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近十年来,在美国对阴道涂片异常的患者多用阴道镜检。但缺少客观方法鉴定“阴道镜专家”的判断是否正确。如医生经验不足阴道镜检漏诊浸润癌,则会危害患者的生命。子宫颈摄影术是一种价廉的,能客观地把宫颈所见永久保存的一种光学仪器。可在涂片异常和宫颈癌普查时应用。器械装置:一架135照相机,加一只50mm接圈,再接上100mm的望远镜头。可使镜头与宫颈的间距最少有15cm,底片上的放大倍数也合适。镜头前装有环形闪光灯,一次闪光时间<1/2,000秒,而不致因摄影手抖动影响照相质量;强照明度能使光圈收得很少,增加景深。
In the past ten years, colposcopy has been used in patients with vaginal smear abnormalities in the United States. But the lack of objective methods to identify “colposcopy expert” judgment is correct. If the doctor lack of experience colposcopy missed invasive cancer, it will endanger the lives of patients. Cervical photography is an inexpensive optical instrument that objectively preserves the cervix permanently. Can smear abnormalities and cervical cancer screening application. Device: a 135 camera, plus a 50mm loop, then connect the 100mm telescope head. Can make the distance between the lens and the cervix at least 15cm, magnification on the film is appropriate. The front of the lens is equipped with a circular flash, a flash time <1 / 2,000 seconds, without the camera shake affect the quality of the camera; strong illumination can make the aperture less, increase the depth of field.