Defensa Tesis de Magister - Sr. Andres Perez
El Viernes 20 de Junio se realizo de manera exitosa la defensa de Magister en Fisica Medica, en modalidad de doble grado con la Universidad de Heidelberg, Alemania, del Sr. Andres Perez, tesis titulada "Optimization of the dose distribution in radiotherapy of hypoxic tumours", bajo la direccion de los profesores Dra. Beatriz Sanchez y Dr. Ignacio Espinoza, integrantes del grupo de Fisica Medica de la PUC. Como contraparte de la Universidad de Heidelberg completo la comision evaluadora el profesor Dr. Christian Karger. Esta defensa tuvo lugar en Campus San Joaquin (Macul, Santiago) de nuestra Universidad.
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Abstract: An optimization of dose distribution by voxels and at every fraction, was done. This was performed, by using different optimization algorithms, considering oxygenation status (summarized in oxygen histograms per voxel). Two objective functions were explored: minimization of the survival of tumour cells and minimization of the relative variance of the number of tumour cells between voxels. Resulted in improved tumor control by maintaining the average tumor dose. |