Abstract
The advantages and disadvantages of the two types of C-arm in spatial localization, one with an image intensifier and anthor with a flat-panel, are compared. And based on this, a method for catheter localization using the C-arm with flat-panel is proposed. The method uses the pinhole camera model to calibrate the C-arm system, and uses the triangulation theory to achieve three-dimensional reconstruction. The Experiments on C-arm calibration and catheter localization with the single C-arm and the dual C-arm were conducted by using a custom-designed phantom. The results showed that the positioning accuracy with the dual C-arm was higher than that with the single C-arm. Their maximum errors were both less than 1.25 mm, and the average errors were less than 0.62 mm, which can meet the clinical requirement. The proposed method is simple in principle, and easy to realize. It can be applied to flat-paneled C-arms produced by different manufacturers for their similar imaging principle.
| Original language | English |
|---|---|
| Pages (from-to) | 395-402 |
| Number of pages | 8 |
| Journal | Gaojishu Tongxin/High Technology Letters |
| Volume | 22 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2012 |
| Externally published | Yes |
Keywords
- Accuracy analysis
- Calibration
- Flat panel C-arm
- Stereo localization