What are the indications for brachytherapy?
Brachytherapy is most commonly used to treat prostate cancer. It also can be used for gynecologic cancers such as cervical cancer and uterine (endometrial) cancer, as well as breast cancer, lung cancer, rectal cancer, eye cancer, and skin cancer.
What is Craniospinal radiation therapy?
Craniospinal irradiation (CSI) is a radiation technique that is used in the treatment of central nervous system malignancies that have a substantial risk of subarachnoid spread. Medulloblastoma is the most common diagnosis in children for which CSI is part of the standard of care.
What are the indications for radiotherapy?
Indications for external beam radiation therapy include the primary treatment of specific tumor types, adjuvant treatment in addition to surgery and/or chemotherapy for better tumor control, and for palliation to improve quality of life for advanced cancer cases.
What is the difference between VMAT and IMRT?
VMAT is a type of IMRT technique. VMAT stands for Volumetric Arc Therapy. VMAT can also be called Rapid Arc. VMAT is different to normal IMRT in that the radiotherapy machine rotates around the patient during a radiotherapy beam in an arc shape.
What isotope is used in prostate brachytherapy?
Currently, the isotope most commonly used for temporary brachytherapy is iridium (Ir)-192, which provides a higher dose of radiation than the iodine (I)-125 and palladium (Pd)-103 permanent implants.
What is the half life of palladium 103?
With a half-life of 17 days, palladium 103 administered with brachytherapy allows continuous, tumor-site specific low-energy irradiation to the tumor cell population while sparing normal adjacent tissues from radiotoxicity.
What is the purpose of Craniospinal irradiation?
[1] Craniospinal Irradiation (CSI) is used for treatment of medulloblastoma and other brain tumors, which tend to spread via Cerebrospinal Fluid (CSF).
What are the different types of tumors that may be beneficial to Craniospinal irradiation?
Craniospinal irradiation (CSI) is a radiation technique used for patients with central nervous system malignancies, such as medulloblastoma and primitive neuroectodermal tumors.
What are the different types of radiotherapy?
The two main types of radiotherapy are: External radiotherapy – where the radiation comes from a machine outside the body. Internal radiotherapy – where the radiation comes from implants or liquids placed inside the body.
Why is Vmat better than IMRT?
Unlike IMRT, which typically includes less than 10 fixed-field beam angles, VMAT includes a large number of beam directions from an arc trajectory and delivers doses dynamically during rotation of the gantry.
Which is better IGRT vs IMRT?
IGRT uses imaging with the therapy to increase the efficiency by improving the precision and accuracy of the treatment procedure. The IMRT therapy uses high-edged software and sophisticated hardware to vary the intensity and shape of radiation used for different parts of the treatment area.
When is craniospinal irradiation (CSI) used?
31,32 Craniospinal irradiation (CSI) is used in rare cases of hematologic malignancies and primary brain tumors like medulloblastoma and CNS germinoma. Radhe Mohan PhD, Andrew K. Lee MD, MPH, in Leibel and Phillips Textbook of Radiation Oncology (Third Edition), 2010
Is proton craniospinal irradiation better than conventional radiation therapy?
• There is a decreased risk of radiocarcinogenesis with proton CSI than with conventional radiation therapy. •The reduction in risk of toxicity and radiocarcinogenesis offered by proton craniospinal irradiation appear to outweigh the increased costs. 55.
Can We Improve Consistency of craniospinal TV delineation in rtqa?
This consensus guideline has the potential to improve consistency of craniospinal TV delineation in an era of high-precision radiotherapy. This proposal will be incorporated in the RTQA guidelines of future SIOPE-BTG trials using CSI.
Can a consensus guideline improve consistency of craniospinal target volume delineation?
SIOPE – Brain tumor group consensus guideline on craniospinal target volume delineation for high-precision radiotherapy This consensus guideline has the potential to improve consistency of craniospinal TV delineation in an era of high-precision radiotherapy.