Question 1

In ____, computer software is used as a tool to provide additional information to the radiologist and other related individuals in order to make a diagnosis.

Accepted Answer

CAD (computer-aided diagnosis) is a type of software used to assist radiologists and other medical professionals in making a diagnosis. It uses algorithms and machine learning to analyze medical images and provide additional information or highlight areas of concern.

Question 2

Image processing is designed to optimize the quality of the output, but it should be remembered that sub-optimal image processing and display has the potential to result in image degradation and ____________________.

Accepted Answer

The answer of Image processing is designed to optimize the...

Question 3

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

Accepted Answer

This describes the imaging technique of digital tomosynthesis, in which multiple low-dose X-ray images are taken at different angles and reconstructed into a 3D image.

Question 4

____ uses rule-based methods and other approaches such as discriminant analysis, artificial neural networks, and the decision-tree method to distinguish between normal and abnormal patterns based on features obtained in quantitation.

Accepted Answer

The answer of ____ uses rule-based methods and other approaches...

Question 5

Which of the following involves at least three steps to distinguish between lesions and normal anatomical structures?

Accepted Answer

The answer of Which of the following involves at least...

Question 6

The X-ray tube travels ____ during the exposure to acquire data while the image detector remains stationary.

Accepted Answer

The X-ray tube moves in an arc during the exposure to acquire data, allowing for a comprehensive scan while the image detector remains stationary. This movement is typical in certain types of computed tomography (CT) and other specialized imaging systems, enabling the capture of detailed images from various angles.

Question 7

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

Accepted Answer

Digital mammography with an iodinated contrast medium enhances the visualization of angiogenesis, which is the formation of new blood vessels. This is particularly useful in identifying areas of increased blood flow that may indicate the presence of tumors.

Question 8

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

Accepted Answer

The answer of The detector system consists of a thin...

Question 9

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.

Accepted Answer

The answer of Picture archiving and ____________________ systems are now...

Question 10

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.

Accepted Answer

The answer of If the radiologist needs a lighter or...

Question 11

When X-rays fall upon the __________________ layer, an electric charge is released and readout using an electric field.

Accepted Answer

The answer of When X-rays fall upon the __________________ layer,...

Question 12

The ____________________ is central to a DM imaging system.

Accepted Answer

The answer of The ____________________ is central to a DM...

Question 13

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.

Accepted Answer

The answer of Mammography must be able to show the...

Question 14

____ include filtering baser, Fourier analysis, artificial neural networks, wavelet transform, etc., to enhance and extract lesions.

Accepted Answer

The mentioned techniques in the question are all different image processing algorithms. CAD (Computer Aided Detection) refers to a specific type of algorithm used for detecting specific features or patterns in medical images. Quantitation is a measurement technique used for determining concentrations or amounts of substances in a sample. Digital tomosynthesis is a medical imaging technique that creates 3D images of the breast tissue.

Question 15

Peripheral equalization displays lesion details well and preserves the peripheral information in the surrounding breast, but there may be a flattening of the image contrast in the ____________________ portions of the image.

Accepted Answer

The answer of Peripheral equalization displays lesion details well and...

Question 16

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

Accepted Answer

Scout images are obtained before administering iodinated contrast medium to assess the breast's initial condition, serving as a baseline for comparison with subsequent contrast-enhanced images.

Question 17

Film is processed using a chemical processor to render the latent image ____________________.

Accepted Answer

The answer of Film is processed using a chemical processor...

Question 18

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

Accepted Answer

The answer of Which of the following allows visualization of...

Question 19

____ 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.

Accepted Answer

Digital tomosynthesis is a technique that uses conventional tomography principles to create tomographic images that enhance the visibility of lesions by blurring out structures above and below the layer of interest. This technique is especially useful in breast imaging, where it can improve lesion detection and characterization. CAD systems, quantitation, and discriminant analysis are not directly related to the principles of conventional tomography and digital tomosynthesis.

Question 20

The scintillator is made up of cesium iodide (CsI) activated by ____________________.

Accepted Answer

The answer of The scintillator is made up of cesium...

Quiz 7: Digital Mammography