The University of Southampton
University of Southampton Institutional Repository

Improving the process of making rapid prototyping models from medical ultrasound images

Improving the process of making rapid prototyping models from medical ultrasound images
Improving the process of making rapid prototyping models from medical ultrasound images
Purpose:

Today, medical models can be made by the use of medical imaging systems through modern image processing methods and rapid prototyping (RP) technology. In ultrasound imaging systems, as images are not layered and are of lower quality as compared to those of computerized tomography (CT) and magnetic resonance imaging (MRI), the process for making physical models requires a series of intermediate processes and it is a challenge to fabricate a model using ultrasound images due to the inherent limitations of the ultrasound imaging process. The purpose of this paper is to make high quality, physical models from medical ultrasound images by combining modern image processing methods and RP technology.

Design/methodology/approach:

A novel and effective semi-automatic method was developed to improve the quality of 2D image segmentation process. In this new method, a partial histogram of 2D images was used and ideal boundaries were obtained. A 3D model was achieved using the exact boundaries and then the 3D model was converted into the stereolithography (STL) format, suitable for RP fabrication. As a case study, the foetus was chosen for this application since ultrasonic imaging is commonly used for foetus imaging so as not to harm the baby. Finally, the 3D Printing (3DP) and PolyJet processes, two types of RP technique, were used to fabricate the 3D physical models.

Findings:

The physical models made in this way proved to have sufficient quality and shortened the process time considerably.

Originality/value:

It is still a challenge to fabricate an exact physical model using ultrasound images. Current commercial histogram-based segmentation method is time-consuming and results in a less than optimum 3D model quality. In this research work, a novel and effective semi-automatic method was developed to select the threshold optimum value easily.
1355-2546
287-298
Vaezi, Mohammad
828e14c1-3236-4153-8f69-3837233f48ed
Chua, Chee Kai
c18f7791-75be-42f8-99cb-6ec71d2184c4
Chou, Siaw Meng
8e1a5545-fe23-4b18-92d4-e429679fd48b
Vaezi, Mohammad
828e14c1-3236-4153-8f69-3837233f48ed
Chua, Chee Kai
c18f7791-75be-42f8-99cb-6ec71d2184c4
Chou, Siaw Meng
8e1a5545-fe23-4b18-92d4-e429679fd48b

Vaezi, Mohammad, Chua, Chee Kai and Chou, Siaw Meng (2012) Improving the process of making rapid prototyping models from medical ultrasound images Rapid Prototyping Journal, 18, (4), pp. 287-298. (doi:10.1108/13552541211231716).

Record type: Article

Abstract

Purpose:

Today, medical models can be made by the use of medical imaging systems through modern image processing methods and rapid prototyping (RP) technology. In ultrasound imaging systems, as images are not layered and are of lower quality as compared to those of computerized tomography (CT) and magnetic resonance imaging (MRI), the process for making physical models requires a series of intermediate processes and it is a challenge to fabricate a model using ultrasound images due to the inherent limitations of the ultrasound imaging process. The purpose of this paper is to make high quality, physical models from medical ultrasound images by combining modern image processing methods and RP technology.

Design/methodology/approach:

A novel and effective semi-automatic method was developed to improve the quality of 2D image segmentation process. In this new method, a partial histogram of 2D images was used and ideal boundaries were obtained. A 3D model was achieved using the exact boundaries and then the 3D model was converted into the stereolithography (STL) format, suitable for RP fabrication. As a case study, the foetus was chosen for this application since ultrasonic imaging is commonly used for foetus imaging so as not to harm the baby. Finally, the 3D Printing (3DP) and PolyJet processes, two types of RP technique, were used to fabricate the 3D physical models.

Findings:

The physical models made in this way proved to have sufficient quality and shortened the process time considerably.

Originality/value:

It is still a challenge to fabricate an exact physical model using ultrasound images. Current commercial histogram-based segmentation method is time-consuming and results in a less than optimum 3D model quality. In this research work, a novel and effective semi-automatic method was developed to select the threshold optimum value easily.

Full text not available from this repository.

More information

Published date: 22 June 2012
Organisations: Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 348236
URI: http://eprints.soton.ac.uk/id/eprint/348236
ISSN: 1355-2546
PURE UUID: e5261611-3c15-4de1-85b2-8fab80a8f8b9

Catalogue record

Date deposited: 11 Feb 2013 10:02
Last modified: 18 Jul 2017 04:53

Export record

Altmetrics

Contributors

Author: Mohammad Vaezi
Author: Chee Kai Chua
Author: Siaw Meng Chou

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×