Abstract：
OBJECTIVE:Complex oncologic interventions in the liver require an extensive and careful preoperative analysis. Particularly the achievement of an optimal safety margin around tumors remains a difficult task for surgeons. METHODS:We present new methods for evaluating different safety margins and their effect on the associated interruption of vascular supply or drainage. The characteristic of vascular risk distributions can be evaluated in real-time by exploiting precomputed safety maps that provide a volume curve for each vascular system. By applying fast visualization methods in 3D it is possible to assist the surgeon in the determination of a tumor-free safety margin while preserving sufficient vital hepatic parenchyma. The combination of risk analysis from different vascular systems and their sensitivity is considered. RESULTS:We provide physicians with a novel computer-aided planning tool that allows for interactive determination of safety margins in real-time. The planning tool integrates smoothly into the preoperative workflow. Preliminary evaluations confirm that the width of safety margins can be determined more precisely, which may affect the proposed resection strategy. CONCLUSION:Our new methods provide interactive feedback and support for decision making during the preoperative planning stage and thus might potentially improve the outcome of surgical interventions.
journal_name
Int J Comput Assist Radiol Surgauthors
Hansen C,Zidowitz S,Hindennach M,Schenk A,Hahn H,Peitgen HOdoi
10.1007/s11548-009-0359-1subject
Has Abstractpub_date
2009-09-01 00:00:00pages
469-74issue
5eissn
1861-6410issn
1861-6429journal_volume
4pub_type
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journal_title：International journal of computer assisted radiology and surgery
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journal_title：International journal of computer assisted radiology and surgery
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journal_title：International journal of computer assisted radiology and surgery
pub_type： 已发布勘误
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journal_title：International journal of computer assisted radiology and surgery
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journal_title：International journal of computer assisted radiology and surgery
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pub_type： 杂志文章,评审
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journal_title：International journal of computer assisted radiology and surgery
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journal_title：International journal of computer assisted radiology and surgery
pub_type： 杂志文章,评审
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更新日期：2011-03-01 00:00:00
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journal_title：International journal of computer assisted radiology and surgery
pub_type： 杂志文章
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更新日期：2014-09-01 00:00:00
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journal_title：International journal of computer assisted radiology and surgery
pub_type： 杂志文章
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journal_title：International journal of computer assisted radiology and surgery
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pub_type： 杂志文章
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