Jiyad Zainab, O'Rourke Peter, Soyer H Peter, Green Adèle C
Cancer and Population Studies Group, QIMR Berghofer Medical Research Institute, Locked Bag 2000 Royal Brisbane Hospital, Brisbane, Queensland 4029, Australia.
Acta Derm Venereol. 2017 Mar 10;97(3):351-353. doi: 10.2340/00015555-2539.
Actinic keratoses (AKs) are common lesions that are usually diagnosed clinically. We sought to examine the accuracy of AK counts on digital photographs when compared with clinical examination counts. Skin sites of renal transplant recipients were examined clinically and on digital photographs by independent dermatologically-trained examiners. Specificity, sensitivity and Kendall's tau-b correlation coefficient were calculated based on exact photographic AK counts as well as counts with ± 1 AK tolerance. When 138 skin sites with 305 clinical AK counts were examined for total count ± 1 AK, the sensitivity and specificity of photography was 95% and 100%, respectively. There was significant positive correlation between AK counts on photographs and clinical examination (Ƭb = 0.537) and correlation was even higher for total count ± 1 AK (Ƭb = 0.758). The results show moderate to strong concordance between AK counts on digital photographs and on clinical examination.
光化性角化病（AKs）是常见的皮损，通常通过临床诊断。我们试图检验数码照片上AK计数与临床检查计数相比的准确性。由经过皮肤科培训的独立检查人员对肾移植受者的皮肤部位进行临床检查和数码照片检查。基于精确的照片AK计数以及有±1个AK容差的计数来计算特异性、敏感性和肯德尔tau-b相关系数。当对138个皮肤部位的305个临床AK计数进行总计数±1个AK的检查时，摄影的敏感性和特异性分别为95%和100%。照片上的AK计数与临床检查之间存在显著正相关（Ƭb = 0.537），对于总计数±1个AK，相关性甚至更高（Ƭb = 0.758）。结果表明数码照片上的AK计数与临床检查之间存在中度到高度的一致性。
