게이트심장혈액풀 스캔에서 자동 관심영역 설정과 수동 관심영역 설정 모드의 비교 분석에 관한 고찰

• 영문명: Study the Analysis of Comparison with AROI and MROI Mode in Gated Cardiac Blood Pool Scan
• 발행기관: 대한핵의학기술학회
• 저자명: 김정열(Jung Yul Kim) 강천구(Chun Koo Kang) 김영재(Yung Jae Kim) 박훈희(Hoon-Hee Park) 김재삼(Jae Sam Kim) 이창호(Chang Ho Lee)
• 간행물 정보: 『핵의학기술』Vol.12 No.2, 222~228쪽, 전체 7쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2008.10.30

영문 초록

Purpose: The objectives of this study were to compare the left ventricle ejection fraction (LVEF) from gated cardiac blood pool scan (GCBP) for analysis auto-drawing region of interest mode (AROI) and manual-drawing region of interest mode (MROI), respectively. To evaluation the relationships between values produced by both ROI modes. Materials and Methods: Gated cardiac blood pool scan using in vivo method Tc-99m Red Blood Cell were performed for 33 patients (mean age: 53.2±13.2 y) with objective of chemotherapy using single head gamma camera (ADAC Laboratories, Milpitas, CA). Left ventricular ejection fraction was automatically and manually measured, respectively. Results: There was significant difference statistically between AROI and MROI (LVEFAROI: 71.4± 12.4% vs. LVEFMROI: 65.8±5.9%, p=0.003). Intra-observer agreements in AROI was higher than MROI (γAROI=0.964, Cronbach’s αAROI=0.986 vs. γMROI=0.793, Cronbach’s αMROI= 0.911), either. Additionally, there was no significant difference statistically at best septal view (ΔLVEFBSV= 0.7±2.3%, p=0.233), however statistically significant difference was found at badly separated septal view (ΔLVEF=10.9±11.4%, p=0.001). Moreover, Intra-observer agreements in best septal view was higher than badly separated septal view (γBSV=0.939, Cronbach’s αBSV=0.978; γ=0.948, Cronbach’s α=0.981 at AROI, γBSV=0.836, Cronbach’s αBSV=0.936; γ=0.748, Cronbach’s α=0.888 at MROI). Conclusion: When best septal view was acquired, LVEF by AROI and MROI indicated not different. Comparing Intra-observer agreements with AROI and MROI, the AROI tended to show higher. Therefore, it is considered that the AROI than MROI is valuable in reproducibility and objective when ROI analysis by acquire left ventricular of best septal view.

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키워드

MUGA (RVG) Auto-drawing ROI Left ventricular ejection fraction (LVEF)