Objective:To study the value of ZoomScope colposcopy in diagnosis of cervical diseases.Methods:378 patients with cervical diseases were examined by ZoomScope colposcopy (WALLACH 906043-SP type) from June 2002 to April 2003.The results of 378 patients by colposcopy were compared with Thin-prep Cytology Test (TCT) and histology diagnosis.Results:Colposcopy found normal transformation zone in 114 cases

cervical condyloma in 68 cases

aceto-white epithelium in 95 cases

twin signs in 65 cases

triple signs in 20 cases

cervical cancer in 4 cases

while unsatisfactory colposcopic findings accounted for l2 cases.The accuracy

specificity and sensitivity of colposcopy in evaluation of cervical diseases were 80.56%

74.60%

and 97.48%respectively.The accuracy of colposcopy in diagnosis of cervical diseases were 88.36% and 80.56% respectively as compared with TCT

histology diagnosis

and that of cervical cancer was 100.00% as compared with histology examination.Conclusion:ZoomScope colposcopy in diagnosis of cervical diseases can be accurate

reliable.When colposcopy is combined with TCT and to bospy for cervical diseases

the diagnostic accuracy rate of the precancerous lesions or earlier cervical cancer can be further improved.