Abstracts in 2008

• Semi-continuous low dose rate teletherapy for the treatment of recurrent glial brain tumors. M.L. Silker, S. Firat, W.M. Mueller, C.J. Schultz. Presented at 2008 ASTRO Annual meeting.
• A Dosimetric Comparison of Conventional Radiotherapy and Helical Tomotherapy for Total Body Irradiation. S. R. Faught, S. Firat, C. Lawton, K. Kainz, Presented at 2008 ASTRO Annual meeting.
• Dosimetric and technical aspects of lung cancer radiotherapy with respiratory motion management and CT-fluoroscopic image guidance, Tai A, Christensen J, Gore E, Li XA. Presented at 2008 ASTRO Annual meeting.
• Automated registration of large deformations for adaptive radiation therapy of prostate cancer. A Godley, E Ahunbay, C Peng, J Christensen and XA Li. Presented at 2008 ASTRO Annual meeting.
• PTV margin to account for deformation during prostate IGRT. C. Peng, E. Ahunbay, A. Godley, C. Lawton, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Multi-sensor measurement of external movement to improve correlation between external marker and internal motion for respiratory motion management during radiotherapy. J. Christensen, A Tai, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• An aperture-morphing based online adaptive scheme for prostate radiotherapy. E. Ahunbay, G Chen, C Peng, A Godley, C. Lawton, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Characterization of ineterfraction changes and their dosimetric effects for prostate radiotherapy using daily kVCT. G. Chen, C. Peng, E. Ahunbay, C. Lawton, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Organ Growth modeling for radiation treatment planning of pediatric patients. K. Kainz, S. Firat, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Radiobiological modeling for lung tumor volume regression during the course of radiotherapy. M. Guerrero, C. Ramsey, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• IGRT with CT-on-Rails for prone breast irradiation. N.V. Morrow, J. White, J. Rownd, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Improved heart and lung sparing in whole breast irradiation with management of respiration motion. XS. Qi, J. White, J. Herman, F. Lopez, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Dosimetric Comparison between Head and Neck IMRT Plans Generated using a Biologically Based and Dose-Based Treatment Planning Systems. V. Semenenko, X.S. Qi, M. Daly, C. Schultz, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Independent Interfraction Motion and Deformation of Pelvic Nodes and Prostate in Image-Guided Concurrent Irradiation of Prostate and Pelvic Nodes. A. Currey, E. Ahunbay, C. Peng, Y. Chang, C. Lawton, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Quantifying Interfractional Variations for Head and Neck Cancer Treatment Based on Daily kVCT to Determine Selection Criteria for Adaptive Correction Schemes. C. Wood, E. Ahunbay, C. Peng, D. Wang, C. Schultz, X.A. Li. Presented at 2008 ASTRO Annual meeting.
• Rapid internal dosimetry with invasive imaging. C. Peng, E. Ahunbay, R. Hellman, X.A. Li. Presented at 2008 RRS/ASTRO Annual meeting.
• Use of megavoltage fluoroscopy and cone-beam CT for on-line verification during 4D/gated delivery. A. Tai, J. Christensen, B. Gore, A. Khamene, T. Boettger, X.A. Li. Presented at 2008 AAPM Annual meeting.
• A novel registration tool for large deformations for adaptive radiation therapy. A. Godley, E. Ahunbay, C. Peng, J. Christensen, X.A. Li. Presented at 2008 AAPM Annual meeting. 
• Interfraction dose variations for head and neck cancer assessed using daily kVCT. C. Peng, E. Ahunbay, C. Wood, D. Wang, X.A. Li. Presented at 2008 AAPM Annual meeting.
• 3D Tumor Motion Tracking using MV Cone-Beam Acquisition with Synchronized Respiratory Monitoring. J. Christensen, A. Tai, E. Gore, X.A. Li. Presented at 2008 AAPM Annual meeting.
• An online correction method for interfractional variations in head and neck cancer. E. Ahunbay, G. Chen, C. Peng, C. Schultz, X.A. Li. Presented at 2008 AAPM Annual meeting.
• Can voxel based prescription dose be determined from multiple physiological MR modalities for brain tumors? E. Ahunbay, C. Schultz, X.A. Li. Presented at 2008 AAPM Annual meeting.
• A method to implement rotational IMRT with single arc. G. Chen, E. Ahunbay, X.A. Li. Presented at 2008 AAPM Annual meeting.
• MVCT-guided partial-breast irradiation in prone position: daily set-up uncertainty and dose variation. K. Kainz, J. White, X.A. Li. Presented at 2008 AAPM Annual meeting.
• Impact of image quality on CT guided prostate radiotherapy. N. Morrow, C. Lawton, X.A. Li. Presented at 2008 AAPM Annual meeting.
• Improved critical structure sparing with biologically-based treatment planning systems. S. Qi, V. Semenenko, K. Kainz, X. Li. Presented at 2008 AAPM Annual meeting.
• Impact of Biological Optimization on plan quality: An evaluation of a commercial planning system. V. Semenenko, X.S. Qi, X.A. Li. Presented at 2008 AAPM Annual meeting.
• Should a Gaussian probability density function be used to approximate respiration induced dosimetric effects for proton radiotherapy? J. Zhao, G. Sandison, J. Farr, X.A. Li. Presented at 2008 AAPM Annual meeting.
• Biologically based Corrections for Interfraction Variations During Prostate Cancer Radiation Therapy. JH Park, XA Li, A Godley, RD Stewart. Presented at 2008 AAPM Annual meeting.
• Outcome driven automatic treatment planning, XA Li (invited). Presented at 2008 AAPM Annual meeting.