| Autor: |
Podder TK; Dept. of Radiation Oncology, University of Rochester, Rochester, NY 14642, USA., Sherman J, Messing EM, Rubens DJ, Fuller D, Strang JG, Brasacchio RA, Yu Y |
| Jazyk: |
angličtina |
| Zdroj: |
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference [Conf Proc IEEE Eng Med Biol Soc] 2006; Vol. 2006, pp. 555-8. |
| DOI: |
10.1109/IEMBS.2006.259921 |
| Abstrakt: |
Placement accuracy of different types of surgical needles in soft biological tissues depends on a variety of factors. The needles used for prostate brachytherapy procedures are typically about 200 mm in length and 1.27-1.47 mm in diameter. These needles are prone to deflection and thereby depositing the seeds at a location other than the planned one. Thus tumorous tissues may not receive the planned dose whereas the critical organs may be over-dosed. A significant amount of needle deflection and target movement is related to some procedure-specific criteria and some patient-specific criteria. In this paper we have developed needle insertion force models taking both procedure-specific criteria and patient-specific criteria. These statistical models can be used to estimate the force that the needle will experience during insertion and thereby control the needle to reduce the needle deflection and enhance seed delivery accuracy. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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