Gating is the synchronization of imaging with a phase of the cardiac or respiratory cycles.
A variety of means for detecting these cycles can be used, such as the ECG, peripheral pulse, chest motion, etc. The synchronization can be prospective or retrospective.

A joint scintigraphy is a nuclear medical study to detect active joint disease (for example arthritis, osteomyelitis and synovitis). Joint scintigraphies are possible with different radiopharmaceuticals as 99mTc-Tc04, 99mTc nanocolloid (NC) or 99mTc-IgG. Joint scintigraphy is a procedure for a specific purpose rather than a routine test.

See also Bone Scan, Bone Marrow Scintigraphy and Multiphase Bone Scintigraphy.

A perfusion scintigraphy records the organ blood circulation usually directly or during the first two minutes after the injection of a radioactive tracer.
Different types of radiopharmaceuticals are used, depending on the target organ.

Typical perfusion scans include:
See also First Pass Scintigraphy, Myocardial Scintigraphy, Heart Scintigraphy, Whole Body Scintigraphy, and Flare Phenomenon.