School of Radiation oncologists (SORO): Target volume delineation cancer Larynx (part II)
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- เผยแพร่เมื่อ 5 ก.พ. 2021
- In this part there is explanation of the different method of target volume delineation, the old days, the international consensus and a simple method if you are still to familiarise yourself with the delineation
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Thanks a lot sir. It is very much helpful for beginners like us
بارك الله فيك و رحم والديك و جزاك خيرا
How different would the CTV be if the lesion is supra-glottic?
Dear Doctor Dyspnea (if it is your true name) same concept apply for the primary, GTV plus 1cm margin exclude thyroid cartilage for T1 and include for other stages will take full dose (as I mentioned in my video i have some concerns about excluding strap muscles in case the thyroid cartilage showing early infiltration. If you are using the usual common/old school you can include the rest of the larynx in the intermediate dose including all potential sites for tumour extension e.g. vallecula, base of tongue.....etc.
if you are from the new school you will stop at the GTV plus 1cm (which we didn't adopt yet).
Fundamental difference in supraglottic larynx that lymph nodes will be included in your CTV even in early stages.
hoping this clarify things better.
Do you have guidelines for postoperative situation? Which technique do you routinely use in this situation 3d or imrt? Thank you
Sorry for the delayed reply, most of our patients now are treated with VMAT, but you can use any techniques as the concept is the same.
see this paper you will find very important references that you can use in the post-operative setting DOI: 10.1016/j.oraloncology.2018.08.011
@@Radiationoncologyshcool thank you so much
Could you please send me the link of the international consensus ?
doi.org/10.1016/j.radonc.2017.10.016
i hope you will find it useful,
all the best
@@Radiationoncologyshcool thanks a lot