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直肠乙状结肠交界区18F-FDG局灶性高浓聚的临床意义
作者:郭佳  
单位:沈阳军区总医院 核医学科
关键词:直肠乙状结肠 PET/CT SUVmax 生理性摄取 
分类号:
出版年·卷·期(页码):2015·43·第四期(456-459)
摘要:

目的:评价18F-FDG PET-CT显像中直乙交界区出现局灶性高浓聚的临床意义。方法:回顾性分析我院核医学科2012年9月-2013年8月2241例检查者中,直乙交界区出现局灶性高浓聚的193例检查者,以病理、相关临床及影像学随访结果为标准进行对照分析。结果:193例直乙交界区高浓聚患者中,生理性摄取101例,局限性炎性病变9例(纳入良性病变组),占位性病变83例,其中恶性病变38例,良性病灶45例。早期与延迟SUVmax在生理性摄取组均低于病变摄取组,有统计学差异;而在病变组中,早期SUVmax在良性病变与恶性病变组间无统计学差异(P>0.05),延迟SUVmax则有统计学差异(P<0.01)。结论:18F-FDG PET/CT 全身显像对直肠乙状结肠交界区疾病的检出有重要临床意义,双时相显像对该区病变的良恶性诊断有一定鉴别意义。

Objective:To evaluate the diagnostic value of 18F-FDG PET/CT whole body imaging in detecting of focal high uptake in the junctional zone of proctosigmoid. Methods:18F-FDG PET/CT whole body imaging was performed in 2241 patients, 193 patients with abnormal focal uptake in the junctional zone of proctosigmoid were retrospectively reviewed and followed up. These abnormalities were compared with the final diagnosis obtained from pathological conformation, other imaging modalities diagnosis and clinical follow-up information. Results:There were 101 physical uptake in 193 abnormalities,38 were verified malignant tumors, 54 were benign lesions, in which there were 9 with inflammation. There were significant differences in SUVmax (both early imaging and delay imaging) between physical uptake and lesion uptake;and in delay SUVmax between malignant and benign lesions. There were no differences in early SUVmax between malignant and benign lesions.Conclusion:18F-FDG PET/CT has important role in detecting abnormal uptake in proctosigmoid tumor, in identifying the malignant and benign lesions by double-phase imagings.

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