DVH
Also written as: DVH — Dose-Volume Histogram
Graphical representation showing the percentage of organ volume receiving specific radiation doses.
Full Definition
A Dose-Volume Histogram is a graphical tool used in radiation treatment planning that displays the relationship between radiation dose and the volume of tissue receiving that dose. DVHs are essential for evaluating treatment plans, ensuring adequate target coverage, and verifying that dose constraints to organs at risk are met. They provide quantitative data for plan comparison and optimization.
Usage
Usage note: Plural form is DVHs; used both as singular and plural concept.
In Context
- "The DVH analysis revealed that 98% of the PTV received the prescription dose." — Plan evaluation report
- "Spinal cord DVH constraints were satisfied with a maximum dose of 45 Gy." — Quality assurance review