RECIST criteria
Pronunciation: REH-sist
Also written as: RECIST — Response Evaluation Criteria in Solid Tumors
Standardized guidelines for measuring tumor response to treatment in clinical trials and practice.
Full Definition
Response Evaluation Criteria in Solid Tumors (RECIST) provides standardized methods for assessing tumor response to anticancer treatments using imaging studies. The criteria define complete response, partial response, stable disease, and progressive disease based on measurements of target lesions. RECIST ensures consistency in response assessment across clinical trials and institutions, with version 1.1 being the current standard that incorporates advances in imaging technology and biological understanding of cancer progression.
Usage
Usage note: Capitalize RECIST; specify version (1.1) when precision is required.
In Context
- "Tumor response was evaluated using RECIST criteria version 1.1 at 8-week intervals." — Clinical trial protocol
- "The patient achieved a partial response by RECIST criteria with a 45% reduction in target lesion diameter." — Radiology report