Egyptian Journal of Radiology and Nuclear Medicine

Table 6 Correlation between the PAOI and radiologic parameters of right atrium in current and related previous studies

From: Correlation of qanadli obstruction index (QOI) and atrial size on CT pulmonary angiography (CTPA) in patients with pulmonary thromboembolism

Study	RA long diameter	RA short diameter	RA area
Current study	r + 0.359	r + 0.439	r + 0.478
Current study	p + 0.015	p + 0.003	p + 0.001
Langroudi et al. [[1]]	r − 00.089	r + 0.334	r + 0.041
Langroudi et al. [[1]]	p + 0.538	p + 0.018	p + 0.776
Aviram et al. [[2]]	r + 0.204	r + 0.309	r + 0.276
Aviram et al. [[2]]	p + 0.017	p < 0.001	p + 0.001

Abbreviations: LA: left atrium; PAOI: Pulmonary atrial obstruction index; RA: Right atrium

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