5. Undock the table.
6. To prevent damage to the transducer, at the end of the working day (after cleaning the system), verify
that the transducer is dry, and cover it with a mechanical protective cover.
7. When not in use, cover the patient table with the protective table cover.
3.7. Daily Quality Assurance (DQA) Test Procedure
The DQA procedure should be conducted at the start of each day, prior to each treatment, to verify proper
operation of the Exablate Prostate system.
The instructions below provide a general outline of the DQA procedure.
The accessories required for the DQA procedure are:
◼ Phantom gel (SET000885-CE) – solid, water based, crossed linked gel mimicking Prostate tissue. This
gel is disposable.
◼ Phantom holder (ASM001513) – holds the phantom gel during DQA procedure.
◼ A single-use, disposable treatment kit (SET000546-BC-CE).
The DQA test procedure is a simulated treatment using a tissue-mimicking phantom. This phantom has the
unique property of heating due to ultrasound energy absorption, similar to that of a real tissue.
3.7.1. DQA Set Up Procedure
Prior to starting the DQA confirm:
1. Reboot the MR System if it has not been rebooted that day.
2. Power on the system (see Section 3.1).
3. Visually check the integrity of the transducer:
◼ For loose fittings or cracks
4. Check for any loose or damaged connectors or water tubes on the patient table
5. Ensure that the patient table is completely set up and ready for the patient.
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