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A radiographic study of breed-specific vertebral heart score and vertebral left atrial size in Chihuahuas 翻译：DJ金 文献来源 Puccinelli C, Citi S, Vezzosi T, Garibaldi S, Tognetti R. A radiographic study of breed-specific vertebral heart score and vertebral left atrial size in Chihuahuas. Vet Radiol Ultrasound. 2020 Oct 27. doi: 10.1111/vru.12919. Epub ahead of print. PMID: 33111364. Abstract Although echocardiography is the gold standard for the diagnosis of cardio-structural disease, thoracic radiography is a rapid, cost-effective, and widely accessible method for evaluating cardiac size in dogs. The vertebral heart score (VHS) and the vertebral left atrial size (VLAS) are established as objective measures of cardiomegaly on thoracic radiographs. However, several studies have shown significant variations in the VHS among different breeds. The Chihuahua is predisposed to both congenital and acquired cardiac diseases. The aim of this prospective, single-center, cross sectional study was thus to evaluate the VHS and the VLAS in healthy adult Chihuahua dogs. A total of 30 Chihuahuas were included. The VHS values in our sample population of Chihuahuas were 10.0 ± 0.6 (95% range, 8.9-11.0). This was significantly greater than the canine reference value of 9.7 ± 0.5 established by Buchanan and Bücheler (P = .002). The VLAS of Chihuahuas in our study was 1.8 ± 0.2 (95% range, 1.3-2.1). This was significantly lower than the values previously reported by Malcolm et al (2.07 ± 0.25; P = .0004). The VHS and the VLAS were not influenced by sex, body weight, short or long hair, and body condition score in normal Chihuahuas. Our results indicated that breed-specific reference values for radiographic VHS and VLAS are needed. In Chihuahuas, the values found in this study can be used as a normal reference in order to help avoid overinterpretation of cardiomegaly in these dogs. KEYWORDS cardiology, dog, thoracic radiology, VHS, VLAS 摘要 虽然超声心动图是诊断心脏结构疾病的金标准，但胸部X线摄影是评估犬心脏大小的一种快速、经济有效且可广泛使用的方法。 将椎体心脏评分(VHS)和椎体左房大小(VLAS)作为胸片心脏增大的客观指标。 然而，几项研究表明，不同品种之间的VHS存在显著差异。 因此，这项前瞻性、单中心、横断面研究的目的是评估健康成年吉娃娃犬的VHS和VLA。共有30只吉娃娃被包括在内。 吉娃娃样本群体的VHS值为10.0±0.6(95%范围，8.9~11.0)。 这明显高于Buchanan和Bücheler建立的犬类参考值9.7±0.5(P=0.002)。 本研究中吉娃娃的VLA为1.8±0.2(95%范围，1.3-2.1)。 这明显低于Malcolm等人之前报道的数值(2.07±0.25；P=.0004)。 正常吉娃娃的VHS和VLA不受性别、体重、短毛或长毛和身体状况评分的影响。 我们的结果表明，放射学VHS和VLA的品种特异性参考值是必要的。 在吉娃娃中，这项研究中发现的值可以作为正常参考，以帮助避免过度解读这些狗的心脏肥大。 关键词 心脏病学；犬；胸部放射学；VHS；VLAS FIGURE 1 Right lateral thoracic radiograph showing an example of vertebral heart score measurement in a Chihuahua dog. For this dog, the vertebral heart score was 9.9 vertebrae. Technique: kVp, 55; mAs, 8.0. 图1 右侧位胸片显示一只吉娃娃犬的椎心评分测量。这只狗的椎心评分是9.9个椎骨。技术: kVp, 55; mAs, 8.0. FIGURE 2 Ventrodorsal thoracic radiograph showing an example of vertebral heart score measurement in a Chihuahua dog. For this dog, the vertebral heart score was 9.6 vertebrae. Technique: kVp, 59; mAs, 10. 图2 吉娃娃犬胸腹背位X线片显示一例脊椎心脏评分测量。这只狗的椎心评分是9.6个椎骨。技术: kVp, 59; mAs, 10. FIGURE 3 Right lateral thoracic radiograph showing an example of vertebral left atrial size measurement in a Chihuahua dog. For this dog, the vertebral left atrial size was 2.0 vertebrae. Technique: kVp, 55; mAs, 8.0. Image file created from original DICOM format file 图3 右侧位胸片显示一只吉娃娃犬的椎体左心房大小测量实例。这只狗的左心房大小是2.0个椎骨。 Note. The values are expressed in numbers of vertebral bodies. Abbreviations: LL, left lateral; RL, right lateral; SD, standard deviation; VD, ventrodorsal; VHS, vertebral heart score; VLAS, vertebral left atrial size. 注意。这些值以椎体数量表示。 缩写：LL，左侧；RL，右侧；SD，标准差；VD，腹背； VHS，椎心评分；VLAS，椎体左房大小。 |
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