Image Production AEC

How does the presence of contrast media in a region of interest affect AEC operation during a radiographic procedure?

Increased exposure time

What is a consequence of improperly calibrated AEC sensors during a pelvis radiograph?

Over or underestimation of required exposure

Which AEC detector should be activated for a right shoulder xray?

Center AEC to align with right shoulder

Which of the following factors can lead to AEC mis operation resulting in an underexposed image?

Incorrect positioning of the body part over AEC detector

Incorrect positioning of the body part relative to the detector can cause the AEC to terminate the exposure prematurely, leading to a _ image.

Underexposed

When would a recalibration of the AEC system be required?

After replacing the xray tube

A quality control test of the consistency of exposure across different patient sizes will assess the function of what system?

AEC

What is the best practice when using AEC for a PA chest radiograph on a patient with severe kyphosis?

Adjust selection of AEC detectors to better align with the anatomical changes

What consideration should be utilized when using AEC for a morbidly obese patient?

Increase AEC density/sensitivity

What impact does activating the AEC for a lateral lumbar spine radiograph have on image quality compared to manual settings?

AEC can achieve more consistent images

Which two of the following are ways a radiologic technologist can adjust the AEC settings for pediatric patients to avoid overexposure?

1. Decrease the sensitivity of AEC detectors

2. Increase the sensitivity of AEC detectors

3. Extend the backup time

4. Utilize a lower energy xray beam

Increase the sensitivity of AEC detectors

Utilize a lower energy xray beam

How does increasing the kVp settings affect the exposure time when using AEC?

Decreases exposure time

What would be the best approach to configure the AEC for a patient undergoing a chest xray who has a pneumothorax?

Decrease sensitivity of the affected side’s AEC detector

How does the AEC system adjust when imaging thicker body parts?

Increases exposure time

In situations where a prosthetic device is present, which two options would a technologist have when using AEC?

1. Disable AEC and manually set exposure parameters

2. Position the device over the AEC detectors

3. Avoid positioning the device directly over the AEC detectors

4. Increase the sensitivity of the AEC detectors

Disable AEC and manually set exposure parameters

Avoid positioning the device directly over the AEC detectors