유방암 PET-CT 검사에서 Prone(복와위)자세의 유용성 평가

• 영문명: Usefulness of Prone Position on PET-CT in Breast Cancer
• 발행기관: 대한핵의학기술학회
• 저자명: 박훈희(Hoon-Hee Park) 김세영(Sei Yung Kim) 김정열(Jung Yul Kim) 박민수(Min-Soo Park) 임한상(Han Snag Lim) 정석(Suk Jung) 강천구(Chun Goo Kang) 김재삼(Jae Sam Kim) 이창호(Chang Ho Lee) Yung Joo Lee
• 간행물 정보: 『핵의학기술』Vol.12 No.1, 44~48쪽, 전체 5쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2008.05.30

영문 초록

Purpose: In FDG-PET/CT of breast cancer, a sensitivity was 80~96% and a specificity was 75~95% commonly. It was valuable to identify a cancer in early stage been difficult in Mammography. Most of the PET/CT scans have been examined on supine position, so, the image of breast has been acquired by reconstructed whole body scan image. However, using prone position with a compensator, a shape of breast was reassembly shown to be real by gravity. Therefore, the purpose of this study was to evaluate diagnostic value of prone position in FDG PET-CT of breast cancer. Materials and Methods: 30 female patients with doubtful or positive breast cancer were examined. The PET-CT whole body scan was acquired at 60 minutes after ¹⁸F-FDG injection on Supine position. Then, regional breast spot scan was progressed on prone position using a compensator. Each image was evaluated by physicians blinded to patient’s data, and statistical analysis did through SUVs measured in PET-CT images. Results: In 27 of 30 patients, prone position was shown accurate discrimination and diagnostic value, but in another 3 patients had a lesion 1cm below, PET-CT couldn’t detect it, unlike MRI. Consequently, prone position distinguished a lesion better than Supine position, because of low degree of metamorphosis by gravity. The SUVs analysis of each position was significant (p value=0.004). Conclusion: In PET-CT of breast cancer, prone position could detect micrometastasis as well as primary lesion, better than supine position. Therefore, this study proposes that any technical change considered morphological feature like prone position can offer adequate and useful diagnostic information, together with complementary quantitative analysis. (Korean J Nucl Med Technol 2008;

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키워드

PET-CT Breast Cancer Prone Position