Question
How do I get the BQI for my machine according to IAEA TRS-398 for the LUT Correction in myQA?
Answer
In order to use the LUT correction to apply gantry angle correction in myQA Patients, you first need to define your BQI according to IAEA TRS-398 for your machine in the Platform of myQA.
Method 1
Get the value for your BQI according to IAEA TRS-398 by getting the ratio between your TPR 20 and TPR 10 for a 10x10 field.
Method 2
If you do not have TPR data, you can get this value from your PDD 10x10 curve by using the formula below.
Method 3
If you are a myQA Accept User, you can get your BQI value according to IAEA TRS-398 by applying the IAEA TRS-398 analysis parameter for Photon Depth Dose curves and then the value will be available in the numerical analysis section.
