-
Doubling the matrix______ the number of pixels in
quadruples
-
Which of following types of studies has the greatest ability to be manipulated TEMPORALLY to suite different clinical requirements?
list mode
-
How well an image is sampled depends on adjusting what?
pixel size
-
In gated cardiac acquisition
each cardiac cycle is divided into multiple frames
-
Matrix size refers to:
number of pixels
-
For better resolution of smallest objects in the FOV, an ideal choice of pixel size would be:
1/3rd of the system spatial resolution
-
In word mode acquisition, each pixel can hold a maximum of how many counts?
65,535
-
Software zoom magnifies image by:
pixel replication
-
An acquisition zoom factor of 2 means:
field of view is halved
-
In byte mode acquisition, each pixel can hold a maximum of how many counts?
255
-
Images can be viewed DURING acquisition in all of the following, EXCEPT
list mode
-
Temporal (time) information of radioactivity concentration in the body can be obtained by all of the following acquisition modes, EXCEPT
static frame mode
-
How much memory is required to collect a MUGA study acquired in a 64 x 64 word mode matrix, 16 frames/cycle?
128KB
-
For a given FOV, pixel size decreases as matrix size
increases
-
Does Software zoom increases spatial resolution of objects?
no
-
A camera has a field of view of 51cm2. If a 128x128 matrix is used with a zoom factor of 1.6 what will be the new FOV?
32cm2
-
In gated cardiac acquisition:
each cardiac cycle is divided into multiple frames
-
In zoom mode acquisition, increase in spatial resolution is achieved by increasing the number of pixels in FOV.
false
-
Matrix size refers to
number of pixels
-
For better resolution of smallest objects in the FOV, an ideal choice of pixel size would be:
1/3 of the system spatial resolution
-
Software zoom magnifies image by:
pixel replication
-
The maximum number of counts A PIXEL can hold is NOT affected by the matrix size
true
-
An acquisition zoom factor of 2 means:
the FOV is halved
|
|