Taylor Colin J, Simon Bradley T, Stanley Bryden J, Lai Grace P, Thieman Mankin Kelley M
Department of Small Animal Clinical Sciences, Texas A&M University, College Station, Texas.
Michigan State University, East Lansing, Michigan.
Vet Radiol Ultrasound. 2020 Jan;61(1):10-15. doi: 10.1111/vru.12813. Epub 2019 Oct 1.
Previous studies have demonstrated evidence that normal reference ranges for radiographic vertebral heart scale values can vary among dog breeds. The purpose of this retrospective, observational study was to determine whether the normal vertebral heart scale values published by Buchanan and Bücheler for lateral radiographs are applicable to the Norwich terrier. Secondary objectives were to determine if clinical signs of respiratory disease, age, sex, weight, body condition score, recumbency, or thoracic depth-to-width ratio had any influence on vertebral heart scale measurements in this breed. The electronic medical record systems of two universities were reviewed and Norwich terriers were included in the study if they had orthogonal thoracic radiographs performed and no historical or radiographic evidence of cardiopulmonary disease. A vertebral heart scale was calculated for each patient. Sixty-one client-owned, Norwich terrier dogs with no clinical signs of cardiovascular disease were evaluated. The vertebral heart scale for Norwich terriers without evidence of cardiac disease (10.6 ± 0.6) was found to be significantly greater than the canine reference value of 9.7 ± 0.5 initially established by Buchanan and Bücheler. No significant correlation was found between clinical signs of respiratory disease, sex, age, thoracic depth-to-width ratio or lateral recumbency, and vertebral heart scale. Norwich terriers with a body condition score ≥6 had a significantly higher vertebral heart scale than those with a body condition score ≤5. Breed-specific ranges and body condition scores need to be considered when interpreting vertebral heart scale values for Norwich terriers.
以往的研究已证明，不同犬种的放射学椎体心脏评分值正常参考范围可能有所不同。这项回顾性观察研究的目的是确定布坎南和比歇勒公布的侧位X线片正常椎体心脏评分值是否适用于诺威奇梗犬。次要目标是确定呼吸系统疾病的临床症状、年龄、性别、体重、身体状况评分、卧位或胸廓深宽比是否对该犬种的椎体心脏评分测量有任何影响。对两所大学的电子病历系统进行了审查，若诺威奇梗犬进行了胸部正位X线片检查且无心肺疾病的病史或影像学证据，则纳入本研究。为每位患者计算椎体心脏评分。对61只无心血管疾病临床症状的客户拥有的诺威奇梗犬进行了评估。发现无心脏病证据的诺威奇梗犬的椎体心脏评分（10.6±0.6）显著高于布坎南和比歇勒最初确定的犬类参考值9.7±0.5。在呼吸系统疾病的临床症状、性别、年龄、胸廓深宽比或侧卧位与椎体心脏评分之间未发现显著相关性。身体状况评分≥6的诺威奇梗犬的椎体心脏评分显著高于身体状况评分≤5的犬。在解释诺威奇梗犬的椎体心脏评分值时，需要考虑特定品种的范围和身体状况评分。
