一项关于操作者经验对犬胃肿瘤超声诊断准确性影响的回顾性研究。
A retrospective study into the effects of operator experience on the accuracy of ultrasound in the diagnosis of gastric neoplasia in dogs.
作者信息
Easton S
机构信息
Department of Clinical Veterinary Science, University of Bristol, Langford, North Somerset, United Kingdom.
出版信息
Vet Radiol Ultrasound. 2001 Jan-Feb;42(1):47-50. doi: 10.1111/j.1740-8261.2001.tb00903.x.
The accuracy of three diagnostic techniques in two separate time periods was examined. In the first time period, 18 dogs were referred to the University of Bristol with signs suggestive of gastric neoplasia. Of these 18 dogs, 7 had a positive diagnosis of gastric neoplasia from histopathology samples (38% prevalence). The sensitivity of ultrasound was found to be 42.9% with a specificity of 63.6%. A year later the study was repeated with 40 cases referred for investigation. Of these 40 dogs, 16 had a positive histopathologic diagnosis of gastric neoplasia (40% prevalence). At this time the sensitivity of ultrasound had increased to 81.3 % and the specificity had increased to 70.8 %. The increase in sensitivity was attributed to an increase in operator experience in the performance of the ultrasound examination. This improvement in sensitivity and experience resulted in a greater accuracy at detecting the presence of gastric neoplasia.
研究考察了两个不同时间段内三种诊断技术的准确性。在第一个时间段，18只出现提示胃肿瘤迹象的犬被转诊至布里斯托大学。在这18只犬中，7只经组织病理学样本确诊为胃肿瘤（患病率为38%）。超声检查的敏感性为42.9%，特异性为63.6%。一年后，该研究重复进行，有40例转诊接受检查。在这40只犬中，16只经组织病理学确诊为胃肿瘤（患病率为40%）。此时，超声检查的敏感性提高到了81.3%，特异性提高到了70.8%。敏感性的提高归因于超声检查操作人员经验的增加。这种敏感性和经验的提升使得检测胃肿瘤存在的准确性更高。
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