Subject: CMULTIS007-1
Segment: UpperLeg
Modality: Compare MRI and CT



Sphere Fitting - CT STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	F1		9.39		-17.1744, 253.9915, -387.0196
	F2		9.35		7.4426, 241.5903, -402.2690
	F3		9.40		-30.5490, 242.3624, -421.7808
	F4		9.24		35.1277, 183.6607, -776.6467
	F5		9.32		21.3136, 207.3393, -765.3471
	F6		9.43		-52.4965, 183.4302, -753.7599

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	F1		F2		31.50
	F1		F3		39.02
	F1		F4		399.36
	F1		F5		383.13
	F1		F6		375.13
	F2		F3		42.72
	F2		F4		379.84
	F2		F5		364.95
	F2		F6		361.28
	F3		F4		365.64
	F3		F5		349.22
	F3		F6		337.88
	F4		F5		29.65
	F4		F6		90.56
	F5		F6		78.45

Sphere Fitting - MRI STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	F1		8.13		-17.0487, 254.1761, -385.8213
	F2		8.20		7.6177, 241.8412, -401.1493
	F3		8.26		-30.8804, 242.3878, -421.2416
	F4		8.47		35.4811, 183.8776, -777.6106
	F5		8.23		21.3984, 206.8044, -766.0008
	F6		8.02		-52.9042, 183.2873, -754.9995

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	F1		F2		31.55
	F1		F3		39.81
	F1		F4		401.50
	F1		F5		385.04
	F1		F6		377.63
	F2		F3		43.43
	F2		F4		381.92
	F2		F5		366.79
	F2		F6		363.73
	F3		F4		367.19
	F3		F5		350.51
	F3		F6		339.66
	F4		F5		29.30
	F4		F6		91.23
	F5		F6		78.71

Differences between CT and MRI registration

Marker 1	Marker 2	Distance Diff			Angle(deg)
F1		F2		-0.05 mm [-0.16 %]		0.19
F1		F3		-0.79 mm [-2.03 %]		0.30
F1		F4		-2.13 mm [-0.53 %]		0.06
F1		F5		-1.91 mm [-0.50 %]		0.08
F1		F6		-2.50 mm [-0.67 %]		0.05
F2		F3		-0.71 mm [-1.67 %]		0.49
F2		F4		-2.07 mm [-0.55 %]		0.04
F2		F5		-1.84 mm [-0.50 %]		0.10
F2		F6		-2.46 mm [-0.68 %]		0.03
F3		F4		-1.55 mm [-0.42 %]		0.09
F3		F5		-1.29 mm [-0.37 %]		0.08
F3		F6		-1.78 mm [-0.53 %]		0.03
F4		F5		0.35 mm [1.17 %]		1.52
F4		F6		-0.67 mm [-0.74 %]		0.37
F5		F6		-0.26 mm [-0.33 %]		0.60

Average 			1.36 mm [0.72 %]		0.27
Maximum 			2.50 mm [2.03 %]		1.52