使用磁共振成像（MRI）测量中型犬的腰骶椎间孔比例和面积
Lumbosacral foraminal ratios and areas using MRI in medium-sized dogs.
作者信息
Reynolds D, Tucker R L, Fitzpatrick N
机构信息
Debbie Reynolds, Toronto Veterinary Emergency Hospital, 21 Rolark Drive, Toronto, ON, M1R 3B1, Canada, E-mail:
出版信息
Vet Comp Orthop Traumatol. 2014;27(5):333-8. doi: 10.3415/VCOT-13-05-0085. Epub 2014 Aug 27.
OBJECTIVE
To examine conventional magnetic resonance imaging planes of the lumbosacral foramina to obtain objective measurements of foraminal size in medium-sized (20-28 kg) normal dogs.
METHOD
Ten canine cadavers were evaluated using magnetic resonance imaging in neutral, flexed and extended position. Foraminal ratios, areas and lumbosacral angles were calculated and their relationship to body weight was evaluated.
RESULTS
Foraminal ratios were found to be independent of body weight in medium sized dogs (p >0.42). Foraminal areas were dependent on body weight (p <0.05). Flexion and extension were shown to significantly change both the foraminal ratio and area.
CLINICAL SIGNIFICANCE
Lumbosacral foraminal stenosis is common in working dogs. Foraminal ratios were evaluated in medium-sized dogs and were found to be independent of body weight, which may provide objective evaluation of surgical decompression techniques if calculated pre- and post-surgery. Foraminal areas were not independent of body weight.
目的
检查腰骶孔的传统磁共振成像平面，以获取中型（20 - 28千克）正常犬类椎间孔大小的客观测量值。
方法
使用磁共振成像对10只犬类尸体在中立位、屈曲位和伸展位进行评估。计算椎间孔比率、面积和腰骶角，并评估它们与体重的关系。
结果
发现中型犬的椎间孔比率与体重无关（p > 0.42）。椎间孔面积与体重有关（p < 0.05）。屈曲和伸展均显示会显著改变椎间孔比率和面积。
临床意义
腰骶椎间孔狭窄在工作犬中很常见。对中型犬的椎间孔比率进行了评估，发现其与体重无关，如果在手术前后进行计算，这可能为手术减压技术提供客观评估。椎间孔面积与体重有关。
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