Intermediate
Technical
IVT
gross tumor volume
Visible and palpable tumor that can be detected by clinical examination and imaging.
Full Definition
The Gross Tumor Volume represents the visible, demonstrable extent of malignant growth that can be identified through clinical examination, imaging studies, and other diagnostic methods. The GTV forms the foundation for radiation treatment planning, with additional margins added to account for microscopic disease extension and setup uncertainties. Accurate GTV delineation is crucial for treatment success.
Usage
Usage note: Often abbreviated as GTV in clinical documentation.
In Context
- "The gross tumor volume was carefully contoured on all relevant CT slices." — Contouring report
- "Accurate gross tumor volume definition requires correlation with all available imaging modalities." — Planning guideline
Also known as
GTV
Contrasted with
clinical target volume
planning target volume
Don't confuse with
clinical target volume
internal target volume