Lee, Donggi, and Sungmin Kim. 2022. "Calibration Method of Projectional Geometry for X-ray C-arm Fluoroscopy Using Sinogram Data" Applied Sciences 12, no. 15: 7543. https://doi.org/10.3390/app12157543

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Lee, D.; Kim, S. Calibration Method of Projectional Geometry for X-ray C-arm Fluoroscopy Using Sinogram Data. Appl. Sci. 2022, 12, 7543. https://doi.org/10.3390/app12157543

Lee, Donggi, and Sungmin Kim. 2022. "Calibration Method of Projectional Geometry for X-ray C-arm Fluoroscopy Using Sinogram Data" Applied Sciences 12, no. 15: 7543. https://doi.org/10.3390/app12157543

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Lee, D.; Kim, S. Calibration Method of Projectional Geometry for X-ray C-arm Fluoroscopy Using Sinogram Data. Appl. Sci. 2022, 12, 7543. https://doi.org/10.3390/app12157543

Abstract: X-ray imaging represents the most commonly used imaging modality in X-ray-guided vascular intervention procedures. Computed tomography (CT) data ensure that the procedure is performed accurately and safely by providing medical staff with positional information of the body part before starting the procedure. In particular, accurate geometric information of the imaging equipment is essential to accurately calculate the three-dimensional (3D) position of catheters used in delicate operations. However, it is difficult to gather this information before surgery. Therefore, this study proposes a novel calibration method that can be used immediately before a procedure and can guarantee the stability of the procedure. The calibration was performed without additional radiography using sinogram data obtained during the 3D CT imaging process, and both the accuracy and calculation time available in the vascular intervention theater were allowable. The experimental results show that the best angular conditions in terms of calculations and accuracy are between −40 and 40 degrees in angular range and 1.6 degrees in angular interval. Consequently, we achieved a calculation time of 2.92 s and an average accuracy of 0.36 mm, thus meeting our goal of accuracy below 1 mm within a minute of computational time. Keywords: image-guided surgery; surgical navigation; X-ray calibration

Lee D, Kim S. Calibration Method of Projectional Geometry for X-ray C-arm Fluoroscopy Using Sinogram Data. Applied Sciences. 2022; 12(15):7543. https://doi.org/10.3390/app12157543

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Lee D, Kim S. Calibration Method of Projectional Geometry for X-ray C-arm Fluoroscopy Using Sinogram Data. Applied Sciences. 2022; 12(15):7543. https://doi.org/10.3390/app12157543