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Full-Text Articles in Medicine and Health Sciences

Adaptive Radiotherapy Planning On Decreasing Gross Tumor Volumes As Seen On Megavoltage Computed Tomography Images., Curtis Woodford, Slav Yartsev, R. Dar, Glenn Bauman, Jacob Van Dyk Nov 2007

Adaptive Radiotherapy Planning On Decreasing Gross Tumor Volumes As Seen On Megavoltage Computed Tomography Images., Curtis Woodford, Slav Yartsev, R. Dar, Glenn Bauman, Jacob Van Dyk

Oncology Publications

PURPOSE: To evaluate gross tumor volume (GTV) changes for patients with non-small-cell lung cancer by using daily megavoltage (MV) computed tomography (CT) studies acquired before each treatment fraction on helical tomotherapy and to relate the potential benefit of adaptive image-guided radiotherapy to changes in GTV.

METHODS AND MATERIALS: Seventeen patients were prescribed 30 fractions of radiotherapy on helical tomotherapy for non-small-cell lung cancer at London Regional Cancer Program from Dec 2005 to March 2007. The GTV was contoured on the daily MVCT studies of each patient. Adapted plans were created using merged MVCT-kilovoltage CT image sets to investigate the advantages …


Post-Operative Extended Volume External Beam Radiation Therapy Is Safe For High Risk Esophageal Cancer Patients, Edward Yu, Patricia Tai, Jawaid Younus, Richard Malthaner, Larry Stitt, Pauline Truong, George Rodrigues, Robert Ash, Rashid Dar, Anna Tomiak, Mark Vincent, Walter Kocha, Brian Dingle, Richard Inculet Jan 2007

Post-Operative Extended Volume External Beam Radiation Therapy Is Safe For High Risk Esophageal Cancer Patients, Edward Yu, Patricia Tai, Jawaid Younus, Richard Malthaner, Larry Stitt, Pauline Truong, George Rodrigues, Robert Ash, Rashid Dar, Anna Tomiak, Mark Vincent, Walter Kocha, Brian Dingle, Richard Inculet

Oncology Presentations

Post-operative radiation therapy (RT) (1) and post-operative chemoradiation (2) have been used for esophageal cancer patients deemed high risk for recurrence after esophagectomy.

Defining opitmal RT target volume after esophagectomy is difficult due to significant changes in patient anatomy and function.

Some radiationon cologists advocated the inclusion of the anastomotic site within the irradiation volume due to concerns for potential increased relapse risk, while others did not subscribe to this practice due to concerns for increased treatment related toxicity.

We have previously reported patient outcome benefit using extended volume RT In management with high risk esophageal cancer patients underwent esopagectomy(3). …


Uwomj Volume 76, No. 1, Western University Jan 2007

Uwomj Volume 76, No. 1, Western University

University of Western Ontario Medical Journal

Schulich School of Medicine & Dentistry


Esophageal Cancer, Edward Yu Jan 2007

Esophageal Cancer, Edward Yu

Oncology Publications

No abstract provided.