General Concepts 8 min read
Classification Of Epithelial Tissues
Epithelial tissues are classified according to the shape of the cells and number of the cell layers formed . Cell…
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General Concepts 5 min read
Epithelial Tissue
Most epithelial tissues are essentially large sheets of cells covering all the surfaces of the body exposed to the outside…
General Concepts 3 min read
What is Human Body Tissue? – Definition, Types & Examples
What is Human Body Tissue If you were to try to explain to someone what your body is made of,…
General Concepts 3 min read
How many cells are in the human body?
Have you ever wondered how many cells your body is made up of? You are not alone. Scientists are still debating the…
General Concepts 2 min read
What is a cell?
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They…
General Concepts 2 min read
Reconstruction Methods
As discussed earlier, SPECT combines conventional nuclear medicine image techniques and methods for image reconstruction from projections. Aside from radiopharmaceuticals…
General Concepts 2 min read
Special Collimator Designs for SPECT Systems
Similar to conventional nuclear medicine imaging, parallel-hole collimators (Figure 13.10a) are commonly used in camera-based SPECT systems. As described earlier,…
General Concepts 3 min read
Novel SPECT System Designs
There are several special SPECT systems designs that do not fit into the preceding two general categories. The commercially available…
General Concepts 2 min read
Camera-Based SPECT Systems
The most popular SPECT systems are based on single or multiple scintillation cameras mounted on a rotating gantry. The successful…
General Concepts 3 min read
Multidetector SPECT System
The first fully functional SPECT imaging acquisition system was designed and constructed by Kuhl and Edwards [Kuhl and Edwards, 1963,…
General Concepts 1 min read
SPECT Instrumentation
A typical SPECT system consists of a single or multiple units of radiation detectors arranged in a specific geometric configuration…
General Concepts 3 min read
Physical and Instrumentation Factors that Affect SPECT Images
There are several important physical and instrumentation factors that affect the measured data and subsequently the SPECT images. As described…