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Articles 1 - 2 of 2
Full-Text Articles in Public Health
Variability Of Target Volume Delineation In Cervical Esophageal Cancer, Patricia Tai, Jake Van Dyk, Edward Yu, Jerry Battista, Larry Stitt, Terry Coad
Variability Of Target Volume Delineation In Cervical Esophageal Cancer, Patricia Tai, Jake Van Dyk, Edward Yu, Jerry Battista, Larry Stitt, Terry Coad
Edward Yu
PURPOSE: Three-dimensional (3D) conformal radiation therapy (CRT) assumes and requires the precise delineation of the target volume. To assess the consistency of target volume delineation by radiation oncologists, who treat esophageal cancers, we have performed a transCanada survey. MATERIALS AND METHODS: One of three case presentations, including CT scan images, of different stages of cervical esophageal cancer was randomly chosen and sent by mail. Respondents were asked to fill in questionnaires regarding treatment techniques and to outline boost target volumes for the primary tumor on CT scans, using ICRU-50 definitions. RESULTS: Of 58 radiation oncologists who agreed to participate, 48 …
Prevalent Low Income Status In Canadian And United States Metropolitan Areas, 1980 And 1990, Kevin M. Gorey
Prevalent Low Income Status In Canadian And United States Metropolitan Areas, 1980 And 1990, Kevin M. Gorey
Social Work Publications
As compared to Toronto’s poor people, three to four-fold as many of upstate New York’s poor live in severely impoverished neighborhoods, areas where 40% or more of the residents have annual incomes below the federally established low income or poverty criterion. However, the prevalence of such extremely degraded living conditions increased similarly (two-fold) on both sides of the Canadian-US border during the 1980s. This urban problem, of the concentration of poor people, seems to predominantly be an inner-city problem in the US, whereas it was found to be nearly equivalently extant in the inner-city, mid-suburban and outlying suburban areas of …