Subject: CMULTIS010-1
Segment: LowerLeg
Modality: Compare MRI and CT



Sphere Fitting - CT STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	T1		9.55		37.2106, 196.0458, -510.7456
	T2		9.52		0.5755, 213.6101, -522.3668
	T3		9.62		-26.1954, 198.2535, -500.2829
	T4		9.35		28.4187, 207.8177, -697.7380
	T5		9.37		18.4880, 210.7086, -783.7537
	T6		9.39		3.1007, 189.6235, -801.7520

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	T1		T2		42.26
	T1		T3		64.30
	T1		T4		187.57
	T1		T5		274.04
	T1		T6		293.07
	T2		T3		37.95
	T2		T4		177.66
	T2		T5		262.02
	T2		T6		280.42
	T3		T4		205.09
	T3		T5		287.24
	T3		T6		303.01
	T4		T5		86.64
	T4		T6		108.59
	T5		T6		31.71

Sphere Fitting - MRI STL

	Marker		Radius (mm)	Coordinates [x,y,z] (mm)
	T1		8.42		37.5130, 195.9797, -510.7170
	T2		8.28		0.5606, 213.5572, -521.8547
	T3		8.06		-26.4837, 198.3395, -500.5924
	T4		8.52		28.6142, 207.9892, -697.2407
	T5		8.40		18.4370, 210.8305, -784.0805
	T6		8.45		2.9571, 189.3630, -802.1536

	Distances between markers
	Marker 1	Marker 2	Distance (mm)
	T1		T2		42.41
	T1		T3		64.84
	T1		T4		187.12
	T1		T5		274.43
	T1		T6		293.55
	T2		T3		37.62
	T2		T4		177.70
	T2		T5		262.85
	T2		T6		281.35
	T3		T4		204.45
	T3		T5		287.30
	T3		T6		303.13
	T4		T5		87.48
	T4		T6		109.60
	T5		T6		32.05

Differences between CT and MRI registration

Marker 1	Marker 2	Distance Diff			Angle(deg)
T1		T2		-0.15 mm [-0.36 %]		0.76
T1		T3		-0.53 mm [-0.83 %]		0.40
T1		T4		0.45 mm [0.24 %]		0.09
T1		T5		-0.39 mm [-0.14 %]		0.08
T1		T6		-0.48 mm [-0.17 %]		0.08
T2		T3		0.33 mm [0.88 %]		1.23
T2		T4		-0.04 mm [-0.02 %]		0.10
T2		T5		-0.83 mm [-0.32 %]		0.04
T2		T6		-0.93 mm [-0.33 %]		0.04
T3		T4		0.64 mm [0.31 %]		0.19
T3		T5		-0.06 mm [-0.02 %]		0.05
T3		T6		-0.12 mm [-0.04 %]		0.07
T4		T5		-0.85 mm [-0.98 %]		0.11
T4		T6		-1.01 mm [-0.93 %]		0.15
T5		T6		-0.34 mm [-1.08 %]		0.37

Average 			0.48 mm [0.44 %]		0.25
Maximum 			1.01 mm [1.08 %]		1.23