Path-loss estimation of wireless channels in capsule endoscopy from X-ray CT images

Author

Takizawa, Kenichi ; Hagiwara, Hiroaki ; Hamaguchi, Kiyoshi

Author_Institution

Nat. Inst. of Inf. & Commun. Technol. (NICT), Yokosuka, Japan

fYear

2011

fDate

Aug. 30 2011-Sept. 3 2011

Firstpage

2242

Lastpage

2245

Abstract

The paper describes an estimation method of path-loss for capsule endoscopy using wireless communications to send images from digestive tract. This method is based on the use of a set of X-ray computer tomography (CT) images of the patient. In order to evaluate this method, we conducted a measurement of received signal strength (RSS) by introducing a signal generator (SG) in esophagus and duodenum of a participant. As a result of comparisons, the method provides estimates on path-loss for the participant with estimation errors of less than 6 dB in 75% measurement positions.

Keywords

biological organs; computerised tomography; endoscopes; medical image processing; signal generators; wireless channels; X-ray CT images; X-ray computer tomography images; capsule endoscopy; digestive tract; duodenum; esophagus; path-loss estimation; received signal strength; signal generator; wireless channel; wireless communication; Antenna measurements; Atmospheric measurements; Computed tomography; Estimation; Particle measurements; Wireless communication; X-ray imaging; Capsule Endoscopes; Duodenum; Equipment Design; Equipment Failure Analysis; Esophagus; Radiographic Image Interpretation, Computer-Assisted; Reproducibility of Results; Sensitivity and Specificity; Telemetry; Tomography, X-Ray Computed;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE

Conference_Location

Boston, MA

ISSN

1557-170X

Print_ISBN

978-1-4244-4121-1

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2011.6090425

Filename

6090425