Spatially controllable region growing for segmenting heart chambers

Takashi Ijiri, Shogo Tsuruoka, Hiryu Kamoshita, Akira Hirabayashi, Shin Inada, Isao Shiraishi, Ken Ichi Kurosaki, Kazuo Nakazawa

Research output: Contribution to journalArticlepeer-review

Abstract

Segmentation of computed tomography (CT) images has provided promising methods of con-structing precise 3-dimensional heart models. However, the process is labor intensive, because heart regions such as cardiac chambers and blood vessels have similar intensities and exist within a small space. In this pa-per, we present a tool to efficiently segment cardiac chambers and blood vessels. We extend traditional region growing to be spatially controllable. A user places multiple seeds, each having a bounding area and a threshold, and our tool “grows” regions around each seed independently within its bounding area. To efficiently specify the bounding area, we propose two types of seeds (i.e., sphere and cylinder). We also provide a negative seed that generates fixed background to avoid over-extraction errors. We compared our tool with a traditional scis-sor tool and confirmed that ours significantly reduced the time required for a segmentation task. We also present segmentation results of CT images of hearts having congenital diseases to illustrate the feasibility of our tool.

Original languageEnglish
Pages (from-to)172-180
Number of pages9
JournalAdvanced Biomedical Engineering
Volume9
DOIs
Publication statusPublished - 2020

Keywords

  • 3D heart modeling
  • Region growing
  • Volumetric image segmentation

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Computer Science Applications

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