Exam 7: Digital Mammography

After obtaining which image of the breast are several iodinated contrast images (contrast medium-enhanced) recorded?

The overall diagnostic accuracy of digital and film mammography as a means of screening for breast cancer is similar, but ____________________ mammography is more accurate in women under the age of 50 years, women with radiographically dense breasts, and premenopausal or perimenopausal women.

Which of the following allows visualization of both lesion detail and breast edge information but reduces image contrast?

Contrast-limited adaptive histogram equalization can also provide subtle edge information but might degrade performance in the screening setting by enhancing the visibility of nuisance information.

Digital mammography can be used in visualizing ____ by using an iodinated contrast medium.

Which cassette contains the intensifying screen and the film that has been made for use in mammographic imaging?

Digital mammography computer display monitors should be located in rooms that have ambient light of less than ____.

Two CAD systems commercially available for use in Radiology are the R2 Image Checker, R2 Technology from R2 Technology, Inc., Los Altos, California; and the CADx ____________________, CADx Medical Systems, Quebec, Canada.

During which procedure does the X-ray tube move through various angles while the detector is stationary?

If the radiologist needs a lighter or darker film or if the image contrast needs to be changed, then the technologist must perform the exam using a different set of ____________________ technique factors to demonstrate these required characteristics.

The CsI phosphor is deposited on top of the a-Si TFT array in a needle-like fashion (to reduce lateral dispersion of light in order to improve image detail) and converts X-rays into images.

The detector system consists of a thin layer of a(n) ____________________, a-Se, deposited onto a readout layer of electronics.

Which detector consists of three major components: a scintillator, photodiodes, a thin film transistor (TFT) array, and a glass support?

____ uses the principles of conventional tomography to produce tomographic images that are intended to enhance the conspicuity of lesions by blurring out structures above and below the layer of interest.

The digital output from the computer must be converted from an analog signal so that it can be displayed on a monitor workstation.

Picture archiving and ____________________ systems are now commonplace in hospitals, and the next consideration for DM is to send all the digitally acquired images to the PACS.

Mammography must be able to show the ____________________ between a lesion that is located in the breast and the normal anatomy that is around that lesion.

Which of the following algorithms enhances the sharpness of the borders of mass lesions, but may make even an indistinct mass appear more circumscribed?

The computer uses image-processing algorithms for enhancement and ____________________ of lesions.

There are two objects that are of interest in the imaging process, the diamond- and oval-shaped objects, which are located at different levels in the breast.