Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver.
<h4>Objectives</h4>In the early recognition of portal vein ligation (PVL) induced tumor progression, positron emission tomography and magnetic resonance imaging (PET/MRI) could improve diagnostic accuracy of conventionally used methods. It is unknown how PVL affects metabolic patterns of...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090760&type=printable |
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| author | András Fülöp Attila Szijártó László Harsányi András Budai Damján Pekli Diána Korsós Ildikó Horváth Noémi Kovács Kinga Karlinger Domokos Máthé Krisztián Szigeti |
| author_facet | András Fülöp Attila Szijártó László Harsányi András Budai Damján Pekli Diána Korsós Ildikó Horváth Noémi Kovács Kinga Karlinger Domokos Máthé Krisztián Szigeti |
| author_sort | András Fülöp |
| collection | DOAJ |
| description | <h4>Objectives</h4>In the early recognition of portal vein ligation (PVL) induced tumor progression, positron emission tomography and magnetic resonance imaging (PET/MRI) could improve diagnostic accuracy of conventionally used methods. It is unknown how PVL affects metabolic patterns of tumor free hepatic tissues. The aim of this preliminary study is to evaluate the effect of PVL on glucose metabolism, using PET/MRI imaging in healthy rat liver.<h4>Materials and methods</h4>Male Wistar rats (n=30) underwent PVL. 2-deoxy-2-(18F)fluoro-D-glucose (FDG) PET/MRI imaging (nanoScan PET/MRI) and morphological/histological examination were performed before (Day 0) and 1, 2, 3, and 7 days after PVL. Dynamic PET data were collected and the standardized uptake values (SUV) for ligated and non-ligated liver lobes were calculated in relation to cardiac left ventricle (SUVVOI/SUVCLV) and mean liver SUV (SUVVOI/SUVLiver).<h4>Results</h4>PVL induced atrophy of ligated lobes, while non-ligated liver tissue showed compensatory hypertrophy. Dynamic PET scan revealed altered FDG kinetics in both ligated and non-ligated liver lobes. SUVVOI/SUVCLV significantly increased in both groups of lobes, with a maximal value at the 2nd postoperative day and returned near to the baseline 7 days after the ligation. After PVL, ligated liver lobes showed significantly higher tracer uptake compared to the non-ligated lobes (significantly higher SUVVOI/SUVLiver values were observed at postoperative day 1, 2 and 3). The homogenous tracer biodistribution observed before PVL reappeared by 7th postoperative day.<h4>Conclusion</h4>The observed alterations in FDG uptake dynamics should be taken into account during the assessment of PET data until the PVL induced atrophic and regenerative processes are completed. |
| first_indexed | 2024-12-19T07:11:58Z |
| format | Article |
| id | doaj.art-06031d73809041fa9ae4ffea9f60c2c5 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
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| last_indexed | 2025-03-17T00:30:02Z |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
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| spelling | doaj.art-06031d73809041fa9ae4ffea9f60c2c52025-02-21T05:35:54ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0193e9076010.1371/journal.pone.0090760Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver.András FülöpAttila SzijártóLászló HarsányiAndrás BudaiDamján PekliDiána KorsósIldikó HorváthNoémi KovácsKinga KarlingerDomokos MáthéKrisztián Szigeti<h4>Objectives</h4>In the early recognition of portal vein ligation (PVL) induced tumor progression, positron emission tomography and magnetic resonance imaging (PET/MRI) could improve diagnostic accuracy of conventionally used methods. It is unknown how PVL affects metabolic patterns of tumor free hepatic tissues. The aim of this preliminary study is to evaluate the effect of PVL on glucose metabolism, using PET/MRI imaging in healthy rat liver.<h4>Materials and methods</h4>Male Wistar rats (n=30) underwent PVL. 2-deoxy-2-(18F)fluoro-D-glucose (FDG) PET/MRI imaging (nanoScan PET/MRI) and morphological/histological examination were performed before (Day 0) and 1, 2, 3, and 7 days after PVL. Dynamic PET data were collected and the standardized uptake values (SUV) for ligated and non-ligated liver lobes were calculated in relation to cardiac left ventricle (SUVVOI/SUVCLV) and mean liver SUV (SUVVOI/SUVLiver).<h4>Results</h4>PVL induced atrophy of ligated lobes, while non-ligated liver tissue showed compensatory hypertrophy. Dynamic PET scan revealed altered FDG kinetics in both ligated and non-ligated liver lobes. SUVVOI/SUVCLV significantly increased in both groups of lobes, with a maximal value at the 2nd postoperative day and returned near to the baseline 7 days after the ligation. After PVL, ligated liver lobes showed significantly higher tracer uptake compared to the non-ligated lobes (significantly higher SUVVOI/SUVLiver values were observed at postoperative day 1, 2 and 3). The homogenous tracer biodistribution observed before PVL reappeared by 7th postoperative day.<h4>Conclusion</h4>The observed alterations in FDG uptake dynamics should be taken into account during the assessment of PET data until the PVL induced atrophic and regenerative processes are completed.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090760&type=printable |
| spellingShingle | András Fülöp Attila Szijártó László Harsányi András Budai Damján Pekli Diána Korsós Ildikó Horváth Noémi Kovács Kinga Karlinger Domokos Máthé Krisztián Szigeti Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver. PLoS ONE |
| title | Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver. |
| title_full | Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver. |
| title_fullStr | Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver. |
| title_full_unstemmed | Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver. |
| title_short | Demonstration of metabolic and cellular effects of portal vein ligation using multi-modal PET/MRI measurements in healthy rat liver. |
| title_sort | demonstration of metabolic and cellular effects of portal vein ligation using multi modal pet mri measurements in healthy rat liver |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090760&type=printable |
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