ARRT registry review of Image Acquisition and Evaluation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What devices can evaluate geometric blur? P. 195 | Star pattern, Slit camera, Pinhole camera. P. 232
🗑
|
||||
| In electronic imaging, what happens when image matrix size increases? P. 195 | Pixel size decreases p. 232
🗑
|
||||
| SID affects recorded detail in which way? p. 196 | Recorded detail is directly related to SID p. 233
🗑
|
||||
| The luminescent light emitted by teh PSP is transformed into the image seen on the CRT by the...? p. 197 | ADC p. 235
🗑
|
||||
| Unopened boxes of radiographic film should be stored away from radiation and in what position? p. 199 | Vertical p. 236
🗑
|
||||
| Name a few pathologic or abnormal conditions that would require an increase in exposure factors? p. 201 | Atelectasis, Paget disease, Congestive heart failure p. 238
🗑
|
||||
| The direction of electron travel in the x-ray tube is...? p. 205 | Cathode to anode p. 242
🗑
|
||||
| For the same FOV, spatial resolution will be improved using what? p. 205 | A larger matrix p. 242
🗑
|
||||
| Focal-spot blur is greatest where? p. 207 | Toward the cathode end of the x-ray beam p. 246
🗑
|
||||
| What is the correct order of radiographic film processing? p.209 | Developer, fixer, wash, dry p. 247
🗑
|
||||
| The reduction in x-ray photon intensity as the photon passes through material is termed? p. 209 | Attenuation p. 248
🗑
|
||||
| The intensity of ionizing radiation decreases as? p. 211 | Distance from the source of radiation increases p. 250
🗑
|
||||
| Diagnostic x-rays are generally associated with? p. 210 | High frequency and short wavelength p. 248
🗑
|
||||
| What has the widest dynamic range? p. 213 | CR p. 253
🗑
|
||||
| What is the purpose of the thin layer of lead that is often located in the rear portion of an IP? p. 213 | To prevent scattered radiation fog p. 252
🗑
|
||||
| A focal-spot size of .3 mm or smaller is essential for? p. 214 | Magnification radiography p. 254
🗑
|
||||
| How is OID realated to recorded detail? p. 215 | Radiographic detail is inversely related to OID p. 255
🗑
|
||||
| The relationship between the height of a grid's lead strips and teh distance between them is referred to as grid what? p. 217 | Ratio p. 258
🗑
|
||||
| What requires two exposures to evaluate focal-spot accuracy? p. 217 | Slit camera p. 257
🗑
|
||||
| In digital imaging, as DEL size decreases...? p. 216 | Spatial resolution increases p. 256
🗑
|
||||
| A decrease in kilovoltage will result in? p. 218 | A decrease in optical density p. 260
🗑
|
||||
| Why is a very short exposure time essential in chest radiography? p. 220 | To minimize involuntary motion p. 263
🗑
|
||||
| In digital imaging, TFT DEL size is related to? p. 221 | Spatial resolution p. 264
🗑
|
||||
| The purpose of the electroconductive layer of a CR PSP plate is to? p. 221 | Facilitate transportation through the scanner/reader p. 265
🗑
|
||||
| To produce a just perceptible increase in radiographic density, the radiographer must increase the? p. 222 | mAs by 30% p. 265
🗑
|
||||
| When involuntary motion must be considered, the exposure time may be cut in half if the kilovoltage is? p.223 | Increased by 15% p. 267
🗑
|
||||
| Which interaction is responsible for producing the most x-ray photons at the x-ray tube target? p. 224 | Bremsstrahlung p. 268
🗑
|
||||
| The line-focus principle expresses the relationship between? p. 225 | The actual and the effective focal spot p. 270
🗑
|
||||
| Exposed silver halide crystals are changed to black metallic silver by the? P. 226 | Reducers p. 271
🗑
|
||||
| As window level increases...? p. 229 | Brightness increases p. 273
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
dalanham88
Popular Radiology sets