COMPARISON OF DIGITAL AND CONVENTIONAL MAMMOGRAPHY - A ROC STUDY OF 270 MAMMOGRAMS

被引：30

作者：

NAB, HW ^{[1
]}

KARSSEMEIJER, N ^{[1
]}

VANERNING, LJTHO ^{[1
]}

HENDRIKS, JHCL ^{[1
]}

机构：

[1] UNIV HOSP NIJMEGEN,DEPT DIAGNOST RADIOL,POB 9101,6500 HB NIJMEGEN,NETHERLANDS

来源：

MEDICAL INFORMATICS | 1992年 / 17卷 / 02期

关键词：

DIGITAL MAMMOGRAPHY; MONITOR READING; OBSERVER PERFORMANCE; RECEIVER OPERATING CHARACTERISTIC (ROC) ANALYSIS;

D O I：

10.3109/14639239209085015

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Observer performance tests were conducted to study the visibility of malignancies in digital mammography. Detectabilities of tumours and of microcalcifications were studied separately. For this purpose two sets of images were used, one for tumours consisting of 150 mammograms and one for microcalcifications containing 120 mammograms. Images were digitized at a resolution of 2048 x 2048 pixels using a 12-bit CCD camera. Conventional film mammograms were read on a lightbox, whereas digital mammograms were viewed on a high-resolution monitor. Two experienced radiologists read both sets independently, and ranked their judgements about the presence or absence of tumours or microcalcifications on a confidence-rating scale. Results were evaluated using receiver operating characteristic (ROC) analysis. No statistical differences were found between judgements based on conventional and digitized mammography.

引用

页码：125 / 131

页数：7

共 25 条

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