Table 2 Execution speed of the real-time software
From: Open-source, small-animal magnetic resonance-guided focused ultrasound system
Action | Mean execution time (ms) | Purpose |
|---|---|---|
Initialize function generator | 1885 ms | Performed once before each temperature-controlled sonication, this action opens communication between the host PC and the ultrasound function generator and configures the function generator with the desired output parameters for sonication. |
Read in image | 42 ms | Time to open the raw MR data (.fid) file and reconstruct the magnitude and phase data into an image for thermometry. |
Compute temperature map | 39 ms | Time to construct a temperature map with baseline subtraction of image phases after new data has been read. This timing includes drift correction with subtraction of phase from a reference ROI. |
Output voltage to function generator | 1 ms | Time to evaluate PID equation based on current focal temperature and system state and send V out to the function generator. |