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. Author manuscript; available in PMC: 2009 Sep 11.
Published in final edited form as: Med Phys. 2007 Apr;34(4):1336–1347. doi: 10.1118/1.2712575

Table I.

Registration performance under different criteria for different techniques.

Second stage Hessian constraint Geometric constraint l2 Distance error (mm) Correlation coefficient Volume overlap ratio Hit rate
Technique 1 No No No 9.7±5.5 0.14±0.26 0.24±0.27 28/101
Technique 2 Yes No No 3.5±6.3 0.81±0.18 0.72±0.24 93/101
Technique 3 Yes No Yes 2.9±4.6 0.80±0.19 0.72±0.23 93/101
Technique 4 Yes Yes No 3.1±4.9 0.79±0.19 0.71±0.24 93/101
Technique 5 Yes Yes Yes 2.7±3.3 0.79±0.20 0.72±0.24 93/101