Visualization of normal organs by whole-body FDG-PET

被引：0

作者：

Kato, T ^{[1
]}

Tsukamoto, E ^{[1
]}

Suginami, Y ^{[1
]}

Mabuchi, M ^{[1
]}

Yoshinaga, K ^{[1
]}

Takano, A ^{[1
]}

Adachi, I ^{[1
]}

Shiga, T ^{[1
]}

Morita, K ^{[1
]}

Katoh, C ^{[1
]}

Kuge, Y ^{[1
]}

Tamaki, N ^{[1
]}

机构：

[1] Hokkaido Univ, Sch Med, Dept Nucl Med, Kita Ku, Sapporo, Hokkaido 0608638, Japan

来源：

POSITRON EMISSION TOMOGRAPHY IN THE MILLENNIUM | 2000年 / 1197卷

关键词：

normal variation; positron emission tomography; tumor detection;

D O I：

暂无

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：

It is important to know normal FDG accumulation in major organs for interpreting whole-body FDG-PET. Twenty-eight normal subjects were studied in whole-body PET imaging. The intensity of FDG uptake in organs was evaluated, and the factors which caused the variability of normal FDG accumulation were examined. Emission images were acquired and reconstructed using filtered back-projection without attenuation correction. FDG uptake was classified into four grades visually. The oral cavity, the liver, the stomach, and the colon were visualized in all subjects. Especially the oral cavity frequently showed "high" grade uptake. The laryngeal and cervical muscles, and the heart showed variable FDG accumulation. The fasting time was shorter in subjects whose heart showed "high" accumulation than in those who showed less accumulation (p < 0.05). Serum concentration of free fatty acid was significantly lower in them, too (p < 0.05). No association was found between FDG uptake in organs and subject's age. Careful evaluation is necessary to distinguish abnormal accumulation from normal variation in the oral cavity, the laryngeal and cervical muscles, and the heart. A longer fasting time is better to avoid myocardial uptake and may lead to reduced misinterpretation.

引用

页码：221 / 224

页数：4

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