PET/CT검사에서 CT의 확대 유효시야 적용이 표준화섭취계수에 미치는 영향

• 영문명: Effect of Extended Field of View on Measurements of Standardized Uptake Value in PET/CT
• 발행기관: 대한핵의학기술학회
• 저자명: 박순기(Soon Ki Park) 남기표(Ki Pyo Nam) 김경식(Kyeong Sik Kim) 신상기(Sang Ki Shin)
• 간행물 정보: 『핵의학기술』Vol.13 No.1, 82~85쪽, 전체 4쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2009.05.30

영문 초록

Purpose: The purpose of this study was to evaluate the effect of extended CT field of view (FOV) on PET/CT of Standardized uptake value (SUV) when imaging extends beyond the CT FOV. Materials and Methods: CT images were reconstructed at different FOV sizes (500 and 700 mm). Two sets of CT images were reconstructed from the CT projection data by using two FOV sizes. Twenty patients were used in this study. PET images were reconstructed using attenuation maps with 500 mm CT FOV and 700 mm extended CT FOV images. Region of interests (ROIs) drawn on the PET images. In addition, twenty patients’ PET images reconstructed by 500 mm CT FOV and 700 mm extended CT FOV were compared with SUVmax. Results: When using attenuation maps with 700 mm extended CT FOV, the SUVmax analysis of liver (p=0.000), lung (p=0.007), mediastinum (p=0.001) were statistically significant. Conclusions: 700 mm extended CT FOV helps to recover the true activity distribution in the PET emission data. In addition, 700 mm extended CT FOV has affected SUV measurement of liver, lung, mediastinum.

목차

서론

실험재료 및 방법

결과

고찰 및 결론

REFERENCES

키워드

PET/CT FOV SUV