Volumetric CT Assessment of In Situ Induced Hepatic Lesions in a Transgenic Swine Model
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View abstract on PubMed
Summary
This summary is machine-generated.This study quantitatively assessed hepatic lesions in an Oncopig model. Lesions grew rapidly for 21 days then spontaneously regressed, suggesting days 14-21 as optimal for research.
Area Of Science
- Hepatology
- Oncology Research
- Animal Models
Background
- Developing reliable large animal models for liver disease research is crucial.
- Quantitative assessment of induced hepatic lesions aids in understanding disease progression and therapeutic windows.
Purpose Of The Study
- To quantitatively assess the growth rate of in situ-induced hepatic lesions in an Oncopig model.
- To determine the optimal time window for experimental studies using this model.
Main Methods
- Oncopigs underwent triple-phase CT scans before and weekly after Ad-Cre vector-induced liver lesion generation.
- Lesion volumes were manually segmented and fitted to a logistic growth and decay model.
- Histopathology confirmed inflammatory lesions without evidence of carcinoma.
Main Results
- Successful lesion generation occurred in approximately 78% of cases.
- Lesions appeared as hypovascular masses with peripheral contrast enhancement.
- Rapid growth was observed for the first 21 days, followed by spontaneous regression between days 21 and 28.
Conclusions
- The optimal experimental window for Oncopig hepatic lesion studies is likely between days 14 and 21.
- The spontaneous regression of lesions limits the current model's long-term clinical relevance.
- Generated data and models can inform future computational studies with careful consideration of model limitations.
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