Quantitative Evaluation of Peripheral Arterial Blood Flow Using Peri-Interventional Fluoroscopic Parameters: An In Vivo Study Evaluating Feasibility and Clinical Utility

Table 3

FWHM data before and after intervention for ROIs 1 to 4.

ROI	FWHM: preintervention (s)	FWHM: postintervention (s)	Significance of change ( value)	Correlation coefficient (rho)	Significance of correlation ( value)
I	1.95 (±0.66)	1.53 (±0.75)	0.089	−0.399	0.081
II	2.19 (±0.64)	1.69 (±0.78)	0.105	−0.382	0.097
III	2.58 (±0.97)	1.78 (±0.84)	0.070	−0.486	0.030
IV	2.93 (±1.05)	1.87 (±0.81)	0.015	−0.555	0.011

The arithmetic mean plus/minus standard deviation and values demonstrating the significance of pre- to postinterventional changes are listed. Spearman rank correlation coefficients (rho) and corresponding values demonstrating the significance of correlations in changes across all 10 patients at each ROI are also listed. values are calculated based on changes at each specific ROI and do not compare differing ROIs to one another. Significant values are marked with an asterisk.