2009 Summer Project Week Meningioma growth simulation - Revision history

Fedorov at 14:15, 26 June 2009

2009-06-26T14:15:52Z

2009-06-26T14:13:36Z

Key Investigators

2009-06-26T14:11:24Z

Key Investigators

2009-06-26T14:11:02Z

Key Investigators

2009-06-26T13:31:26Z

2009-06-26T13:28:36Z

2009-06-23T15:09:00Z

Key Investigators

2009-06-23T03:07:24Z

Key Investigators

2009-06-22T20:53:56Z

Key Investigators

2009-06-22T02:07:18Z

@@ Line 5: / Line 5: @@
 Image:tumorsim-meningioma2.jpg|... iteration 2
 Image:tumorsim-meningioma3.jpg|... iteration 3
 Image:meningiomasim_iter1.jpg|
 Image:meningiomasim_iter3.jpg|

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 * simulated images were generated using different iteration values for initial assessment
 * TumorSim has been augmented with more simulation parameters exposed, which allows more realism into simulation results
 </div>

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 * initial set of parameters that characterize meningioma MR appearance were suggested
 * simulated images were generated using different iteration values for initial assessment
-* TumorSim has been augmented with more simulation parameters exposed, which allows more realist into simulation results
+* TumorSim has been augmented with more simulation parameters exposed, which allows more realism into simulation results
 </div>

@@ Line 48: / Line 48: @@
 * initial set of parameters that characterize meningioma MR appearance were suggested
 * simulated images were generated using different iteration values for initial assessment
 </div>
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 ** solver convergence
 ** mesh quality can be insufficient
 </div>

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 Image:tumorsim-meningioma3.jpg|... iteration 3
 Image:meningiomasim_iter1.jpg|
 Image:meningiomasim_iter3.jpg|
 </gallery>

← Older revision		Revision as of 15:09, 23 June 2009
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	* paths to explore suggested by Marcel: use smaller value for the initial pressure (2) and more iterations; mesh may also be a problem -- if the first doesn't work, try to use better mesh. 10 iterations took 3 hr 32 min on george.bwh.harvard.edu.		* paths to explore suggested by Marcel: use smaller value for the initial pressure (2) and more iterations; mesh may also be a problem -- if the first doesn't work, try to use better mesh. 10 iterations took 3 hr 32 min on george.bwh.harvard.edu.
		+
		+	* simulation with the reduced initial pressure did not bring desired improvements in simulation realism. Next steps -- expose some of the parameters that are currently hidden:
		+	** noise for deformation direction: influences the shape of the simulated tumor
		+	** image noise: currently high and fixed, but the real clinical images are not that noisy
		+	** image contrast (not that important)
		+	** MRI field inhomogeneity -- currently fixed
		+	** dampening: decreases with the deformation iterations
		+	** solver convergence
		+	** mesh quality can be insufficient

	</div>		</div>

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 </pre>
-* paths to explore suggested by Marcel: use smaller value for the initial pressure (2) and more iterations; mesh may also be a problem -- if the first doesn't work, try to use better mesh
+* paths to explore suggested by Marcel: use smaller value for the initial pressure (2) and more iterations; mesh may also be a problem -- if the first doesn't work, try to use better mesh. 10 iterations took 3 hr 32 min on george.bwh.harvard.edu.
 </div>

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 </tumor-simulation-parameters>
 </pre>
 </div>

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 __NOTOC__
 <gallery>
-Image:PW2009-v3.png|[[2009_Summer_Project_Week|Project Week Main Page]]
+Image:PW2009-v3.png|[[2009_Summer_Project_Week#Projects|Projects List]]
 Image:tumorsim-meningioma1.jpg|Tumor sumulation iteration 1
 Image:tumorsim-meningioma2.jpg|... iteration 2