Cargando…
THR Simulator – the software for generating radiographs of THR prosthesis
BACKGROUND: Measuring the orientation of acetabular cup after total hip arthroplasty is important for prognosis. The verification of these measurement methods will be easier and more feasible if we can synthesize prosthesis radiographs in each simulated condition. One reported method used an expensi...
Autores principales: | , , , , |
---|---|
Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2009
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2636752/ https://www.ncbi.nlm.nih.gov/pubmed/19149874 http://dx.doi.org/10.1186/1471-2474-10-8 |
_version_ | 1782164297461268480 |
---|---|
author | Wu, Tai-Yin Yang, Rong-Sen Fuh, Chiou-Shann Hou, Sheng-Mou Liaw, Chen-Kun |
author_facet | Wu, Tai-Yin Yang, Rong-Sen Fuh, Chiou-Shann Hou, Sheng-Mou Liaw, Chen-Kun |
author_sort | Wu, Tai-Yin |
collection | PubMed |
description | BACKGROUND: Measuring the orientation of acetabular cup after total hip arthroplasty is important for prognosis. The verification of these measurement methods will be easier and more feasible if we can synthesize prosthesis radiographs in each simulated condition. One reported method used an expensive mechanical device with an indeterminable precision. We thus develop a program, THR Simulator, to directly synthesize digital radiographs of prostheses for further analysis. Under Windows platform and using Borland C++ Builder programming tool, we developed the THR Simulator. We first built a mathematical model of acetabulum and femoral head. The data of the real dimension of prosthesis was adopted to generate the radiograph of hip prosthesis. Then with the ray tracing algorithm, we calculated the thickness each X-ray beam passed, and then transformed to grey scale by mapping function which was derived by fitting the exponential function from the phantom image. Finally we could generate a simulated radiograph for further analysis. RESULTS: Using THR Simulator, the users can incorporate many parameters together for radiograph synthesis. These parameters include thickness, film size, tube distance, film distance, anteversion, abduction, upper wear, medial wear, and posterior wear. These parameters are adequate for any radiographic measurement research. This THR Simulator has been used in two studies, and the errors are within 2° for anteversion and 0.2 mm for wearing measurement. CONCLUSION: We design a program, THR Simulator that can synthesize prosthesis radiographs. Such a program can be applied in future studies for further analysis and validation of measurement of various parameters of pelvis after total hip arthroplasty. |
format | Text |
id | pubmed-2636752 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-26367522009-02-06 THR Simulator – the software for generating radiographs of THR prosthesis Wu, Tai-Yin Yang, Rong-Sen Fuh, Chiou-Shann Hou, Sheng-Mou Liaw, Chen-Kun BMC Musculoskelet Disord Software BACKGROUND: Measuring the orientation of acetabular cup after total hip arthroplasty is important for prognosis. The verification of these measurement methods will be easier and more feasible if we can synthesize prosthesis radiographs in each simulated condition. One reported method used an expensive mechanical device with an indeterminable precision. We thus develop a program, THR Simulator, to directly synthesize digital radiographs of prostheses for further analysis. Under Windows platform and using Borland C++ Builder programming tool, we developed the THR Simulator. We first built a mathematical model of acetabulum and femoral head. The data of the real dimension of prosthesis was adopted to generate the radiograph of hip prosthesis. Then with the ray tracing algorithm, we calculated the thickness each X-ray beam passed, and then transformed to grey scale by mapping function which was derived by fitting the exponential function from the phantom image. Finally we could generate a simulated radiograph for further analysis. RESULTS: Using THR Simulator, the users can incorporate many parameters together for radiograph synthesis. These parameters include thickness, film size, tube distance, film distance, anteversion, abduction, upper wear, medial wear, and posterior wear. These parameters are adequate for any radiographic measurement research. This THR Simulator has been used in two studies, and the errors are within 2° for anteversion and 0.2 mm for wearing measurement. CONCLUSION: We design a program, THR Simulator that can synthesize prosthesis radiographs. Such a program can be applied in future studies for further analysis and validation of measurement of various parameters of pelvis after total hip arthroplasty. BioMed Central 2009-01-16 /pmc/articles/PMC2636752/ /pubmed/19149874 http://dx.doi.org/10.1186/1471-2474-10-8 Text en Copyright © 2009 Wu et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Software Wu, Tai-Yin Yang, Rong-Sen Fuh, Chiou-Shann Hou, Sheng-Mou Liaw, Chen-Kun THR Simulator – the software for generating radiographs of THR prosthesis |
title | THR Simulator – the software for generating radiographs of THR prosthesis |
title_full | THR Simulator – the software for generating radiographs of THR prosthesis |
title_fullStr | THR Simulator – the software for generating radiographs of THR prosthesis |
title_full_unstemmed | THR Simulator – the software for generating radiographs of THR prosthesis |
title_short | THR Simulator – the software for generating radiographs of THR prosthesis |
title_sort | thr simulator – the software for generating radiographs of thr prosthesis |
topic | Software |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2636752/ https://www.ncbi.nlm.nih.gov/pubmed/19149874 http://dx.doi.org/10.1186/1471-2474-10-8 |
work_keys_str_mv | AT wutaiyin thrsimulatorthesoftwareforgeneratingradiographsofthrprosthesis AT yangrongsen thrsimulatorthesoftwareforgeneratingradiographsofthrprosthesis AT fuhchioushann thrsimulatorthesoftwareforgeneratingradiographsofthrprosthesis AT houshengmou thrsimulatorthesoftwareforgeneratingradiographsofthrprosthesis AT liawchenkun thrsimulatorthesoftwareforgeneratingradiographsofthrprosthesis |