核医学显像与呼吸门控

司宏伟; 耿建华; 陈盛祖

核医学显像与呼吸门控

司宏伟 , 耿建华 , 陈盛祖

文章导航 > 国际放射医学核医学杂志 > 2007, 31 > 2: (104-107)

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核医学显像与呼吸门控

100021 北京, 中国协和医科大学中国医学科学院肿瘤医院肿瘤研究所核医学科
中图分类号: R817.4

Respiratory gating nuclear medicine modality

Department of Nuclear Medicine, PUMC & CAMS Cancer Hospital, Beijing 100021, China
CLC number: R817.4

摘要: 临床PET的空间分辨率可以达到4-5mm,但还是与X线、CT、MRI等显像方法的分辨率无法相比,从而限制了其在临床中的应用,其中最突出的是,在放疗计划中不能准确地勾画靶区。影响PET空间分辨率的因素很多,呼吸运动所造成的伪影就是其中之一。如果对呼吸运动进行补偿,则可以提高PET的空间分辨率,从而拓宽PET的临床应用。呼吸门控就是补偿方法之一。
- 体层摄影术,发射型计算机 /
- 体层摄影术,X线计算机 /
- 呼吸门控 /
- 放射治疗计划
Abstract: The spatial resolution of PET can reach 4-5mm in clinic, but it can not compare with X-ray, CT, MRI and other modality, and consequently restrict the application of PET in some clinical area, especially the inaccurate delineation of target volume in radiotherapy plan. Lots of factors can affect the resolution of PET, one of them is the smear caused by the motion of respiratory. The spatial resolution can be improved after the compensation of respiratory movement in order to enlarge the clinical application of PET. One of the compensation methods is respiratory gating.
- Tomography, emission-computed /
- Tomography, X-ray computed /
- Respiratory gating /
- Radiotherapy planing
本作品遵循Signature-Non-Commercial Use 4.0 International (CC BY-NC 4.0)协议

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核医学显像与呼吸门控

100021 北京, 中国协和医科大学中国医学科学院肿瘤医院肿瘤研究所核医学科

收稿日期: 2006-08-08

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摘要: 临床PET的空间分辨率可以达到4-5mm,但还是与X线、CT、MRI等显像方法的分辨率无法相比,从而限制了其在临床中的应用,其中最突出的是,在放疗计划中不能准确地勾画靶区。影响PET空间分辨率的因素很多,呼吸运动所造成的伪影就是其中之一。如果对呼吸运动进行补偿,则可以提高PET的空间分辨率,从而拓宽PET的临床应用。呼吸门控就是补偿方法之一。