PET 검사에서 Iterative 재구성 방법과 True X 재구성 방법에 따른 영상의 균일성 및 대조도 비교 평가

• 영문명: Performance Test of the Iterative Method and Newly Developed True X Method
• 발행기관: 대한핵의학기술학회
• 저자명: 최재민(Jae Min Choi) 남궁창경(Chang Kyeong Nam kung) 박승용(Seung yong Park) 남기표(Ki Pyo Nam) 임기천(Ki Cheon Lim)
• 간행물 정보: 『핵의학기술』Vol.13 No.1, 20~24쪽, 전체 5쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2009.05.30

영문 초록

Objective: In this study, the differences between two reconstruction methods were analyzed by comparing image uniformity and contrast according to Iteration and Subset, which were altered through the Iterative method and True X method, used in Siemens’ PET/CT studies. Methods: The Phantom images were obtained by exposure for two minutes per one bed. To determine the image uniformity, the Coefficient of variance was used. Also, in order to compare the contrast value, we measured and analyzed the ratio of the SUV mean of Phantom image’s hot spheres and the background. Results: Under the same reconstruction conditions (Iteration and Subset) of CV, the Iterative method was higher than the True X method. In the comparison of the SUV mean ratio of the background and hot sphere, the True X method had a closer rate than the Iterative method. Conclusion: The newly developed True X reconstruction method is better than the previously used Iterative method in terms of uniformity and contrast. However, the date for this study was only obtained using the Phantom device. In order to obtain more accurate and useful information from the experiment, further research should be conducted. Also, it is necessary to find the appropriate standards for Iteration and Subset for further experimentation.

목차

서론

실험재료 및 방법

결과

결론 및 고찰

요약

REFERENCES

키워드

PET/CT Iterative reconstruction Uniformity Contrast