PMID: 16532950Mar 15, 2006Paper

A material sensitivity study on the accuracy of deformable organ registration using linear biomechanical models

Medical Physics
Y ChiD Yan

Abstract

Model-based deformable organ registration techniques using the finite element method (FEM) have recently been investigated intensively and applied to image-guided adaptive radiotherapy (IGART). These techniques assume that human organs are linearly elastic material, and their mechanical properties are predetermined. Unfortunately, the accurate measurement of the tissue material properties is challenging and the properties usually vary between patients. A common issue is therefore the achievable accuracy of the calculation due to the limited access to tissue elastic material constants. In this study, we performed a systematic investigation on this subject based on tissue biomechanics and computer simulations to establish the relationships between achievable registration accuracy and tissue mechanical and organ geometrical properties. Primarily we focused on image registration for three organs: rectal wall, bladder wall, and prostate. The tissue anisotropy due to orientation preference in tissue fiber alignment is captured by using an orthotropic or a transversely isotropic elastic model. First we developed biomechanical models for the rectal wall, bladder wall, and prostate using simplified geometries and investigated the effect...Continue Reading

References

Apr 10, 1999·Ultrasonic Imaging·T A KrouskopT Hall
May 29, 1999·International Journal of Radiation Oncology, Biology, Physics·D YanJ W Wong
Oct 26, 1999·IEEE Transactions on Medical Imaging·D RueckertD J Hawkes
Feb 15, 2000·Journal of Biomechanics·K Miller
Mar 30, 2001·Physics in Medicine and Biology·D L HillD J Hawkes
Aug 9, 2003·IEEE Transactions on Medical Imaging·Josien P W PluimMax A Viergever
Aug 31, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Shantanu Sinha, Usha Sinha
Sep 11, 2004·Physics in Medicine and Biology·Weiguo LuThomas R Mackie
Mar 4, 2005·Journal of Materials Science. Materials in Medicine·Y QiaoS Gudlavalleti

❮ Previous
Next ❯

Citations

Jun 25, 2010·Journal of Digital Imaging·Hsiang-Chi KuoShalom Kalnicki
Jan 18, 2008·Physics in Medicine and Biology·Hualiang ZhongJeffrey V Siebers
May 15, 2012·Physics in Medicine and Biology·Hualiang ZhongIndrin J Chetty
Sep 28, 2010·Progress in Biophysics and Molecular Biology·Yipeng HuDean Barratt
May 24, 2008·International Journal of Radiation Oncology, Biology, Physics·Michael Sharpe, Kristy K Brock
May 31, 2012·Journal of Magnetic Resonance Imaging : JMRI·Andriy FedorovClare M Tempany
Jun 3, 2011·IEEE Transactions on Medical Imaging·Yipeng HuDean C Barratt
Apr 14, 2016·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Tara RosewallMichael Milosevic
Dec 7, 2010·International Journal of Radiation Oncology, Biology, Physics·Eliana M Vásquez OsorioBen J M Heijmen
May 17, 2015·Medical Physics·Wendy J M van de VenHenkjan J Huisman
Aug 3, 2007·Physics in Medicine and Biology·Hualiang ZhongJeffrey V Siebers
Jan 4, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Deirdre M McGrathKristy K Brock
Mar 19, 2008·Technology in Cancer Research & Treatment·Lan LinNikos Papanikolaou
Jun 29, 2013·Physics in Medicine and Biology·S ReaungamornratR H Taylor
Dec 10, 2014·Physics in Medicine and Biology·Navid SamavatiKristy K Brock
Jan 16, 2007·Zeitschrift für medizinische Physik·David Sarrut

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biomechanics

Biomechanics examines the generation of internal forces within the body and investigates the effects and control of forces that act on or are produced on tissues. Here are the latest discoveries.