Marques-Sampaio Beatriz P S, Pereira-Sampaio Marco A, Henry Robert W, Favorito Luciano A, Sampaio Francisco J B
College of Veterinary Medicine, Serra dos Orgños Educational Foundation, Teresópolis, RJ, Brazil.
Anat Rec (Hoboken). 2007 Aug;290(8):1017-22. doi: 10.1002/ar.20567.
The detailed findings of canine intrarenal anatomy (collecting system and arteries) are presented. Ninety-five three-dimensional endocasts of the kidney collecting system together with the intrarenal arteries were prepared using standard injection-corrosion techniques and were studied. A single renal artery was observed in 88.4% of the casts. The renal artery divided into a dorsal and a ventral branch. Using the branching pattern of the ventral and dorsal divisions of the renal artery, the vessels were classified in type I or type II. Type I presented a cranial and a caudal artery, whereas type II presented a mesorenal and a caudal artery. Cranial branches of dorsal and ventral arteries supplied the cranial pole in 90.5% of the specimens. Caudal branches of the dorsal and the ventral divisions of the renal artery irrigated both the caudal pole and the mid-zone of the kidney in 95.8% and 98.9% of the cases, respectively. In all casts, caudal branches of both dorsal and ventral arteries supplied the caudal pole. Therefore, the caudal branches of the ventral and dorsal divisions of the renal artery are of utmost importance in the kidney arterial supply. Although many results of renal and intrarenal anatomy in dogs may not be completely transposed to humans, the anatomical relationship between arteries and the collecting system in the cranial pole of the dog kidney is similar to those in man. This fact supports the use of the dog as an animal model for urologic procedures at the cranial pole.
本文展示了犬肾内解剖结构（集合系统和动脉）的详细研究结果。我们采用标准的注射腐蚀技术制备了95个肾脏集合系统与肾内动脉的三维铸型，并对其进行了研究。在88.4%的铸型中观察到单一肾动脉。肾动脉分为背侧支和腹侧支。根据肾动脉背侧和腹侧分支的分支模式，将血管分为I型或II型。I型有一条头侧动脉和一条尾侧动脉，而II型有一条中肾动脉和一条尾侧动脉。在90.5%的标本中，背侧和腹侧动脉的头侧分支供应肾头极。在95.8%和98.9%的病例中，肾动脉背侧和腹侧分支的尾侧支分别灌溉肾尾极和肾中区。在所有铸型中，背侧和腹侧动脉的尾侧支均供应肾尾极。因此，肾动脉背侧和腹侧分支的尾侧支在肾脏动脉供应中至关重要。尽管犬肾和肾内解剖的许多结果可能无法完全应用于人类，但犬肾头极动脉与集合系统之间的解剖关系与人类相似。这一事实支持将犬作为肾头极泌尿外科手术的动物模型。
