The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine
In the literature, it has repeatedly been stated that the introduction of hepatospecific contrast agents in Magnetic Resonance Imaging prolongs the acquisition time due to the hepatobiliary phase, normally acquired 15–20 min after injection. Many efforts have been made to shorten the time-consuming...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Diagnostics |
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| Online Access: | https://www.mdpi.com/2075-4418/12/8/1811 |
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| author | Paola Franceschi Anna Pecorelli Rita Golfieri Matteo Renzulli |
| author_facet | Paola Franceschi Anna Pecorelli Rita Golfieri Matteo Renzulli |
| author_sort | Paola Franceschi |
| collection | DOAJ |
| description | In the literature, it has repeatedly been stated that the introduction of hepatospecific contrast agents in Magnetic Resonance Imaging prolongs the acquisition time due to the hepatobiliary phase, normally acquired 15–20 min after injection. Many efforts have been made to shorten the time-consuming protocols, and it was demonstrated that T2-Weighted Images (T2WI) and Diffusion-Weighted Images (DWI) acquired after Gd-EOB-DTPA show a comparable diagnostic capability to pre-contrast T2WI and DWI in the detection and characterization of hepatic tumors. Therefore, T2WI and DWI are usually acquired after the acquisition of vascular phases, in the dead time until the acquisition of the hepatobiliary phase. Unfortunately, contrast agents, especially Gd-EOB-DTPA, reduce the hydrogen nuclei’s relaxation time and modify signal intensity. We report a case in which, due to these limitations of the acquisition protocol, two hemangiomas showed an inhomogeneous, low signal on T2WI and DWI that was not visible in a follow-up scan a few days later. In conclusion, when liver lesions of unknown nature must be characterized, and there is a lack of previous radiological investigations, it could be useful to acquire pre-contrast T2WI and DWI to avoid diagnostic confusion, especially in non-tertiary centers. |
| first_indexed | 2024-03-09T04:33:56Z |
| format | Article |
| id | doaj.art-68781ee5181248fc89a375ba9718194a |
| institution | Directory Open Access Journal |
| issn | 2075-4418 |
| language | English |
| last_indexed | 2024-03-09T04:33:56Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diagnostics |
| spelling | doaj.art-68781ee5181248fc89a375ba9718194a2023-12-03T13:31:19ZengMDPI AGDiagnostics2075-44182022-07-01128181110.3390/diagnostics12081811The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical RoutinePaola Franceschi0Anna Pecorelli1Rita Golfieri2Matteo Renzulli3Department of Radiology, IRCSS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, ItalyDepartment of Radiology, IRCSS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, ItalyDepartment of Radiology, IRCSS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, ItalyDepartment of Radiology, IRCSS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, ItalyIn the literature, it has repeatedly been stated that the introduction of hepatospecific contrast agents in Magnetic Resonance Imaging prolongs the acquisition time due to the hepatobiliary phase, normally acquired 15–20 min after injection. Many efforts have been made to shorten the time-consuming protocols, and it was demonstrated that T2-Weighted Images (T2WI) and Diffusion-Weighted Images (DWI) acquired after Gd-EOB-DTPA show a comparable diagnostic capability to pre-contrast T2WI and DWI in the detection and characterization of hepatic tumors. Therefore, T2WI and DWI are usually acquired after the acquisition of vascular phases, in the dead time until the acquisition of the hepatobiliary phase. Unfortunately, contrast agents, especially Gd-EOB-DTPA, reduce the hydrogen nuclei’s relaxation time and modify signal intensity. We report a case in which, due to these limitations of the acquisition protocol, two hemangiomas showed an inhomogeneous, low signal on T2WI and DWI that was not visible in a follow-up scan a few days later. In conclusion, when liver lesions of unknown nature must be characterized, and there is a lack of previous radiological investigations, it could be useful to acquire pre-contrast T2WI and DWI to avoid diagnostic confusion, especially in non-tertiary centers.https://www.mdpi.com/2075-4418/12/8/1811magnetic resonance imaging (MRI)hepatic hemangiomahepatospecific contrast agentGd-EOB-DTPA |
| spellingShingle | Paola Franceschi Anna Pecorelli Rita Golfieri Matteo Renzulli The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine Diagnostics magnetic resonance imaging (MRI) hepatic hemangioma hepatospecific contrast agent Gd-EOB-DTPA |
| title | The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine |
| title_full | The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine |
| title_fullStr | The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine |
| title_full_unstemmed | The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine |
| title_short | The Influence of Gd-EOB-DTPA on T2 Signal Behavior: An Example from Clinical Routine |
| title_sort | influence of gd eob dtpa on t2 signal behavior an example from clinical routine |
| topic | magnetic resonance imaging (MRI) hepatic hemangioma hepatospecific contrast agent Gd-EOB-DTPA |
| url | https://www.mdpi.com/2075-4418/12/8/1811 |
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