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Comparative Study of the Diagnostic Ability with Soft and Hard Copy Reading on Mammography with Low Contrast

Author: MiaoZuo
Tutor: ZhangWei
School: China Medical University
Course: Medical Imaging and Nuclear Medicine
Keywords: BI-RADS Soft copy Hard copy ROC curve Breast X-ray photography
CLC: R737.9
Type: Master's thesis
Year: 2009
Downloads: 21
Quote: 0
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Abstract


Objective To evaluate the soft and hard copy two read -chip performance under the diagnosis of breast cancer in the breast X-ray photography low contrast background , discuss diagnostic system diagnostic performance . Online from the PACS system to select the image of MM CR 56 , where the pathological diagnosis of 29 malignant , pathological diagnosis of hyperplastic lesions 27 . The pathological lesion maximum diameter of less than 2cm. Please read breast X -ray photography film experience for the seniority (8 years ) , middle-aged -owned (2 ) , low- years ( six months) of three groups of doctors each two , respectively, in the film , high-resolution display read diagram, will be described. For results based on the description of the BI-RADS classification . The physicians own description is given on each copy of each image . Using SPSS 13.0 statistical analysis of the results . Results for MM experienced radiologists use soft , hard copy two read piece by the ROC curve area under the AUC were 0.707,0.765 , middle - aged radiologists were 0.814,0.709 , junior doctors were 0.667,0.761 . Different years between physicians and the same year the radiologists read films the way in the same film reading breast lesion detection performance differences were not statistically significant (P> 0.05). Diagnostic performance quite different conclusions read chip way to detect breast lesions . Dense breast small early breast cancer diagnosis and screening by breast X-ray photography .

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CLC: > Medicine, health > Oncology > Genitourinary tumors > Breast tumor
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