It is accepted that a pinhole collimator should be used if the object is very small, and the cone-beam collimator should be used if the object is larger. This ...
People also ask
What is the purpose of pinhole SPECT?
What are the different types of SPECT scans?
What are the different types of SPECT collimators?
Is there a difference between SPECT and Spect CT?
It is accepted that a pinhole collimator should be used if the object is very small, and the cone-beam collimator should be used if the object is larger. This ...
Criteria is presented to determine which collimation geometry is more advantageous in terms of spatial resolution and detection sensitivity in single photon ...
Pinholes and slits (at least those that see the complete transverse FOV) have a sampling profile similar to that of cone-beam collimators and require the same ...
Pinhole SPECT images are reconstructed using a modified cone-beam algorithm developed from a two-dimensional fanbeam filtered backprojection algorithm.
Jun 1, 2024 · We are developing a Dynamic Cardiac SPECT system at the Massachusetts General Hospital with a stationary multiple-pinhole geometry.
The computer simulations based on the analytical projectors were developed by ray-tracing method for cone-beam CT and voxel-driven method for pinhole SPECT of ...
Jan 1, 2011 · This study was aimed at developing an eficient simulation technique with an ordinary PC.The work involved derivation of mathematical operators, ...
The objective of this study is to propose a novel super-resolution (SR) reconstruction algorithm with two acquisition methods for cone-beam SPECT with low- ...
An image reconstruction algorithm for cone beam imaging geometry for rotating single pinhole SPECT will be modified to accommodate simultaneous imaging from ...