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Related Concept Videos

Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Y-90 Radioembolization and PD-1 Inhibitor as Neoadjuvant Treatment in Hepatocellular Carcinoma
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Prognostic Index for Liver Radiation (PILiR).

Laura Callan1, Haddis Razeghi2,3, Natalie Grindrod2,4

  • 1BC Cancer-Kelowna, Kelowna, BC V1Y 5L3, Canada.

Current Oncology (Toronto, Ont.)
|October 25, 2024
PubMed
Summary
This summary is machine-generated.

A new Prognostic Index for Liver Radiation (PILiR) aids patient selection for liver SBRT. It uses liver function and extrahepatic disease to predict survival, improving treatment decisions for liver cancer patients.

Keywords:
external beam radiotherapyhepatocellular carcinomaliver metastasisnomogramoverall survivalstereotactic body radiotherapy

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Area of Science:

  • Oncology
  • Radiotherapy
  • Medical Informatics

Background:

  • Stereotactic body radiation therapy (SBRT) is used for liver tumors.
  • Patient selection for SBRT is crucial, especially for those ineligible for other treatments.
  • Predictive tools are needed to optimize outcomes and resource allocation.

Purpose of the Study:

  • To develop and validate a prognostic index (PILiR) for predicting survival in patients undergoing liver SBRT.
  • To identify key clinical factors associated with early mortality in this patient cohort.
  • To improve patient selection for liver-directed radiotherapy.

Main Methods:

  • Retrospective analysis of a single-center database of 195 patients treated with liver SBRT.
  • Multivariable analysis to identify predictors of early death.
  • Development of the Prognostic Index for Liver Radiation (PILiR) based on significant predictors.
  • Validation of the index using Area Under the Curve (AUC) for different datasets.

Main Results:

  • Child-Pugh Score, serum albumin, and extrahepatic disease were significant predictors of early death in the combined cohort.
  • The PILiR score (0-5) demonstrated distinct median survival times: 23.8 months (0 points) to 2.6 months (4-5 points).
  • AUC values were 0.78 (combined), 0.84 (HCC), and 0.80 (metastatic), indicating good predictive accuracy.

Conclusions:

  • The PILiR is a validated tool for predicting survival in patients undergoing liver SBRT.
  • Liver function (Child-Pugh Score, albumin) and extrahepatic disease are critical factors influencing survival.
  • PILiR provides valuable prognostic information for patients and caregivers, aiding treatment decisions.