RECIST criteria
Pronunciation: REE-sist
Also written as: RECIST — Response Evaluation Criteria in Solid Tumors
Standardized guidelines for measuring solid tumor response to cancer treatment using imaging studies.
Full Definition
Response Evaluation Criteria in Solid Tumors (RECIST) provides internationally accepted methodology for assessing treatment efficacy in oncology trials and clinical practice. RECIST 1.1, the current version, categorizes response as complete response (CR), partial response (PR), stable disease (SD), or progressive disease (PD) based on measurable tumor dimension changes. The criteria specify target lesion selection, measurement techniques, and minimum change thresholds required for response determination. Editorial consistency requires proper version designation and response category abbreviations.
Usage
Usage note: Always capitalize RECIST; specify version number (1.1) when applicable; use standard response abbreviations (CR, PR, SD, PD).
In Context
- "Follow-up imaging demonstrated partial response by RECIST 1.1 criteria." — Oncology assessment note
- "The trial primary endpoint was objective response rate according to RECIST criteria." — Clinical trial protocol