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. Author manuscript; available in PMC: 2012 Jul 25.
Published in final edited form as: Int J Comput Assist Radiol Surg. 2010 Aug 11;6(3):435–446. doi: 10.1007/s11548-010-0523-7

Fig. 7.

Fig. 7

Ex vivo results. a Top row: identical sections of predeformation CT. Middle row: same section of postdeformation CT without (left) and with (right) registration per needle tracking. Bottom row: difference image between the two CT sections in each column. Misregistration near the needle is reduced after recovering the deformation, which means improved spatial alignment. Red arrows: needle positions. Yellow arrows: target positions. In vivo results. b Top row: identical sections of predeformation CT. Middle row: same section of postdeformation CT without (left) and with (right) registration per needle tracking. Bottom row: difference image between the two CT sections in each column. Misregistration is reduced after recovering the deformation, which means improved spatial alignment. Yellow arrows: target positions