Durie Inge, Van Loon Gunther, Vermeire Simon, De Clercq Dominique, Vanschandevijl Katleen, Deprez Piet
Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
Vet Radiol Ultrasound. 2010 Sep-Oct;51(5):540-4. doi: 10.1111/j.1740-8261.2010.01696.x.
Little information is available on medical imaging of the adrenal glands in horses. We investigated the feasibility of transrectal ultrasonography to characterize the normal equine adrenal gland. Transrectal ultrasonography was performed in 25 healthy horses using a 7.5 MHz linear array probe at a displayed depth of 8 cm. Transrectal ultrasonography of the right adrenal gland was not feasible. For the left adrenal gland, the left kidney, the abdominal aorta, the left renal artery, the left renal vein, and the cranial mesenteric artery were used as landmarks. The size of the left adrenal gland was variable, but it generally appeared as a long, flat structure with a hyperechoic medulla surrounded by a hypoechoic cortex. The most cranial part of the gland could not be delineated appropriately in 11 horses (44%). The mean (+/-SD) thickness of the gland and medulla was 0.66 +/- 0.15cm (n = 25) and 0.28 +/- 0.09 cm (n = 25) near the caudal pole, 0.87 +/- 0.25 cm (n = 14) and 0.40 +/- 0.18 cm (n = 12) near the cranial pole, and 0.89 +/- 0.18 cm (n = 25) and 0.36 +/- 0.13 cm (n = 25) in the middle of the gland, respectively. The mean (+/-SD) length of the entire adrenal gland and of the medulla was 6.22 +/- 0.77 cm (n = 14) and 5.45 +/- 0.71 cm (n = 6), respectively. Transrectal ultrasonography allowed adequate visualization of the left adrenal gland in horses.
关于马肾上腺的医学成像信息较少。我们研究了经直肠超声检查对正常马肾上腺进行特征描述的可行性。使用7.5 MHz线性阵列探头，在显示深度为8 cm的情况下，对25匹健康马进行了经直肠超声检查。经直肠超声检查右侧肾上腺不可行。对于左侧肾上腺，以左肾、腹主动脉、左肾动脉、左肾静脉和肠系膜前动脉作为标志。左侧肾上腺的大小不一，但通常呈现为长而扁平的结构，高回声的髓质被低回声的皮质包围。11匹马（44%）的肾上腺最头端部分无法得到恰当描绘。在尾极附近，肾上腺和髓质的平均（±标准差）厚度分别为0.66±0.15 cm（n = 25）和0.28±0.09 cm（n = 25）；在头极附近分别为0.87±0.25 cm（n = 14）和0.40±0.18 cm（n = 12）；在肾上腺中部则分别为0.89±0.18 cm（n = 25）和0.36±0.13 cm（n = 25）。整个肾上腺和髓质的平均（±标准差）长度分别为6.22±0.77 cm（n = 14）和5.45±0.71 cm（n = 6）。经直肠超声检查能够充分显示马的左侧肾上腺。
