Saunders H M, Neath P J, Brockman D J
Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia 19104-6010, USA.
Vet Radiol Ultrasound. 1998 Jul-Aug;39(4):349-53. doi: 10.1111/j.1740-8261.1998.tb01619.x.
The ultrasonographic appearance of splenic torsion has been described; the splenic parenchyma can be normal, hypoechoic or anechoic with interspersed linear echoes (coarse/"lacy" appearance). The ultrasonographic parenchymal appearance of 15 dogs in this report with splenic torsion varied: mottled hypoechoic regions (n=2), diffusely hypoechoic (n=11) and normal (n=2). Because splenic torsion causes vascular congestion due to splenic vein compression and eventual thrombosis, visible splenic vein intraluminal echogenicities compatible with thrombi were seen in 13 dogs using B-mode. Using spectral Doppler and color Doppler imaging of the splenic veins, no measurable flow velocities were detected in any of the 15 dogs. The varied B-mode ultrasonographic appearance of the splenic parenchyma with splenic torsion necessitates B-mode evaluation of the splenic veins for intraluminal echoes and spectral or color Doppler evaluation for absent velocity flow.
脾扭转的超声表现已有描述；脾实质可以正常、低回声或无回声，并伴有散在的线状回声（粗糙/“花边”样表现）。本报告中15只患有脾扭转的犬的超声实质表现各不相同：斑驳状低回声区（n = 2）、弥漫性低回声（n = 11）和正常（n = 2）。由于脾扭转因脾静脉受压及最终血栓形成而导致血管充血，在13只犬中使用B超可见脾静脉腔内存在与血栓相符的回声。对15只犬中的任何一只进行脾静脉频谱多普勒和彩色多普勒成像检查时，均未检测到可测量的血流速度。脾扭转时脾实质的B超表现各异，因此有必要对脾静脉进行B超检查以评估腔内回声，并进行频谱或彩色多普勒检查以评估血流速度是否缺失。
