Image Post-Processing (CTBC 7)

Question 1

Post-processing

Answer 1

manipulation of image data after the reconstruction (processing) process is finished

Question 2

MPR are created from _______ data, not _______ data, resulting in data _______

Answer 2

Image
Scan
Loss

Question 3

MIP

Answer 3

“Maximum Intensity Projection”
Displays (within the pixel) the highest value HU from the voxel

Question 4

MinIP

Answer 4

“Minimum Intensity Projection”
Displays (within the pixel) the lowest value HU from the voxel

Question 5

SSD

Answer 5

“Shaded Surface Display”
Creates 3D rendering of surface of imaged anatomy
(Usually uses only 10% of total image data: processing/viewing is rapid)

Question 6

VR

Answer 6

“Volume Rendering”
Digital process of projecting entire data set (volume) into single 3D image

Question 7

Benefit of VR (2)

Answer 7

Allows different tissue types to be displayed with different levels of transparency
Viewing multiple layers of tissue demonstrates relationship b/w them

Question 8

Histogram Analysis

Answer 8

Provides (graph of) the frequency (“quantity”) of each HU within the area (E.g., to indicate age/stage of brain bleed)

Question 9

Agatston Score

Answer 9

Generated by Calcium Scoring the heart
> 400 is “severe” with high risk of cardiac event