관상동맥 CT혈관조영술에서의 운동 인공물에 대한 심전도 보정에 의한 영상재구성 기법

An Image Reconstruction Technique Based on ECG-pulsing Editing for Motion Artifacts in CT Coronary Angiography

Purpose This study was purposed to report cases to whom an image reconstruction technique based on ECG-pulsing editing was applied for artifacts in images caused by instable breathing when the cycle of heart rate is irregular or very fast. Materials and methods An image reconstruction technique based on ECG-pulsing editing was applied to 5 patients who were sampled from those who had ECG-synchronized CT angiography since September 2007 and in whose images artifacts occurred. Results Artifacts in the images could be removed through the movement, deletion and insertion of specific intervals of heart rate by the image reconstruction technique based on ECG-pulsing editing. Conclusion The image reconstruction technique based on ECG-pulsing editing is considered greatly helpful in reconstructing optimal 3D images from images with distortion, loss or stair-step artifacts in patients showing fast or irregular heart rate.