How well are clinical gross tumor volume DVHs approximated by an analytical function?
نویسندگان
چکیده
منابع مشابه
How Well Capitalized Are Well-Capitalized Banks?
How Well Capitalized Are Well-Capitalized Banks? T he wave of bank and savings and loan failures in the 1980s and early 1990s, and the resulting losses to deposit insurance funds, served to highlight the need for banks to hold sufficient capital to survive difficult times. In addition, many argued that deposit insurance made it imperative that banks be better capitalized, since deposit insuranc...
متن کاملApproximated Analytical Solution to an Ebola Optimal Control Problem
An analytical expression for the optimal control of an Ebola problem is obtained. The analytical solution is found as a first-order approximation to the Pontryagin Maximum Principle via the Euler–Lagrange equation. An implementation of the method is given using the computer algebra system Maple. Our analytical solutions confirm the results recently reported in the literature using numerical met...
متن کاملStructure of Sets Which Are Well Approximated by Zero Sets of Harmonic Polynomials
The zero sets of harmonic polynomials play a crucial role in the study of the free boundary regularity problem for harmonic measure. In order to understand the fine structure of these free boundaries a detailed study of the singular points of these zero sets is required. In this paper we study how “degree k points” sit inside zero sets of harmonic polynomials in R of degree d (for all n ≥ 2 and...
متن کاملFDG-PET/CT-based gross tumor volume contouring for radiation therapy planning: an experimental phantom study.
As there is continuing controversy over the role of F-18-fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT-fused imaging in radiation therapy (RT) planning, we performed a phantom study to assess the feasibility of FDG-PET/CT-based gross tumor volume (GTV) contouring. The phantom set, consisting of an elliptical bowl and 6 spheres measuring from 10-37 mm in diameter, were filled wi...
متن کاملAutomatic Segmentation of the Gross Tumor Volume in Prostate Carcinoma Using Fuzzy Clustering in Gallium-68 PSMA PET/CT Scan
Introduction: Modern radiotherapy (RT) techniques allow a highly precise deposition of the radiation dose in tumor. So, high conformal tumor doses can be reached while sparing critical organs at risk. Materials and Methods: This study was conducted in three phases. In the first phase; Fourteen patients with primary or recurrent prostate cancer receive Gallium-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Radiology and Oncology
سال: 2009
ISSN: 1581-3207,1318-2099
DOI: 10.2478/v10019-009-0016-x