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. 2013 Jul 24;36(10):603–610. doi: 10.1002/clc.22171

Figure 2.

Figure 2

Different diagnostic strategies. Strategy 1: All patients had standard transthoracic echocardiography (sTTE) examination without prior electrocardiogram (ECG) and portable transthoracic echocardiography (pTTE) screening. Strategy 2: An ECG was obtained in all patients as an initial screening test, and sTTE was performed in patients with an abnormal ECG. Strategy 3: pTTE was used as an initial screening test instead of an ECG, and patients with abnormal pTTE were referred for sTTE. Strategy 4: Patients with an abnormal ECG had sTTE, but patients with a normal ECG had pTTE. The indication of sTTE depended on pTTE findings. Strategy 5: High‐risk patients had sTTE without any screening test. Low‐risk patients had an ECG, and patients with an abnormal ECG were referred for sTTE. Strategy 6: Similar to strategy 5, screening was performed only in low‐risk patients, but pTTE was used instead of an ECG. Strategy 7: pTTE was performed prior to sTTE in high‐risk patients. In low‐risk patients, only patients with abnormal results of an ECG and pTTE were referred for sTTE.