Developing a Treatment Planning Software Based on TG-43U1 Formalism for Cs-137 LDR Brachytherapy
نویسندگان
چکیده
منابع مشابه
Developing a Treatment Planning Software Based on TG-43U1 Formalism for Cs-137 LDR Brachytherapy
BACKGROUND The old Treatment Planning Systems (TPSs) used for intracavitary brachytherapy with Cs-137 Selectron source utilize traditional dose calculation methods, considering each source as a point source. Using such methods introduces significant errors in dose estimation. As of 1995, TG-43 is used as the main dose calculation formalism in treatment TPSs. OBJECTIVES The purpose of this stu...
متن کاملdeveloping a treatment planning software based on tg-43u1 formalism for cs-137 ldr brachytherapy
conclusions according to the results, the old dosimetry formalisms, overestimate the dose especially towards the applicator’s tip. while the tg-43u1 based software perform the calculations more accurately. results for a typical arrangement of 10 active pellets in the applicator, the percentage difference between doses obtained by the new algorithm at 1cm distance from the tip of the applicator ...
متن کاملUpdating the Planar Patterson-Parker Table for Ir-192 and Cs-137 Brachytherapy Sources Using the Most Recent TG-43U1 Recommended Dosimetric Parameters
Background: The Patterson-Parker table was created in 1934 to determine mg-hr required to deliver the prescribed dose to the treatment area. These tables were created using the dosimetric data for 226Ra that was determined in air and were utilized for dose calculations around implants with Ra-equivalent radionuclides such as 137Cs and 192Ir. Therefore, the differences of the tissue attenuation ...
متن کاملSimulation of the shielding effects of an applicator on the AAPM TG-43 parameters of CS-137 Selectron LDR brachytherapy sources
Background: The dose rate distribution delivered by a low dose rate 137Cs pellet source, a spherical source used within the source trains of the Selectron gynecological brachytherapy system, was investigated using the MCNP4C Monte Carlo code. Materials and Methods: The calculations were performed in both water and Plexiglas and the absolute dose rate distribution for a single pellet s...
متن کاملErratum: "TG-43 U1 based dosimetric characterization of model 67-6520 Cs-137 brachytherapy source".
PURPOSE Brachytherapy treatment has been a cornerstone for management of various cancer sites, particularly for the treatment of gynecological malignancies. In low dose rate brachytherapy treatments, 137Cs sources have been used for several decades. A new 137Cs source design has been introduced (model 67-6520, source B3-561) by Isotope Products Laboratories (IPL) for clinical application. The g...
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ژورنال
عنوان ژورنال: Iranian Red Crescent Medical Journal
سال: 2013
ISSN: 2074-1804,2074-1812
DOI: 10.5812/ircmj.4938