Small Animal Teaching Hospital, University of Liverpool, Leahurst, Neston, Cheshire CH64 7TE, UK.
Vet Rec. 2012 Jan 7;170(1):20. doi: 10.1136/vr.100041. Epub 2011 Oct 20.
The objective of this study was to assess whether the frontal sinuses in dogs with aspergillosis and of breeds typically affected by this condition were deeper at a more caudal location. CT scans of the head performed at the Small Animal Teaching Hospital, University of Liverpool, between April 2007 and March 2009 for dogs diagnosed with aspergillosis (group 1) and unaffected dogs of similar breeds (group 2) were selected for study. Sinus depth was measured at four standardised locations from reconstructed images of these CT scans. Data were compared for differences in sinus depth between groups and between landmarks. No significant difference was found between measurements within individual dogs or for each of the various landmarks between groups. Difference in depth of the sinuses between landmarks was significant (P<0.001). Sinus depth was significantly greater at the more caudal landmarks and was shallowest at the previously recommended landmark for sinus entry. In 54 per cent of dogs, the frontal sinus depth measured less than or equal to 2 cm at one or more of the landmarks. Sinus entry at the deepest point will reduce the risk of accidentally damaging underlying structures. This may be approximately 1 cm caudal, in breeds of dog that typically develop aspergillosis, to a previously suggested landmark.
本研究旨在评估患有曲霉菌病的犬和通常易受该疾病影响的犬种的额窦在更靠后的位置是否更深。在 2007 年 4 月至 2009 年 3 月期间，利物浦大学小动物教学医院对被诊断患有曲霉菌病的犬（第 1 组）和具有相似品种但未受影响的犬（第 2 组）进行了头部 CT 扫描，选择这些犬的扫描图像进行研究。在这些 CT 扫描的重建图像上，从四个标准位置测量窦腔深度。比较了两组之间和各个标志点之间窦腔深度的差异。未发现个体犬之间或各标志点之间的测量值存在显著差异。标志点之间窦腔深度的差异具有统计学意义（P<0.001）。在更靠后的标志点，窦腔深度显著更大，而之前推荐的窦腔入口标志点深度最浅。在 54%的犬中，一个或多个标志点的额窦深度小于或等于 2 厘米。在通常易发生曲霉菌病的犬种中，在最深点进入窦腔将降低意外损伤下方结构的风险。对于之前建议的标志点，向后约 1 厘米处可能是窦腔的最深处。
