Kim Doyeon, Noh Daji, Oh Taeho, Lee Kija
College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea.
J Vet Med Sci. 2018 Sep 13;80(9):1380-1384. doi: 10.1292/jvms.18-0216. Epub 2018 Aug 7.
The purpose of this study was to determine the relationships among body condition score (BCS), radiography, and computed tomography (CT), and to establish a method for body fat assessment on CT in dogs. Thirty eight Beagles with 2 to 7 BCS were examined. Subcutaneous fat thickness (ST) on radiograph and body area (BA), total fat area (TA), subcutaneous fat area (SA), and visceral fat area (VA) on CT were measured at the level of L3 and L6 vertebra. Ratios of each value to the L6 length were obtained (ST, TA, SA, VA) and the correlations with BCS were estimated. The value of VA/SA, VA/TA, TA/BA, VA/BA, and SA/BA were selected for measuring fat and the correlations with BCS were estimated. The ST, TA, SA, and VA were significantly correlated with BCS, and the TA and SA were significantly correlated with ST. At the level of L3, TA and VA had stronger relationships with BCS than at L6 while SA had a higher correlation with BCS at L6. The TA/BA, VA/BA, and SA/BA were significantly correlated with BCS, and the upper limits were 15.11, 6.31, and 8.92%, respectively. Our results showed that CT could be useful to assess body fat and TA/BA, VA/BA, and SA/BA are suitable criteria for measuring fat on CT. In addition, L3 was a more suitable location for evaluating total and visceral fat, and L6 was more suitable for evaluating subcutaneous fat.
本研究的目的是确定身体状况评分（BCS）、X线摄影及计算机断层扫描（CT）之间的关系，并建立犬CT体脂评估方法。对38只BCS为2至7分的比格犬进行了检查。在第3腰椎和第6腰椎水平测量X线片上的皮下脂肪厚度（ST）以及CT上的体面积（BA）、总脂肪面积（TA）、皮下脂肪面积（SA）和内脏脂肪面积（VA）。获得各值与第6腰椎长度的比值（ST、TA、SA、VA），并评估其与BCS的相关性。选择VA/SA、VA/TA、TA/BA、VA/BA和SA/BA的值来测量脂肪，并评估其与BCS的相关性。ST、TA、SA和VA与BCS显著相关，TA和SA与ST显著相关。在第3腰椎水平，TA和VA与BCS的关系比在第6腰椎水平更强，而SA在第6腰椎水平与BCS的相关性更高。TA/BA、VA/BA和SA/BA与BCS显著相关，上限分别为15.11%、6.31%和8.92%。我们的结果表明，CT可用于评估体脂，TA/BA、VA/BA和SA/BA是CT测量脂肪的合适标准。此外，第3腰椎是评估总脂肪和内脏脂肪的更合适位置，第6腰椎更适合评估皮下脂肪。
