chiba Univ.)
4th Author's Name Hideyuki Hasegawa  
4th Author's Affiliation Toyama University (Toyama Univ.)
5th Author's Name Tadashi Yamaguchi  
5th Author's Affiliation Chiba University (Chiba Univ.)
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2016-06-10 13:25:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2016-23 
Volume (vol) vol.116 
Number (no) no.84 
Page pp.23-28 
#Pages
Date of Issue 2016-06-03 (US) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan