Bertolini Giovanna, Furlanello Tommaso, Drigo Michele, Caldin Marco
San Marco Private Veterinary Clinic, Via Sorio 114/c, 35141 Padua, Italy.
Vet Radiol Ultrasound. 2008 Sep-Oct;49(5):449-53. doi: 10.1111/j.1740-8261.2008.00405.x.
We conducted a retrospective study to determine whether multidetector computed tomography (CT) could be of value for adrenal gland assessment in dogs with pituitary-dependent hyperadrenocorticism. Adrenal gland attenuation and volume values of 49 dogs with hyperadrenocorticism were recorded and age, body weight, and gender were examined to determine if a relationship existed between these variables and adrenal gland morphology. There was not a statistically significant difference in mean X-ray attenuation of the left vs. right adrenal gland in normal dogs (35.3 +/- 6.1 HU), or in dogs with hyperadrenocorticism. The mean adrenal X-ray attenuation (+/- standard deviation [SD]) in dogs with microadenoma was 33.1 +/- 6.8 vs. 31.8 +/- 12.7 HU for dogs with macroadenoma, and these values were not statistically different. The mean volume of the left adrenal gland in normal dogs (0.59 +/- 0.17 cm3) was greater than that of the right adrenal gland (0.54 +/- 0.19 cm3) (P < 0.05). The mean CT volume (+/- SD) of the adrenal glands in dogs with microadenoma vs. macroadenoma were 1.60 +/- 1.25 vs. 2.88 +/- 1.60 cm3, respectively. There was no effect of age or gender on adrenal gland morphology or X-ray attenuation. The weight effect was the most important source of variation for the volume measurement in dogs with hyperadrenocorticism.
我们进行了一项回顾性研究，以确定多排螺旋计算机断层扫描（CT）对垂体依赖性肾上腺皮质功能亢进犬肾上腺评估是否有价值。记录了49只肾上腺皮质功能亢进犬的肾上腺衰减和体积值，并检查了年龄、体重和性别，以确定这些变量与肾上腺形态之间是否存在关联。正常犬左右肾上腺的平均X线衰减值（35.3±6.1 HU）之间，以及肾上腺皮质功能亢进犬之间，均无统计学显著差异。微腺瘤犬的肾上腺平均X线衰减值（±标准差[SD]）为33.1±6.8 HU，大腺瘤犬为31.8±12.7 HU，这些值无统计学差异。正常犬左肾上腺的平均体积（0.59±0.17 cm³）大于右肾上腺（0.54±0.19 cm³）（P<0.05）。微腺瘤犬与大腺瘤犬肾上腺的平均CT体积（±SD）分别为1.60±1.25和2.88±1.60 cm³。年龄和性别对肾上腺形态或X线衰减无影响。体重影响是肾上腺皮质功能亢进犬体积测量最重要的变异来源。
