For interventional MRI-guided applications image reconstruction should be without delay to avoid unwanted failure. Since latency is unavoidable it is very important to know it beforehand. For this reason, we present a new method to measure the latency of real-time MRI systems.
The main components are two inexpensive optical cameras. No modification of the scanner system is required. Different validations show that our method works reliably. Results from our RT MRI system provide insight into the latency of different protocols. We believe that we have found an inexpensive, easy, and robust way of determining RT MRI latency.
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