Effect of Low-Carbohydrate Diet on F-18 FDG PET/CT in a Patient with Prominent Skeletal and Cardiac Muscles FDG Uptake after Insulin Administration

低碳水化合物飲食於糖尿病患者改善正子斷層造影影像品質的效果

陳柏因(Po-Yin Chen) ； 彭南靖(Nan-Jing Peng)

《核子醫學暨分子影像雜誌》 30卷2期 (2017/06) Pp. 90-93

https://doi.org/10.6332/ANMMI.3002.006

摘要

A 58-year-old man who has pancoast adenocarcinoma of left lung and diabetes was arranged a F-18 FDG PET/CT for staging. Eight units of regular insulin were given subcutaneously 80 minutes before F-18 FDG injection to reduce high blood glucose level (259 mg/ dL). It showed suboptimal imaging of prominent FDG uptake in skeletal and cardiac muscles. Repeated scan one month later with low-carbohydrate diets including last dinner and breakfast 4 hours before F-18 FDG injection revealed a blood glucose level near upper normal limit (119 mg/dL) and an acceptable image quality, which showed a FDG-avid mass in pancoast tumor of left lung and another lesion in left lower lobe lobe that was missed in the previous scan.

關鍵字

diabetes ； F-18 FDG ； hyperglycemia ； insulin ； PET/CT

並列摘要

一58歲男性糖尿病患因左肺胸腔入口肺腺癌安排正子斷層造影檢查，給予皮下注射8單位常規胰島素80分鐘後靜脈注射氟-18去氧葡萄糖，正子斷層造影顯示去氧葡萄糖明顯攝取於骨骼肌及心肌，影像品質不佳；一個月後再次檢查，於檢查前一晚晚餐及檢查前4小時早餐的低碳水化合物飲食來降低血糖值，正子斷層造影影像品質佳，顯示去氧葡萄糖明顯攝取於左肺胸腔入口肺腺癌及另一先前未發現的左下肺腫瘤。

並列關鍵字

糖尿病 ； 氟-18去氧葡萄糖 ； 高血糖症 ； 胰島素 ； 正子斷層造影