[1]川玲.双探头符合线路技术和检测肿瘤的价值[J].国际放射医学核医学杂志,2002,26(1):4-7.
　CHUAN Ling.Dual-head coincidence technique and the efficiency of detecting tumor[J].International Journal of Radiation Medicine and Nuclear Medicine,2002,26(1):4-7.
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《国际放射医学核医学杂志》[ISSN:1673-4114/CN:12-1381/R]

卷:
26
期数:
2002年第1期
页码:
4-7
栏目:
综述
出版日期:
1900-01-01

文章信息/Info

Title:
Dual-head coincidence technique and the efficiency of detecting tumor
作者:
川玲
100037 北京, 海军总医院核医学科
Author(s):
CHUAN Ling
Department of Nuclear Medicine, Navy General Hospital, Beijing 100037, China
关键词:
双探头符合线路; 图像处理; 衰减校正; 图像融合; 肿瘤
Keywords:
dual-head coincidence; attenuation correction; fusion imaging; tumor
分类号:
R817.4
摘要:
双探头符合线路(DHC)显像技术的不断成熟和广泛应用,使核医学显像技术在诊断肿瘤方面有了新的发展。由于双探头符合线路在图像处理方面采用了符合探测的预先分组最大期望值图像重建(COSEM)方法(迭代重建法)代替了常用的滤波反投影法(FBP),使图像效果有了明显改善。并且,采用CT或137Cs等放射源在发射显像之前或之后作透射显像以对图像进行衰减校正,对病灶的检出以及图像效果均有较大益处。近来许多研究采用CT等影像技术与SPECT图像进行同机或非同机图像融合处理,对临床判定病灶部位有很大帮助。
Abstract:
This discussion extends that review to a description of dual-heads coincidence (DHC).On the imaging reconstruction of DHC, new algorithms using iterative reconstruction that based on the ordered subsets estimation maximization (COSEM) has been developed for coincidence imaging that improved the effect of imaging.The attenuation correction (AC) for the body DHC imaging was performed by the using CT or 137Cs.On the comparison of the effect of imaging between AC and no AC, the image quantity of AC imaging is superior to that no AC’s.The numerous studies have shown the fusion imaging from coregistered the function imaging of DHC and anatomy imaging of CT or MRI can apply more accurately imaging than DHC only.This paper also compare the efficiency of diagnosis for tumor patients with PET and FDG-DHC.The efficiency of DHC detecting to the mass of >1.5cm was higher, but the mass of <1.5cm was lower.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2001-4-23。
作者简介:川玲(1951-),女,四川人,副主任医师,主要从事心脏核医学临床工作和研究。
更新日期/Last Update: 1900-01-01