Subject: CMULTIS004-1
Segment: LowerLeg
Modality: Compare MRI and CT



Sphere Fitting - CT STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	T1		9.52		-49.3837, 217.2131, 638.4307
	T2		9.32		-2.1412, 233.3419, 676.1332
	T3		9.42		23.5956, 203.2558, 674.7780
	T4		9.46		3.3252, 204.2212, 858.2930
	T5		9.42		4.4857, 210.3009, 944.9319
	T6		9.39		24.1787, 172.2854, 959.8224

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	T1		T2		62.56
	T1		T3		82.72
	T1		T4		226.47
	T1		T5		311.28
	T1		T6		332.75
	T2		T3		39.62
	T2		T4		184.55
	T2		T5		269.87
	T2		T6		291.38
	T3		T4		184.63
	T3		T5		270.92
	T3		T6		286.72
	T4		T5		86.86
	T4		T6		108.46
	T5		T6		45.33

Sphere Fitting - MRI STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	T1		7.91		-49.9521, 217.4694, 637.4287
	T2		8.10		-2.1425, 232.9957, 675.9843
	T3		7.97		24.0302, 203.4576, 674.3211
	T4		8.20		3.4004, 203.9639, 858.5570
	T5		7.89		4.6459, 210.2588, 946.1128
	T6		7.84		24.0783, 172.4730, 959.9852

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	T1		T2		63.35
	T1		T3		83.85
	T1		T4		227.87
	T1		T5		313.56
	T1		T6		333.99
	T2		T3		39.50
	T2		T4		184.95
	T2		T5		271.17
	T2		T6		291.56
	T3		T4		185.39
	T3		T5		272.57
	T3		T6		287.34
	T4		T5		87.79
	T4		T6		108.20
	T5		T6		44.70

Differences between CT and MRI registration

Marker 1	Marker 2	Distance Diff			Angle(deg)
T1		T2		-0.79 mm [-1.27 %]		0.81
T1		T3		-1.13 mm [-1.37 %]		0.10
T1		T4		-1.41 mm [-0.62 %]		0.14
T1		T5		-2.28 mm [-0.73 %]		0.08
T1		T6		-1.24 mm [-0.37 %]		0.04
T2		T3		0.12 mm [0.29 %]		1.10
T2		T4		-0.40 mm [-0.21 %]		0.05
T2		T5		-1.30 mm [-0.48 %]		0.09
T2		T6		-0.18 mm [-0.06 %]		0.12
T3		T4		-0.75 mm [-0.41 %]		0.17
T3		T5		-1.65 mm [-0.61 %]		0.07
T3		T6		-0.62 mm [-0.22 %]		0.11
T4		T5		-0.93 mm [-1.07 %]		0.11
T4		T6		0.26 mm [0.24 %]		0.22
T5		T6		0.63 mm [1.39 %]		1.11

Average 			0.91 mm [0.62 %]		0.29
Maximum 			2.28 mm [1.39 %]		1.11