Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, Helsinki 00014, Finland.
Department of Equine and Small Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, P.O. Box 57, Helsinki 00014, Finland.
Vet J. 2011 Nov;190(2):273-277. doi: 10.1016/j.tvjl.2010.10.013. Epub 2010 Nov 20.
The spleens of 18 healthy cats were imaged using contrast-enhanced ultrasound (CEUS) to evaluate splenic perfusion and to compare perfusion patterns in awake and anaesthetised cats. Two groups of cats were imaged; the first (Group 1) consisted of 10 young, anaesthetised cats and the second (Group 2) comprised eight young to middle aged cats that were initially imaged when awake and later following anaesthesia. A two-phase enhancement of the spleen was observed both in awake and in anaesthetised cats. The time to first appearance of the contrast was significantly faster in awake (3.9±0.6s) than anaesthetised (4.8±1.0s) cats in Group 2 (P=0.031). A marked heterogeneous perfusion pattern was more prevalent in the anaesthetised (50%) compared to the awake (12.5%) animals in Group 2. The spleen was heterogeneous for approximately 30s in all groups. The results indicated that CEUS suspected focal perfusion defects of the spleen, especially during general anaesthesia, should be evaluated with caution and only after the initial heterogeneity has disappeared.
对 18 只健康猫的脾脏进行了对比增强超声（CEUS）成像，以评估脾脏灌注，并比较清醒和麻醉状态下的灌注模式。对两组猫进行了成像；第一组（组 1）由 10 只年轻麻醉猫组成，第二组（组 2）由 8 只年轻至中年猫组成，这些猫最初在清醒时进行成像，然后在麻醉后进行成像。在清醒和麻醉的猫中都观察到脾脏的两相增强。在组 2 中，清醒（3.9±0.6s）猫的对比首次出现时间明显快于麻醉（4.8±1.0s）猫（P=0.031）。在组 2 中，与清醒（12.5%）动物相比，麻醉（50%）动物中更常见明显的不均匀灌注模式。在所有组中，脾脏的不均匀性持续约 30s。结果表明，CEUS 怀疑脾脏的局灶性灌注缺陷，特别是在全身麻醉期间，应谨慎评估，仅在初始不均匀性消失后进行。
