The development of CAD system for hemorrhagic stroke in computed tomography images

Jing Guo Gan, Yu Wei Wang, Jenn Lung Su, Lung Chan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The purpose of this study is to develop a hemorrhagic stroke computer-aided detection system to quantify three values in computed tomography, including values of brain midline shift (BMS), bleeding volume (BV) and edema volume (EV), which are basic index for physicians to observe. The median filter and region growing were used to remove the noise and skull stripping in single slice and then the brain tissue's shift axis was detect based on the location of the ventricle and pineal gland. The bleeding region and edema region were segmented by checking the symmetrical of left and right brain. Finally, after calculate the volume through each slice these three index (BMS, BV, and EV) can be obtained. Phantoms and clinical CT images which including 240 slices images from 8 cases, were used to verify this system. The error of midline shift was less than 5% and the volume difference is less than 3.47% for phantom images in average. After comparing the area of bleeding region (ABR) and edema region (AER) with this system calculated and doctor selected in those CT, the results showed that the average difference of ABR is 8.8±3.13%, the average of degree of coincidence is 86.4±5.43%, and the average difference of AER is 14.1±4.48%, the average of degree of coincidence is 77.4±6.58%. Thus, the proposed method can clearly benefit not only visual diagnostics, but also quantitative methodologies about hemorrhagic stroke-related parameters.

Original languageEnglish
Title of host publication2014 IEEE International Symposium on Bioelectronics and Bioinformatics, IEEE ISBB 2014
PublisherIEEE Computer Society
ISBN (Print)9781479927708
DOIs
Publication statusPublished - Jan 1 2014
Event2014 IEEE International Symposium on Bioelectronics and Bioinformatics, IEEE ISBB 2014 - Chung Li, Taiwan
Duration: Apr 11 2014Apr 14 2014

Conference

Conference2014 IEEE International Symposium on Bioelectronics and Bioinformatics, IEEE ISBB 2014
CountryTaiwan
CityChung Li
Period4/11/144/14/14

Keywords

  • Computed tomography
  • Edema
  • Hemorrhagic stroke
  • Image processing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Health Informatics

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