Interview results for comparison ECG over CHART questions and CHART as a start point for ECG questions
| Interview question for ECG over CHART | Answer | ||||
| Yes (Improve) | No (not-improve) | Summary | |||
| ORC | RC | ORC | RC | ||
| When comparing a patient’s CHART#1 report to the ECG-only report, your understanding of the patient’s cardiac status: | 70.4% | 64.4% | 29.6% | 35.6% | CHART improves the understanding of patient cardiac status in 64%–70% and increases the certainty of referral decision in 80%. |
| Did CHART#1 help you to better understand the cardiac status of the patient, compared with ECG-only? | 76.0% | 76.6 | 24.0% | 23.4% | |
| Were you more certain of your decision with CHART#1 then with the ECG-only report? | 79.9% | 79.9% | 20.1% | 20.1% | |
| Would you change any part of your initial ECG-only diagnosis after comparing it to CHART#1? | 20.3% | 18.8% | 79.7% | 81.2% | ORC and RC change their ECG-based referral based on the CHART report 19%–22% |
| Did you change the Send/Don’t decision in CHART#1 from ECG-only? | 22.4% | 19.5% | 77.6% | 80.5% | |
| Did the “Send Priority” change in CHART#1? | 49.1% | 48.7% | 50.9% | 51.3% | In case of consistent ‘Send’ decision from ECG to CHART, CHART change the referral priority in 49%. |
| Did the Treatment Options in CHART#1 change? | 14.7% | 9.3% | 85.3% | 90.7% | In case of consistent ‘Don’t’ decision from ECG to CHART, CHART changed the watch option priority 11%–16%. |
| Did the Watch option in CHART#1 change? | 16.1% | 11.7% | 83.9% | 88.3% | |
| Interview Question for CHART as a start point for ECHO | Yes | No | Summary |
| Does Echo confirm CHART results? | 94.1% | 5.9% | In 94% of cases the CHART diagnosis was confirmed by the ECHO examination |
| Did CHART provide appropriate start point for examination? | 98.7% | 1.3% | RC found CHART as useful to determining an appropriate start point in 98% |
| Did CHART help provide a better understanding of patient cardiac status compared with ECG-only analysis? | 97.7% | 2.3% | CHART provides a better understanding of patient cardiac status in 97.7% compared with ECG. |
CHART, Cardio-HART; ECHO, echocardiography; ORC, over-reading cardiologist; RC, referral cardiologist.