Table 3.
Receiver operating characteristics
| Definition of rTMS-positive |
Error rate |
||||
|---|---|---|---|---|---|
| ≥5% | ≥10% | ≥15% | ≥20% | ≥25% | |
| PPV |
21% |
24% |
29% |
21% |
17% |
| NPV |
93% |
91% |
89% |
83% |
82% |
| Sensitivity |
90% |
80% |
60% |
30% |
10% |
| Specificity | 28% | 46% | 67% | 76% | 89% |
ROC on the correlation of repetitive navigated transcranial magnetic stimulation (rTMS) to direct cortical stimulation (DCS) for the combined group of no responses and performance errors across all mappings of this report. PPV = positive predictive value, NPV = negative predictive value. DCS represents the ground truth. In the second row information is giving at which percentage of error rate a CPS region is defined as rTMS positive. According to this threshold level, we observe different patterns of correlation with intraoperative DCS.