The Anzai AZ-733VI supports both phase & amplitude gating and comes with dual respiratory sensors that can be optimized for multi-modality use or patient dependent.
The Anzai gating system clinical workflow is identical in set-up for all modalities.
The Respiratory Gating System AZ-733VI uses one of two types of respiratory sensors, either the Load Cell (standard component) or the Laser Sensor (optional component)which can be fixed directly to or near to a patient, and detects the respiratory motion changes.
The signal from the sensor is primarily amplified at the Amp Box which is attached to each Respiratory Sensor and sent to the Sensor Port as an analog signal.
At the Sensor Port, the analog signal is coarsely adjusted manually, converted to digital signal, smoothed by moving-average method and processed to detect a respiratory phase. Then, as a respiratory information, the respiratory waveform and the respiratory phase are sent to the Application on the Personal Computer via the Relay Box.
The Application performs the fine adjustment of the selected respiratory waveform by the user manually or automatically. The user also sets a Gate signal output condition and selects a mode for the method of generating Gate signal, which is output to external equipment (image diagnostic equipment such as a whole body CT equipment, linear accelerator system and radiotherapy equipment).
Once the patient is positioned on the imaging/treatment couch, we fix the Anzai belt with load cell to the patient or set the laser sensor. While still next to the patient, we set the respiratory waveform using rotary dials on the Sensor Port.
Once the waveform is established we can move to the control room and ensure the gate setting is correct on the Anzai Gating Application, the final stage is to lock in the settings and enable the gate output to the imaging/treatment machine.
