TABLE 6.

Performance results of ASD detection before vs after refinement.

View	Accuracy	Recall	Precision	Specificity	F1 score
subAS (95% CI)	0.8958 (0.8912–0.9005)/0.9030	0.8755 (0.8678–0.8832)/0.8742	0.8771 (0.8694–0.8848)/0.8909	0.9106 (0.9049–0.9163)/0.9329	0.8763 (0.8762–0.8764)/0.8825
	(0.8985–0.9075) (p < 0.0001)	(0.8656–0.8828) (p < 0.0001)	(0.8827–0.8991) (p < 0.0001)	(0.9277–0.9381) (p < 0.0001)	(0.8824–0.8825) (p < 0.0001)
A4C (95% CI)	0.8220 (0.8132–0.8309)/0.8500	0.7540 (0.7375–0.7705)/0.7352	0.7601 (0.7437–0.7765)/0.8461	0.8616 (0.8515–0.8717)/0.9388	0.7570 (0.7568–0.7572)/0.7868
	(0.8418–0.8583) (p < 0.0001)	(0.7153–0.7552) (p < 0.0001)	(0.8286–0.8636) (p = 0.00)	(0.9314–0.9461) (p = 0.00)	(0.7866–0.7870) (p < 0.0001)
LPS4C (95% CI)	0.8860 (0.8798–0.8922)/0.8990	0.9080 (0.8995–0.9166)/0.9080	0.8447 (0.8344–0.8550)/0.8734	0.8687 (0.8598–0.8775)/0.9020	0.8752 (0.8751–0.8753)/0.8904
	(0.8931–0.9049) (p = 0.38)	(0.8984–0.9176) (p < 0.0001)	(0.8626–0.8842) (p < 0.0001)	(0.8935–0.9106) (p < 0.0001)	(0.8902–0.8905) (p = 0.62)
Sax-basal (95% CI)	0.8758 (0.8693–0.8824)/0.8813	0.9058 (0.8965–0.9151)/0.9005	0.8013 (0.7894–0.8132)/0.8203	0.8567 (0.8478–0.8656)/0.8808	0.8504 (0.8502–0.8505)/0.8585
	(0.8750–0.8877) (p < 0.0001)	(0.8897–0.9113) (p = 0.0016)	(0.8071–0.8335) (p < 0.0001)	(0.8717–0.8898) (p < 0.0001)	(0.8584–0.8587) (p < 0.0001)
Mean	0.8699/0.8833	0.8608/0.8545	0.8208/0.8577	0.8744/0.9136	0.8397/0.8546
Case-level	0.9888/0.9897	0.8381/0.9143	0.8786/0.9318	0.9214/0.9563	0.9072/0.9505

subAS, subcostal atrium septum; A4C, apical four-chamber; LPS4C, low parasternal four-chamber. A p-value (p < 0.05) indicates statistically significant. Numbers in bold font indicate better performance in each category.