Egyptian Journal of Radiology and Nuclear Medicine

Table 3 Pearson’s correlation between QAI and long, short axis, area OF LA and RA

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

			QAI
Long axis	LA diameter	r value	− .044
	LA diameter	p value	.776
	RA diameter	r value	.359
	RA diameter	p value	.015*
Short axis	LA diameter	r value	− .598
	LA diameter	p value	.000*
	RA diameter	r value	.439
	RA diameter	p value	.003*
Area	LA	r value	− .376
	LA	p value	.011*
	RA	r value	.478
	RA	p value	.001*
LA/RA	Long axis	r value	− .445
	Long axis	p value	.002*
	Short axis	r value	− .847
	Short axis	p value	.000*
	Area	r value	− .898
	Area	p value	.000*

^*Significant

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