PET/CT artifacts

被引:47
作者
Blodgett, Todd M. [1 ]
Mehta, Ajeet S. [1 ]
Mehta, Amar S. [1 ]
Laymon, Charles M. [1 ]
Carney, Jonathan [1 ]
Townsend, David W. [2 ]
机构
[1] Univ Pittsburgh, Dept Radiol, Pittsburgh, PA 15260 USA
[2] Singapore Bioimaging Consortium, Singapore 138667, Singapore
关键词
PET/CT; Artifact; Attenuation correction; Image quality; Protocol variable; POSITRON-EMISSION-TOMOGRAPHY; DUAL-MODALITY PET/CT; ATTENUATION CORRECTION; IMAGE QUALITY; ORAL CONTRAST; INTRAVENOUS CONTRAST; RESPIRATORY MOTION; F-18-FDG PET/CT; CT; ACQUISITION;
D O I
10.1016/j.clinimag.2010.03.001
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
There are several artifacts encountered in positron emission tomography/computed tomographic (PET/CT) imaging, including attenuation correction (AC) artifacts associated with using CT for AC. Several artifacts can mimic a 2-deoxy-2-[18F] fluoro-o-glucose (FDG) avid malignant lesions and therefore recognition of these artifacts is clinically relevant. Our goal was to identify and characterize these artifacts and also discuss some protocol variables that may affect image quality in PET/CT. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码:49 / 63
页数:15
相关论文
共 34 条
[1]   Dual-modality PET/CT scanning with negative oral contrast agent to avoid artifacts: Introduction and evaluation [J].
Antoch, G ;
Kuehl, H ;
Kanja, J ;
Lauenstein, TC ;
Schneemann, H ;
Hauth, E ;
Jentzen, W ;
Beyer, T ;
Goehde, SC ;
Debatin, JF .
RADIOLOGY, 2004, 230 (03) :879-885
[2]  
Antoch G, 2002, J NUCL MED, V43, p307P
[3]  
Beyer T, 2005, J NUCL MED, V46, P429
[4]  
Beyer T, 2004, J NUCL MED, V45, p25S
[5]   Dual-modality PET/CT imaging: the effect of respiratory motion on combined image quality in clinical oncology [J].
Beyer, T ;
Antoch, G ;
Blodgett, T ;
Freudenberg, LF ;
Akhurst, T ;
Mueller, S .
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING, 2003, 30 (04) :588-596
[6]   Combined PET-CT in the head and neck Part 1. Physiologic, altered physiologic, and artifactual FDG uptake [J].
Blodgett, TM ;
Fukui, MB ;
Snyderman, CH ;
Branstetter, BF ;
McCook, BM ;
Townsend, DW ;
Meltzer, CC .
RADIOGRAPHICS, 2005, 25 (04) :897-912
[7]   Positron emission tomography/computed tomography-imaging protocols, artifacts, and pitfalls [J].
Bockisch, A ;
Beyer, T ;
Antoch, G ;
Freudenberg, LS ;
Kühl, H ;
Debatin, JF ;
Müller, SP .
MOLECULAR IMAGING AND BIOLOGY, 2004, 6 (04) :188-199
[8]  
Brix G, 2005, J NUCL MED, V46, P608
[9]  
Bujenovic Steve, 2003, Mol Imaging Biol, V5, P20, DOI 10.1016/S1536-1632(03)00037-4
[10]   PET attenuation coefficients from CT images: experimental evaluation of the transformation of CT into PET 511-keV attenuation coefficients [J].
Burger, C ;
Goerres, G ;
Schoenes, S ;
Buck, A ;
Lonn, AHR ;
von Schulthess, GK .
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING, 2002, 29 (07) :922-927