Qué hace esta calculadora
Structures liver observation categorization across the supported LI-RADS imaging pathways.
Select the examination pathway and supply its major features, size, and ancillary pathway inputs.
Antes del cálculo
- Confirm that the patient belongs to the applicable at-risk population and select the correct CT/MRI, ultrasound, CEUS, or treatment-response pathway.
- Verify phase timing, technical adequacy, observation size, and the pathway-specific major features.
Alcance clínico
Use the appropriate LI-RADS pathway for patients who meet that pathway's at-risk population criteria: CT/MRI diagnosis, ultrasound surveillance, CEUS diagnosis, or treatment response. Each pathway has distinct eligibility and category rules.
Aplicabilidad y exclusiones
- Do not apply diagnostic CT/MRI or CEUS categories when the patient does not meet the defined at-risk population criteria.
- Do not mix surveillance, diagnostic, and treatment-response descriptors; pediatric patients and vascular or benign mimics may require separate frameworks.
Método y lógica de cálculo
Select the pathway before entering features. CT/MRI uses major and ancillary features; surveillance US uses observation and visualization findings; CEUS uses enhancement and washout; treatment response uses therapy-specific viability criteria.
Tabla de interpretación
| Pathway | Representative categories |
|---|---|
| CT/MRI diagnostic | LR-1 to LR-5, LR-M, LR-TIV, LR-NC |
| US surveillance | US-1 to US-3 plus visualization score |
| CEUS diagnostic | CEUS LR categories |
| Treatment response | Therapy-specific LR-TR categories |
Errores frecuentes
- Mixing categories, descriptors, or versions from different LI-RADS pathways.
- Applying LI-RADS outside its eligible population or overlooking LR-M, tumor-in-vein, or treatment-response rules.
The output is pathway-specific and must be interpreted with eligibility, technical quality, and the complete examination.
Ejemplo práctico
Caso: Fictional example: an observation in an eligible at-risk patient is evaluated on multiphasic MRI using the CT/MRI diagnostic pathway.
Cálculo: Enter size, nonrim arterial phase hyperenhancement, major features, and any ancillary-category adjustment only after confirming pathway eligibility.
Interpretación: Check the generated LR category against the pathway's current diagnostic table and report all relevant observations, not only the highest category.
Cómo usar esta calculadora
- Completa los campos visibles de imagen y medición. Los datos obligatorios están indicados en la herramienta.
- Revisa la categoría, la puntuación, las mediciones y cualquier recomendación o advertencia calculada.
- Copia el texto para el informe solo después de comprobar el resultado con la exploración completa y la guía de referencia.
Preguntas sobre esta calculadora
Can LI-RADS be used in every patient with a liver lesion?
No. Diagnostic pathways are limited to specifically defined at-risk populations.
Are CT/MRI, CEUS, US surveillance, and treatment response one scoring system?
No. They are related but distinct algorithms; always select and cite the correct pathway and version.
¿Se envían las mediciones de pacientes a RadPhrases?
No. Los datos introducidos y los resultados se procesan en el navegador y esta página no los envía.