Webimaging. The flood uniformity image can be evaluated numerically or graphically [7]. The NEMA protocol for intrinsic flood field uniformity analyzes both differential uniformity and integral uniformity. Differential uniformity is a measure of maximum rate of change over a short distance and integral uniformity is a measure of maximum deviation. Web3 gamma camera QC test. 1.field uniformity (flood) 2.spatial resolution 3.linearity and spatial distortion. the capability of the camera to produce an image of uniform density …
Intrinsic Flood-Field Uniformity Evaluation
WebField uniformity is an important parameter for monitoring the performance of SPECT imaging systems. However, it is difficult to apply objective measures of uniformity because of the large variance associated with reconstructed images. In the proposed method, annular sampling of the SPECT uniformity image is used to reduce the noise level ... WebApr 12, 2024 · uniformity test is routinely performed as a daily quality control in a nuclear medicine department. A flood field phantom is required to perform extrinsic uniformity on a gamma camera. There are two types of flood phantom used to perform uniformity test; … option chain analysis excel sheet download
Ideal flood field images for SPECT uniformity correction
WebOct 28, 2011 · Study now. See answer (1) Copy. Daily, or every day that the camera is being used for studies on patients. "Seven different quality control procedures are … http://people.vcu.edu/~mhcrosthwait/clrs322/planarimagingqc.html WebFlood Field Uniformity A Co-57 flat source -circular or rectangular, depending on detector head shape- of 80-200 MBq (~2-5mCi) activity, for a gamma camera with small or large FOV respectively. A flood phantom, … portland to tacoma amtrak fares