PET/CT显像常见伪影及质量控制
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摘要
目的分析PET/CT检查常见伪影,探讨相应的质控措施,以减少误诊,提高诊断率。方法选取2015年1月至2018年1月期间有伪影影响的97例全身PET/CT图像,统计分析PET/CT显像的常见伪影,并探讨相应的质控措施。结果 97例有伪影的图像中设备伪影1例,运动伪影24例,金属异物伪影16例,截断伪影12例,示踪剂因素伪影11例,生理性摄取及18F-FDG的非特异性伪影33例。结论掌握PET/CT显像的常见伪影,及时采取有效的质控措施,减少或避免干扰因素,是获得高质量PET/CT图像的重要保证。
Objective To analyze the common artifacts in PET/CT examination and explore the corresponding quality control measures to reduce misdiagnosis and improve the diagnostic rate. Methods Ninety-seven whole-body PET/CT images with artifacts from January 2015 to January 2018 were selected to statistically analyze the common artifacts in PET/CT imaging and explore the corresponding quality control measures. Results Among the 97 images with artifacts, there were 1 case of device artifact, 24 cases of motion artifacts, 16 cases of metal foreign body artifacts, 12 cases of truncated artifacts, 11 cases of tracer factor artifacts, 33 cases of physiological uptake and non-specific artifacts of 18 F-FDG. Conclusion It is an important guarantee for obtaining high-quality PET/CT images to master common artifacts of PET/CT imaging, take effective quality control measures timely, and reduce or avoid interference factors.
Objective To analyze the common artifacts in PET/CT examination and explore the corresponding quality control measures to reduce misdiagnosis and improve the diagnostic rate. Methods Ninety-seven whole-body PET/CT images with artifacts from January 2015 to January 2018 were selected to statistically analyze the common artifacts in PET/CT imaging and explore the corresponding quality control measures. Results Among the 97 images with artifacts, there were 1 case of device artifact, 24 cases of motion artifacts, 16 cases of metal foreign body artifacts, 12 cases of truncated artifacts, 11 cases of tracer factor artifacts, 33 cases of physiological uptake and non-specific artifacts of 18 F-FDG. Conclusion It is an important guarantee for obtaining high-quality PET/CT images to master common artifacts of PET/CT imaging, take effective quality control measures timely, and reduce or avoid interference factors.
引文
[1]余冬兰,刘阳萍,易畅,等.PET/CT的PET质量控制[J].中国医疗设备,2015,30(5):125-127.
[2]孙涛,韩善清,汪家旺.PET/CT成像原理、优势及临床应用[J].中国医学物理学杂志,2010,27(1):1581-1582.
[3]陈香,赵军,管一晖.PET-CT常见伪影[J].国际放射医学核医学杂志,2005,29(5):201-205.
[4]陈泽龙,赵春雷,王志敏,等.PET/CT图像伪影初探[J].中国医疗设备,2014,29(3):164-167.
[5]Groves AM,Kayanil,Dickson JC,et al.Oralcontrast medium in PET/CT:Should you or shouldn’t you?[J].Eur J Nuel Mol Imageing,2005,32(10):1160-1166.
[6]黄克敏,冯彦林,贺小红,等.不同密度口服阳性对比剂对PET/CT图像质量及标准摄取值的影响[J].中国医学影像技术,2008,24(12):1999-2001.
[7]田嘉禾.P E T、P E T/C T诊断学[M].北京:化学工业出版社,2007.
[8]王瞳,邢海群,郭宁,等.PET/CT显像中呼吸运动对肺结节SUV的影响及其校正[J].现代仪器与医疗,2014,22(5):18-21.
[9]Beyer T,Amtoch G,Blodgell T,et al.Dual-modality PET/CTimaging:the effect of respiratory motion on combined image quality in clinical oncology[J].Eur J Nuel Med,2003,30:588-20596.
[10]Wang K,Chen YC,Palmer MR,et al.Focal physiologic fluorodeox-yglucose activity in the gastrointestinal tract is located within the colonic lumen[J].Nuel Med Commun,2012,33(6):641-647.
[11]钱根年,陈自谦,赵春雷,等.影响PET/CT扫描图像质量技术因素的探讨[J].中国医疗设备,2011,26(2):12-14.
[12]Blodgett TM,Mehta AS,Mehta AS,et al.PET/CT artifacts[J].Clin Imaging,2011,35(1):49-63.
[13]田嘉禾,陈英茂.放射物理基础[M].北京:中国科技出版社,2001:412-421.
[14]Kawashita NH,Brito MN,Brito SR,et al.Glucose uptake,glucose transporter GLUT4,and glycolytic enzymes in brown adipose tissue from rats adapted to a high-protein diet[J].Metabol Clin Exper,2002,51(11):1501-1505.
[15]Nakamoto Y,Chin BB,Cohade C,et al.PET/CT:artifacts caused by bowel motion[J].Nucl Med Comm,2004,25(3):221-225.
[16]陈云富,隋广平,梁秀燕.PET/CT扫描图像质量影响因素解析[J].临床影像技术,2009,24(7):130-132.
[2]孙涛,韩善清,汪家旺.PET/CT成像原理、优势及临床应用[J].中国医学物理学杂志,2010,27(1):1581-1582.
[3]陈香,赵军,管一晖.PET-CT常见伪影[J].国际放射医学核医学杂志,2005,29(5):201-205.
[4]陈泽龙,赵春雷,王志敏,等.PET/CT图像伪影初探[J].中国医疗设备,2014,29(3):164-167.
[5]Groves AM,Kayanil,Dickson JC,et al.Oralcontrast medium in PET/CT:Should you or shouldn’t you?[J].Eur J Nuel Mol Imageing,2005,32(10):1160-1166.
[6]黄克敏,冯彦林,贺小红,等.不同密度口服阳性对比剂对PET/CT图像质量及标准摄取值的影响[J].中国医学影像技术,2008,24(12):1999-2001.
[7]田嘉禾.P E T、P E T/C T诊断学[M].北京:化学工业出版社,2007.
[8]王瞳,邢海群,郭宁,等.PET/CT显像中呼吸运动对肺结节SUV的影响及其校正[J].现代仪器与医疗,2014,22(5):18-21.
[9]Beyer T,Amtoch G,Blodgell T,et al.Dual-modality PET/CTimaging:the effect of respiratory motion on combined image quality in clinical oncology[J].Eur J Nuel Med,2003,30:588-20596.
[10]Wang K,Chen YC,Palmer MR,et al.Focal physiologic fluorodeox-yglucose activity in the gastrointestinal tract is located within the colonic lumen[J].Nuel Med Commun,2012,33(6):641-647.
[11]钱根年,陈自谦,赵春雷,等.影响PET/CT扫描图像质量技术因素的探讨[J].中国医疗设备,2011,26(2):12-14.
[12]Blodgett TM,Mehta AS,Mehta AS,et al.PET/CT artifacts[J].Clin Imaging,2011,35(1):49-63.
[13]田嘉禾,陈英茂.放射物理基础[M].北京:中国科技出版社,2001:412-421.
[14]Kawashita NH,Brito MN,Brito SR,et al.Glucose uptake,glucose transporter GLUT4,and glycolytic enzymes in brown adipose tissue from rats adapted to a high-protein diet[J].Metabol Clin Exper,2002,51(11):1501-1505.
[15]Nakamoto Y,Chin BB,Cohade C,et al.PET/CT:artifacts caused by bowel motion[J].Nucl Med Comm,2004,25(3):221-225.
[16]陈云富,隋广平,梁秀燕.PET/CT扫描图像质量影响因素解析[J].临床影像技术,2009,24(7):130-132.