材料和方法:研究的糖尿病人总体由美国荣军管理医院内科诊断为依赖胰岛素的病人组成,作者把病人分为四组: 1.检眼镜未检测到视网膜病变的糖尿病者;2.仅伴有初期视网膜病变的糖尿病者;3.伴有增殖性视网膜病变的糖尿病者;4.束期眼的糖尿病者。无糖尿病及眼病史的脑扫描病人作为对照者。20mCi~(99m)Tc—DTPA静注2小时后,病人仰卧在检查床上,用海绵支架固定头部。闪烁照相机连在带128×128象素彩色显示器的计算机上,脑照相取300K计数,先后作标准位及Waters位照相,Waters位照相(探头向头侧倾斜呈5°、10°、15°角)能较好地把眼眶与干扰本底的鼻腔、颅窦和唾液腺分隔 MATERIALS AND METHODS: The diabetic patients studied were overall diagnosed as insulin dependent patients by Invalley Administration Hospital. The authors divided the patients into four groups: 1. Ophthalmoscopy did not detect diabetic patients with retinopathy; 2. Patients with only initial Diabetic patients with retinopathy; 3. Diabetic patients with proliferative retinopathy; 4. Diabetic patients with bundle eyes. Non-diabetic and ophthalmic history of brain scan patients as a control. After 2 hours of intravenous injection of 20 mCi ~ (99m) Tc-DTPA, the patient was supine on the examination bed and the head was fixed with a sponge scaffold. The flickering camera was connected to a computer with a 128 x 128 pixel color display. The brain was taken at 300K counts, followed by a standard photograph and Waters photography. Waters were photographed (the probe tilted 5 °, 10 ° and 15 ° to the head ) Can better separate the orbit from the nasal, cranial and salivary glands that interfere with the background