| Autor: |
David Gibon, X. Marchandise, Jean Rousseau, E. Coste, Christian Vasseur, B. Pertuzon |
| Rok vydání: |
2002 |
| Předmět: |
|
| Zdroj: |
Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society. |
| DOI: |
10.1109/iembs.1995.575192 |
| Popis: |
In order to perform stereotactic localization in digital subtracted angiography, we present a method of correcting the distortions of an image intensifier (II) by a calibration grid. A test pattern is used to study the effectiveness of the corrections. The results obtained demonstrate the accuracy of the correction provided that the apparatus is warm. The long-range drift of the distortion is also considered. This paper demonstrates that geometrical distortions have to be corrected if the II is used for stereotactic localization and that a warm apparatus is essential for successful correction of distortions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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