Intermediate
Technical
IVT
isodose curve
Pronunciation: EYE-so-dose
A line connecting points of equal radiation dose on a treatment planning map, similar to elevation contours on a topographic map.
Full Definition
Isodose curves are graphical representations used in radiation therapy planning that connect points receiving the same radiation dose, typically expressed as a percentage of the prescribed dose. These curves help radiation oncologists and medical physicists visualize dose distribution throughout the treatment volume and surrounding normal tissues. For editors working with radiation oncology content, understanding isodose terminology is essential for accurately reviewing treatment planning discussions, dose-volume histogram analyses, and quality assurance protocols.
In Context
- "The 95% isodose curve encompassed the entire planning target volume while sparing critical organs." — Treatment planning report
- "Steep isodose curves demonstrated good conformality of the IMRT plan." — Medical physics manuscript
Also known as
dose contour
isodose line
Don't confuse with
dose-volume histogram
treatment isocenter