European Radiology Experimental

Table 2 Preoperative (Io) and postoperative (I) values of MTT, PBF, and PBV along with the postoperative percent rise on the user-defined ROIs set on ATA and PA areas for each of the five patients

From: 2D perfusion DSA with an open-source, semi-automated, color-coded software for the quantification of foot perfusion following infrapopliteal angioplasty: a feasibility study

Patient 1	Before (I₀)		After (I)	% rise 100 × (I − I₀)/I₀	Patient 2	Before (I₀)		After (I)	% rise 100 × (I − I₀)/I₀
	Artery	ROI				Artery	ROI
MTT	ATA	5.89	5.20	-10.81		ATA	17.25	5.77	-66.56
	PA	4.58	10.21	123.10		PA	15.76	7.27	-66.56
	PA	8.19	8.52	4.10		PA	16.01	10.85	-66.56
	PA	8.05	8.78	9.05		PA	19.00	11.79	-66.56
PBF	ATA	0.04	0.14	232.26		ATA	0.015	0.08	404.57
	PA	0.11	0.08	-26.39		PA	0.021	0.04	220.93
	PA	0.05	0.12	131.10		PA	0.024	0.08	233.61
	PA	0.05	0.09	79.47		PA	0.00	0.06	1,453.85
PBV	ATA	0.20	0.39	96.22		ATA	0.22	0.39	75.52
	PA	0.49	0.29	-40.58		PA	0.17	0.24	39.80
	PA	0.26	0.38	43.35		PA	0.36	0.41	14.07
	PA	0.24	0.29	19.11		PA	0.07	0.47	529.45
Patient 3	Before (I₀)		After (I)	% rise 100 × (I − I₀)/I₀	Patient 4	Before (I₀)		After (I)	% rise 100 × (I − I₀)/I₀
	Artery	ROI				Artery	ROI
MTT	ATA	12.71	4.56	-64.16		ATA	12.43	8.83	-28.98
	PA	13.14	11.66	-11.23		PA	13.28	8.38	-36.92
	PA	15.75	10.29	-34.68		PA
	PA					PA
PBF	ATA	0.03	0.19	3,360.29		ATA	0.04	0.05	18.59
	PA	0.02	0.03	39.09		PA	0.04	0.03	-23.76
	PA	0.02	0.09	290.00		PA
	PA					PA
PBV	ATA	0.37	0.86	131.05		ATA	0.41	0.41	0.02
	PA	0.18	0.16	-11.02		PA	0.38	0.23	-41.28
	PA	0.27	0.53	95.39		PA
	PA					PA
Patient 5	Before (I₀)		After (I)	% rise 100 × (I − I₀)/I₀
	Artery	ROI
MTT	ATA	13.09	5.35	-59.15
	PA	14.56	5.57	-61.72
	PA
	PA
PBF	ATA	0.04	0.09	140.53
	PA	0.03	0.07	135.78
	PA
	PA
PBV	ATA	0.28	0.45	59.53
	PA	0.28	0.37	34.07
	PA
	PA

PBV Perfusion blood volume, MTT Mean transit time, PBF Perfusion blood flow, ATA Anterior tibial artery, PA Posterior tibial artery

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