Egyptian Journal of Radiology and Nuclear Medicine

Table 5 correlation between the PAOI and radiologic parameters of left 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	LA long diameter	LA short diameter	LA area
Current study	r − 0.044	r − 0.598	r − 0.376
Current study	p + 0.776	p + 0.000	p + 0.011
Langroudi et al. [[1]]	r − 0.205	r − 0.380	r − 0.449
Langroudi et al. [[1]]	p + 0.152	p + 0.006	p + 0.001
Aviram et al. [[2]]	r − 0.144	r − 0.327	r − 0.256
Aviram et al. [[2]]	p + 0.096	p < 0.001	p + 0.003

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

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