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A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms
With modern imaging modalities of the brain a significant number of unruptured aneurysms are detected. However, not every aneurysm is prone to rupture. Because treatment morbidity is about 10% it is crucial to identify unstable aneurysms for which treatment should be discussed. Recently, new imaging...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PAGEPress Publications, Pavia, Italy
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5543827/ https://www.ncbi.nlm.nih.gov/pubmed/28839527 http://dx.doi.org/10.4081/cp.2017.975 |
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author | Petridis, Athanasios K. Kaschner, Marius Cornelius, Jan F. Kamp, Marcel A. Tortora, Angelo Steiger, Hans-Jakob Turowski, Bernd |
author_facet | Petridis, Athanasios K. Kaschner, Marius Cornelius, Jan F. Kamp, Marcel A. Tortora, Angelo Steiger, Hans-Jakob Turowski, Bernd |
author_sort | Petridis, Athanasios K. |
collection | PubMed |
description | With modern imaging modalities of the brain a significant number of unruptured aneurysms are detected. However, not every aneurysm is prone to rupture. Because treatment morbidity is about 10% it is crucial to identify unstable aneurysms for which treatment should be discussed. Recently, new imaging tools allow analysis of flow dynamics and wall stability have become available. It seems that they might provide additional data for better risk profiling. In this study we present a new imaging tool for analysis of flow dynamics, which calculates fluid velocity in an aneurysm (Phillips Electronics, N.V.). It may identify regions with high flow and calculate flow reduction after stenting of aneurysms. Contrast is injected with a stable injection speed of 2 mL/sec for 3 sec. Two clinical cases are illustrated. Velocity in aneurysms and areas of instability can be identified and calculated during angiography in real-time. After stenting and flow diverter deployment flow reduction in the internal carotid aneurysm was reduced by 60% and there was a reduction of about 65% in the posterior cerebral artery in the second case we are reporting. The dynamic flow software calculates the flow profile in the aneurysm immediately after contrast injection. It is a real-time, patient specific tool taking into account systole, diastole and flexibility of the vasculature. These factors are an improvement as compared to current models of computational flow dynamics. We think it is a highly efficient, user friendly tool. Further clinical studies are on their way. |
format | Online Article Text |
id | pubmed-5543827 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | PAGEPress Publications, Pavia, Italy |
record_format | MEDLINE/PubMed |
spelling | pubmed-55438272017-08-24 A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms Petridis, Athanasios K. Kaschner, Marius Cornelius, Jan F. Kamp, Marcel A. Tortora, Angelo Steiger, Hans-Jakob Turowski, Bernd Clin Pract Brief Report With modern imaging modalities of the brain a significant number of unruptured aneurysms are detected. However, not every aneurysm is prone to rupture. Because treatment morbidity is about 10% it is crucial to identify unstable aneurysms for which treatment should be discussed. Recently, new imaging tools allow analysis of flow dynamics and wall stability have become available. It seems that they might provide additional data for better risk profiling. In this study we present a new imaging tool for analysis of flow dynamics, which calculates fluid velocity in an aneurysm (Phillips Electronics, N.V.). It may identify regions with high flow and calculate flow reduction after stenting of aneurysms. Contrast is injected with a stable injection speed of 2 mL/sec for 3 sec. Two clinical cases are illustrated. Velocity in aneurysms and areas of instability can be identified and calculated during angiography in real-time. After stenting and flow diverter deployment flow reduction in the internal carotid aneurysm was reduced by 60% and there was a reduction of about 65% in the posterior cerebral artery in the second case we are reporting. The dynamic flow software calculates the flow profile in the aneurysm immediately after contrast injection. It is a real-time, patient specific tool taking into account systole, diastole and flexibility of the vasculature. These factors are an improvement as compared to current models of computational flow dynamics. We think it is a highly efficient, user friendly tool. Further clinical studies are on their way. PAGEPress Publications, Pavia, Italy 2017-08-03 /pmc/articles/PMC5543827/ /pubmed/28839527 http://dx.doi.org/10.4081/cp.2017.975 Text en ©Copyright A.K. Petridis et al., 2017 http://creativecommons.org/licenses/by-nc/4.0/ This work is licensed under a Creative Commons Attribution NonCommercial 4.0 License (CC BY-NC 4.0). |
spellingShingle | Brief Report Petridis, Athanasios K. Kaschner, Marius Cornelius, Jan F. Kamp, Marcel A. Tortora, Angelo Steiger, Hans-Jakob Turowski, Bernd A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms |
title | A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms |
title_full | A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms |
title_fullStr | A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms |
title_full_unstemmed | A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms |
title_short | A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms |
title_sort | new imaging tool for realtime measurement of flow velocity in intracranial aneurysms |
topic | Brief Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5543827/ https://www.ncbi.nlm.nih.gov/pubmed/28839527 http://dx.doi.org/10.4081/cp.2017.975 |
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