Skip to main content

A three-dimensional deformable model for segmentation of human prostate from ultrasound images.

Publication ,  Journal Article
Ghanei, A; Soltanian-Zadeh, H; Ratkewicz, A; Yin, FF
Published in: Med Phys
October 2001

Segmentation of human prostate from ultrasound (US) images is a crucial step in radiation therapy, especially in real-time planning for US image-guided prostate seed implant. This step is critical to determine the radioactive seed placement and to ensure the adequate dose coverage of prostate. However, due to the low contrast of prostate and very low signal-to-noise ratio in US images, this task remains as an obstacle. The manual segmentation of this object is time consuming and highly subjective. In this work, we have proposed a three-dimensional (3D) deformable surface model for automatic segmentation of prostate. The model has a discrete structure made from a set of vertices in the 3D space that form triangle facets. The model converges from an initial shape to its equilibrium iteratively, by a weighted sum of the internal and external forces. Internal forces are based on the local curvature of the surface and external forces are extracted from the volumetric image data by applying an appropriate edge filter. We have also developed a method for initialization of the model from a few initial contours that are drawn on different slices. During the deformation, a resampling procedure is used to maintain the resolution of the model. The entire model is applied in a multiscale scheme, which increases the robustness and speed, and guarantees a better convergence. The model is tested on real clinical data and initial results are very promising.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Med Phys

DOI

ISSN

0094-2405

Publication Date

October 2001

Volume

28

Issue

10

Start / End Page

2147 / 2153

Location

United States

Related Subject Headings

  • Ultrasonography
  • Reproducibility of Results
  • Radiotherapy Planning, Computer-Assisted
  • Prostatic Neoplasms
  • Prostate
  • Nuclear Medicine & Medical Imaging
  • Models, Theoretical
  • Models, Anatomic
  • Male
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Ghanei, A., Soltanian-Zadeh, H., Ratkewicz, A., & Yin, F. F. (2001). A three-dimensional deformable model for segmentation of human prostate from ultrasound images. Med Phys, 28(10), 2147–2153. https://doi.org/10.1118/1.1388221
Ghanei, A., H. Soltanian-Zadeh, A. Ratkewicz, and F. F. Yin. “A three-dimensional deformable model for segmentation of human prostate from ultrasound images.Med Phys 28, no. 10 (October 2001): 2147–53. https://doi.org/10.1118/1.1388221.
Ghanei A, Soltanian-Zadeh H, Ratkewicz A, Yin FF. A three-dimensional deformable model for segmentation of human prostate from ultrasound images. Med Phys. 2001 Oct;28(10):2147–53.
Ghanei, A., et al. “A three-dimensional deformable model for segmentation of human prostate from ultrasound images.Med Phys, vol. 28, no. 10, Oct. 2001, pp. 2147–53. Pubmed, doi:10.1118/1.1388221.
Ghanei A, Soltanian-Zadeh H, Ratkewicz A, Yin FF. A three-dimensional deformable model for segmentation of human prostate from ultrasound images. Med Phys. 2001 Oct;28(10):2147–2153.

Published In

Med Phys

DOI

ISSN

0094-2405

Publication Date

October 2001

Volume

28

Issue

10

Start / End Page

2147 / 2153

Location

United States

Related Subject Headings

  • Ultrasonography
  • Reproducibility of Results
  • Radiotherapy Planning, Computer-Assisted
  • Prostatic Neoplasms
  • Prostate
  • Nuclear Medicine & Medical Imaging
  • Models, Theoretical
  • Models, Anatomic
  • Male
  • Humans