There are several methods to evaluate objectively the quality of a digital image. For digital mammography, objective quality assessment must be performed without references. In a previous study, the authors investigated the use of a normalized anisotropic quality index (NAQI) to assess mammography images blindly in terms of noise and spatial resolution. Since the NAQI is used as a quality metri...

Digital offers clear logistical advantages, such as the ability to integrate mammography images and reports with the rest of the digital radiology enterprise. And all major trials completed to date have concluded that clinically, digital is at least equivalent to, if not statistically better than, screen-film. With the high spatial resolution so critical for detecting masses and microcalcificat...

A questionnaire survey about mammography in Hokkaido was mailed to 121 facilities from August to September 2009. We surveyed the conditions of digital mammography with regard to quality control (QC) and average glandular dose at 79 facilities in Hokkaido in 2009, and the results of the survey were compared with those of 2004. We found that digital mammography techniques were widely used across ...

Purpose One of the advantages of digital mammography is the ability to acquire a mammography image with a larger contrast range. With this advantage comes the tradeoff of how to display this larger contrast range. Laser printed film, and video display both have smaller dynamic ranges than standard mammography film-screen systems. This work examines performance and preference studies for display...

Digital offers clear logistical advantages, such as the ability to integrate mammography images and reports with the rest of the digital radiology enterprise. And all major trials completed to date have concluded that clinically, digital is at least equivalent to, if not statistically better than, screen-film. With the high spatial resolution so critical for detecting masses and microcalcificat...

BACKGROUND Film mammography has limited sensitivity for the detection of breast cancer in women with radiographically dense breasts. We assessed whether the use of digital mammography would avoid some of these limitations. METHODS A total of 49,528 asymptomatic women presenting for screening mammography at 33 sites in the United States and Canada underwent both digital and film mammography. A...

From 03/2009 to 09/2009, 50 patients underwent digital Full Field Mammography (detector: resolution 70lm) (Fa. Siemens) and, after diagnosis and preoperative wire localization, digital Full Field Mammography (detector: resolution 50lm) (Fa. FujiFilm) with the same exposure parameters. Five investigators retrospectively determined the diagnosis after the operation from randomly distributed medio...

Digital mammography is an irreversible evolution which will gradually replace analog mammography. Detector technology differs among manufacturers. Expected clinical advantages are improved diagnostic performances, improved reproducibility, dose reduction, dedicated applications (CAD), archiving and telemammography. Limiting problems are at cost, reorganization of the breast imaging unit and the...