Departments of Environmental and Radiological Health Sciences, Colorado State University, 300 West Drake Road, Fort Collins, Colorado, 80523, USA.
Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, 300 West Drake Road, Fort Collins, Colorado, 80523, USA.
J Small Anim Pract. 2021 Jul;62(7):562-569. doi: 10.1111/jsap.13315. Epub 2021 Mar 9.
To evaluate dogs with computed tomography angiography of the abdomen for overall prevalence of portal vein thrombosis and prevalence of portal vein thrombosis based on different disease categories. To evaluate dogs with and without portal vein thrombosis for differences in outcome. To compare ultrasound to computed tomographic angiography for identification of portal vein thrombosis.
Abdominal computed tomography angiography of 223 client-owned animals was reviewed for evidence of portal vein thrombosis. Based on medical records, dogs were assigned to disease categories: (1) liver disease; (2) non-hepatic neoplasia; (3) pancreatitis; (4) infectious disease; (5) immune-mediated disease; (6) other; (7) multiple diseases. Different categories were compared for the prevalence of portal vein thrombosis. Outcome was evaluated in dogs with and without portal vein thrombosis. Ultrasound reports were reviewed to determine the detection of thrombosis on ultrasound.
Twenty-eight dogs (13%) had portal vein thrombosis. The pancreatitis category contained the highest percentage of portal vein thrombosis among different categories (eight of 19; 42%). There was a similar outcome between dogs with and without portal vein thrombosis. Of 21 dogs with portal vein thrombosis that had ultrasound performed, ultrasound detected thrombosis in four of 21 (19%) cases.
In this study, portal vein thrombosis prevalence was higher in dogs with pancreatitis compared to dogs with liver disease, non-hepatic neoplasia and other abdominal or systemic disease. The portal system should be carefully evaluated with imaging in dogs with pancreatitis. As compared to ultrasound, CT angiography is the imaging method of choice for detection of portal vein thrombosis in dogs.
评估接受腹部 CT 血管造影的犬门静脉血栓形成的总体患病率及基于不同疾病类别的门静脉血栓形成患病率。评估有无门静脉血栓形成的犬之间的转归差异。比较超声和 CT 血管造影对门静脉血栓形成的识别。
回顾性分析 223 例患犬的腹部 CT 血管造影结果，以确定门静脉血栓形成的证据。根据病历，将犬分为疾病类别：（1）肝脏疾病；（2）非肝脏肿瘤；（3）胰腺炎；（4）传染病；（5）免疫介导性疾病；（6）其他；（7）多种疾病。比较不同类别的门静脉血栓形成患病率。评估有无门静脉血栓形成的犬的转归。回顾超声报告，以确定超声对血栓的检出情况。
28 只犬（13%）存在门静脉血栓形成。不同类别中，胰腺炎类别门静脉血栓形成的百分比最高（19 只犬中的 8 只；42%）。有无门静脉血栓形成的犬之间的转归相似。在 21 只存在门静脉血栓形成的犬中，有 4 只（19%）的超声检测到了血栓。
在本研究中，与肝脏疾病、非肝脏肿瘤和其他腹部或系统性疾病相比，胰腺炎犬的门静脉血栓形成患病率更高。胰腺炎犬应仔细进行影像学评估。与超声相比，CT 血管造影是诊断犬门静脉血栓形成的首选影像学方法。
