Subject: CMULTIS006-1
Segment: LowerLeg
Modality: Compare MRI and CT



Sphere Fitting - CT STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	T1		9.42		75.8296, 221.0637, 1170.3869
	T2		9.40		4.9650, 215.5120, 1134.4505
	T3		9.51		-11.3693, 192.4694, 1155.1030
	T4		9.56		29.9538, 216.1166, 971.9302
	T5		9.46		32.4008, 216.2892, 848.9019
	T6		9.53		3.9912, 187.3385, 826.4102

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	T1		T2		79.65
	T1		T3		93.03
	T1		T4		203.75
	T1		T5		324.44
	T1		T6		353.01
	T2		T3		34.99
	T2		T4		164.43
	T2		T5		286.86
	T2		T6		309.33
	T3		T4		189.26
	T3		T5		310.23
	T3		T6		329.09
	T4		T5		123.05
	T4		T6		150.59
	T5		T6		46.38

Sphere Fitting - MRI STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	T1		8.12		76.7495, 221.2512, 1171.8846
	T2		7.60		4.5144, 215.4692, 1134.8597
	T3		7.71		-11.5318, 192.4129, 1155.7029
	T4		7.85		29.4225, 216.0165, 971.2448
	T5		7.91		32.7356, 216.2965, 847.9684
	T6		8.18		3.8807, 187.3430, 825.5223

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	T1		T2		81.38
	T1		T3		94.27
	T1		T4		206.21
	T1		T5		326.93
	T1		T6		355.57
	T2		T3		34.98
	T2		T4		165.50
	T2		T5		288.28
	T2		T6		310.61
	T3		T4		190.42
	T3		T5		311.82
	T3		T6		330.58
	T4		T5		123.32
	T4		T6		150.70
	T5		T6		46.63

Differences between CT and MRI registration

Marker 1	Marker 2	Distance Diff			Angle(deg)
T1		T2		-1.73 mm [-2.17 %]		0.26
T1		T3		-1.24 mm [-1.33 %]		0.43
T1		T4		-2.46 mm [-1.21 %]		0.26
T1		T5		-2.49 mm [-0.77 %]		0.05
T1		T6		-2.55 mm [-0.72 %]		0.08
T2		T3		0.01 mm [0.03 %]		0.57
T2		T4		-1.07 mm [-0.65 %]		0.09
T2		T5		-1.41 mm [-0.49 %]		0.13
T2		T6		-1.29 mm [-0.42 %]		0.07
T3		T4		-1.16 mm [-0.61 %]		0.20
T3		T5		-1.59 mm [-0.51 %]		0.05
T3		T6		-1.49 mm [-0.45 %]		0.01
T4		T5		-0.27 mm [-0.22 %]		0.40
T4		T6		-0.10 mm [-0.07 %]		0.18
T5		T6		-0.25 mm [-0.55 %]		0.45

Average 			1.27 mm [0.68 %]		0.22
Maximum 			2.55 mm [2.17 %]		0.57