Wilcox L A, Grimwood R E
Department of Dermatology, Wilford Hall Medical Center, Lackland AFB, TX 78236-5300, USA.
Mil Med. 1995 Sep;160(9):470-2.
Digital imaging is an alternative to 35-mm Kodachromes and may be a useful tool to the physician. The purpose of this study was to compare the quality of digital images to 35-mm images and then compare the two methods based on the ability to make the correct diagnosis. Dermatology patients were photographed with both a digital camera and a 35-mm camera. Images from 22 patients were compared and graded on four criteria (sharpness of image, contrast, depth of field, and trueness of color). Diagnoses were then made from 30 pairs of images of different patients. In all graded areas the 35-mm images scored significantly higher. The correct diagnosis was made in 69.6% of the digital images compared to 77.3% of the 35-mm images, a difference that was not statistically significant. One may conclude that digital images hold promise for present and future use in dermatology and other areas of medicine.
数字成像可替代35毫米柯达彩色胶卷，对医生而言可能是一种有用的工具。本研究的目的是比较数字图像与35毫米图像的质量，然后根据做出正确诊断的能力比较这两种方法。用数码相机和35毫米相机对皮肤科患者进行拍照。对22名患者的图像进行比较，并根据四个标准（图像清晰度、对比度、景深和色彩真实性）进行评分。然后从30对不同患者的图像中做出诊断。在所有评分区域，35毫米图像得分显著更高。数字图像的正确诊断率为69.6%，而35毫米图像为77.3%，差异无统计学意义。可以得出结论，数字图像在皮肤科及其他医学领域的当前和未来应用中具有前景。
