21: Total marrow irradiation (TMI) using helical tomotherapy
نویسندگان
چکیده
منابع مشابه
Virtual bolus for total body irradiation treated with helical tomotherapy
Intensity-modulated radiation therapy (IMRT) for total body irradiation (TBI) is practiced in several centers using the TomoTherapy System. In this context the planning target volume (PTV) is the entire body including the skin. A safety margin in the air surrounding the body should be added to take into account setup errors. But using inverse planning, over-fluence peak could be generated in th...
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The aim of this study was to describe early and late toxicity, survival and local control in 45 patients with primary brain tumors treated with helical tomotherapy craniospinal irradiation (HT-CSI). From 2006 to 2014, 45 patients with central nervous system malignancies were treated with HT-CSI. The most common tumors were medulloblastoma in 20 patients, ependymoma in 10 patients, intracranial ...
متن کاملTotal Body Irradiation (TBI) using Helical Tomotherapy in children and young adults undergoing stem cell transplantation
BACKGROUND Establishing Total Body Irradiation (TBI) using Helical Tomotherapy (HT) to gain better control over dose distribution and homogeneity and to individually spare organs at risk. Because of their limited body length the technique seems especially eligible in juvenile patients. PATIENTS AND METHODS The cohort consisted of 10 patients, 6 female and 4 male, aged 4 - 22 y with acute lymp...
متن کاملFast, simple, and informative patient-specific dose verification method for intensity modulated total marrow irradiation with helical tomotherapy
BACKGROUND Patient-specific dose verification for treatment planning in helical tomotherapy is routinely performed using a homogeneous virtual water cylindrical phantom of 30 cm diameter and 18 cm length (Cheese phantom). Because of this small length, treatment with total marrow irradiation (TMI) requires multiple deliveries of the dose verification procedures to cover a wide range of the targe...
متن کاملImpact of very long time output variation in the treatment of total marrow irradiation with helical tomotherapy
BACKGROUND Beam-on time in Total Marrow Irradiation (TMI) delivery with helical tomotherapy is more than 30 minutes. The purpose of this study was to investigate extended time output variation in tomotherapy machine without dose servo system and its impact on the dosimetry of TMI planning. MATERIALS AND METHODS The calibration procedures with 1800 seconds delivery were conducted. The slab and...
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ژورنال
عنوان ژورنال: Biology of Blood and Marrow Transplantation
سال: 2007
ISSN: 1083-8791
DOI: 10.1016/j.bbmt.2006.12.024