Study of Venography technique in digits of cows

ABSTRACT The aim of this study was to describe the technique of retrograde venography foot in cows, comparing the approaches of the dorsal common digital vein III with the digital commons II or IV, thoracic and pelvic by administering two different volumes of contrast members. Fifty three fore and hindlimbs of 14 cows were used, a rubber tourniquet was placed at 5cm above accessory digit. Diatrizoatemeglumine was administered at 10mL to 24 members (group 1), 13 dorsal common digital vein III for access 1 (A1), and 11 digital II or IV access 2 (A2). In group 2 20mL was administered to 29 members, 15 by 19 in A1 and A2. After contrast administration, the radiographs were repeated every 20 seconds until 120 seconds. The degree of vascular filling was greater in group 2, independent of venous access, member or moment. There was no significant difference in the degree of radiopacity of radiographic images when compared to the venous access, time and a member of both groups. We conclude that administration of 20mL of contrast showed better vascular filling and radiopacity, with no difference between 20 and 120 seconds after contrast administration in independent radiographic quality venous access.

摘要：本研究旨在描述奶牛足部逆行静脉造影（retrograde venography）技术，通过为不同肢体使用两种不同剂量对比剂，比较第3趾背侧总静脉与第2或第4趾总静脉、前肢与后肢的造影入路差异。本研究共使用14头奶牛的53条前、后肢，在副趾上方5cm处绑扎橡胶止血带。泛影葡胺（Diatrizoate Meglumine）：第1组（24条肢体）给予10mL剂量，其中13条采用第1入路（A1，即第3趾背侧总静脉入路），11条采用第2入路（A2，即第2或第4趾静脉入路）；第2组（29条肢体）给予20mL剂量，其中15条采用A1入路，14条采用A2入路。对比剂注射完成后，每20秒拍摄一次X线片，直至120秒。无论造影入路、肢体类型或拍摄时间如何，第2组的血管充盈程度均优于第1组。两组间的X线片影像不透光度，在造影入路、拍摄时间以及肢体类型方面均无显著差异。本研究结论为：使用20mL对比剂可获得更优的血管充盈效果与影像不透光度，且在对比剂注射后20秒至120秒的范围内，无论采用何种造影入路，影像质量均无显著差异。