C-Arm imaging for brachytherapy source reconstruction: Geometrical accuracy Journal Article
| Author: | Fung, A. Y. C. |
| Article Title: | C-Arm imaging for brachytherapy source reconstruction: Geometrical accuracy |
| Abstract: | We study the accuracy of brachytherapy source reconstruction using C-Arm images. We use a phantom embedded with dummy ribbons in a regular pattern, placed at the rotation center of the C-Arm. With a commercial reconstruction jig, radiographic films are taken without the image intensifier. The average error in reconstructed seed coordinates is 0.1 cm. However, the jig is inconvenient for patient procedures. For C-Arm reconstruction without the jig, the magnifications of the image intensifier along orthogonal directions are different. We "stretch" the image to equalize the magnifications. Afterward, seed reconstruction has an average error of 0.1 cm in all directions. © 2002 American Association of Physicists in Medicine. |
| Keywords: | accuracy; statistics; image analysis; computer assisted diagnosis; instrumentation; geometry; image quality; brachytherapy; radiotherapy planning, computer-assisted; equipment design; phantom; phantoms, imaging; computer assisted radiotherapy; reconstruction; radiographic image interpretation, computer-assisted; fluoroscopy; biophysics; x ray film; c-arm; geometrical; humans; human; priority journal; article; magnification radiography |
| Journal Title: | Medical Physics |
| Volume: | 29 |
| Issue: | 5 |
| ISSN: | 0094-2405 |
| Publisher: | American Association of Physicists in Medicine |
| Date Published: | 2002-05-01 |
| Start Page: | 724 |
| End Page: | 726 |
| Language: | English |
| DOI: | 10.1118/1.1473136 |
| PUBMED: | 12033568 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | Export Date: 14 November 2014 -- Source: Scopus |
