title: A low-cost simulator for testing the respiratory gating function of the Brattle Physiological Synchronizer.
abstract: Occasionally during the use of a synchronizer, faulty operation is obtained. In most cases this is due to defective patient electrode connections. In some instances, however, it is due to instrument failure. To determine whether the instrument is operating properly, one needs a device that will simulate a normal patient, as seen by the equipment through its patient leads. In the case of cardiac synchronization, a number of simulators are currently being marketed. For respiratory gating, however, no simulator appears to be available. This article describes a simple two-dollar device that can be used to simulate the patient as seen by the Brattle Synchronizer during operation in the respiratory mode. The device is convenient to use and provides excellent operation.
mesh_terms: D006801:Humans; D008954:Models, Biological; D011877:Radionuclide Imaging / Q000295:instrumentation*; D012119:Respiration