Radiotherapy with Cutting Field IMRT (CFIMRT)
To achieve the dose distribution corresponding to that in IMRT using a conventional irradiation method, we propose the combination of rectangular rotation irradiation and fixed multiport irradiation (cutting field IMRT). In this site, I will demonstrate several clinical cases and these 'templates'.
No smallsegments are used for planning by CFIMRT. So this method is different from 'conventional IMRT '. <Reference>
The information provided on this 'Cutting Field IMRT' website is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. This site provide technical guidance for medical professionals, but you must use these information by your responsibility. Cutting Field IMRT is one of techniques for radiation therapy. This site will provide its information for medical professionals. If you are not a medical specialist, please talk with health professionals when you use the informations of this site. (Medical guidelines and medical insurance system are different by countries and districts.)
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Head Neck Esophagus Breast Stomach Liver Pancreas Abdomen Pelvis Bone_meta miscellaneous
Sample cases planned without MLC(Multi-Leaf Collimater) (RTP arts) ->Refer to 'Intensity modulated field' QA & QC
Cutting Field Technology Combination of Fixed port and Rotational port
(Low dose irradiation for large volume maybe induce radiation pneumonitis, so the public viewing of 'Lung session' will be suspended.)
('The mean V(20) of the non-PRD patients was considerably lower than that accepted during standard thoracic radiotherapy, implying that the V(20) should be kept as low as possible after extrapleural pneumonectomy.')
Caution:
In this article, several problems about IMRT are described. Please read its PDF file (free access)
'IMRT produces relatively greater dose inhomogeneity than 3D-CRT, even though it is theoretically supposed to provide a uniform dose.'
And also Compare ‘inhomogeneity’IMRT with CFIMRT: IMRT vs CFIMRT
PowerPoint files are stored to briefcase if you need detailed drawing images.->Yahoo BriefCase
Wole neck irradiation 'Prescribe=Delivery=50Gy version'
Whole Pelvic LN irradiation (50Gy) for Prostate cancer: CTV by RTOG
Whole Pelvic LN irradiation (50Gy) for Gynecological malignancy: CTV by RTOG
Whole neck 66Gy by dose painting
GIF anime about MLC and Gantry moving of DMLC-IMRT ( Conventional IMRT ).
In comparison MLC doesn't move during irradiation at each directions and no subsegments are used in CFIMRT.
'Segments' and 'Intensity Map' of IMRT: GIF animation (Segments are not used basically at CFIMRT)
What is Cutting Field IMRT (CFIMRT) Advantage of CFIMRT
Information of CRIMRT CFIMRT is easy to plan
QA and QC The contributed cases
Comparison of each irradiation method
Clinical application of TCP/NTCP
Sample plan with/without wedge filter
Target movement during each IMRT sessions
Basic technology for irradiation About_Iso_dose_line_(dose_distribution_curve)
About each irradiation method Basic anatomy About 'Wedge fielter'
OCR(off-central-axis_ratio),PDD,DMUetc.
XiO operation explanation (including about 'remote planning')
Please be sure to perform actual dose measurement in each irradiation fields in CFIMRT. And please be sure to perform comparison with the measurement dose and the calculation dose in RTPs.
How do you think these 'incidents'? : IAEA PowerPoint file (Accident report)
last modification date: 2009/10/29
