Analysis of artefacts and detail resolution of lung MRI with breath-hold T1-weighted gradient-echo and T2-weighted fast spin-echo sequences with respiratory triggering.
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| Title: | Analysis of artefacts and detail resolution of lung MRI with breath-hold T1-weighted gradient-echo and T2-weighted fast spin-echo sequences with respiratory triggering. |
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| Authors: | Biederer, J.1 juergen.biederer@rad.uni-kiel.de, Reuter, M.1, Both, M.1, Muhle, C.2, Grimm, J.1, Graessner, J.3, Heller, M.1 |
| Source: | European Radiology. Feb2002, Vol. 12 Issue 2, p378-384. 7p. |
| Subjects: | Lungs, Respiration, Mediastinum, Bronchi, Blood vessels, Chest (Anatomy) |
| Abstract: | The aim of this study was to evaluate feasibility and limitations of two MR sequences for imaging of the lung using a semi-quantitative rating scale. Ten healthy volunteers were assessed with a breath-hold T1-weighted gradient-recalled-echo (TR/TE=129/2.2 ms, matrix 173 x 256) and a T2-weighted turbo spin-echo (TSE) sequence with respiratory triggering (TR/TE=3000-5000/120 ms, matrix 270 x 512) in axial 6-mm slices. The T1-weighted GRE protocol included a pre-saturation pulse over the mediastinal structures. Artefacts and resolution of vessel/airway structures in each lung segment were evaluated by two observers (10 volunteers, 180 segments). Cardiac and vessel pulsation artefacts predominated on T1-weighted GRE, respiration artefacts on T2-weighted TSE (lingula and middle lobe). Pre-saturation of the mediastinum reduced pulsation artefacts on T1-weighted GRE. T1-weighted GRE images were improved by bright flow signal of vessels, whereas image quality of T2-weighted TSE was reduced by black-blood effects in central parts of the lung. Delineation of lung periphery and the mediastinum was superior with T2-weighted TSE. Segmental/sub-segmental vessels (up to fourth/fifth order) and bronchi (up to third order) were identified. All 180 lung segments were imaged in diagnostic quality with at least one of the two sequences (T1-weighted GRE not diagnostic in 9 of 180, T2-weighted TSE in 4 of 180). Both sequences were found to be complementary: superior identification of gross lung anatomy with T1-weighted GRE and higher detail resolution in the periphery and the mediastinum with T2--weighted TSE. [ABSTRACT FROM AUTHOR] |
| Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 15654681 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Analysis of artefacts and detail resolution of lung MRI with breath-hold T1-weighted gradient-echo and T2-weighted fast spin-echo sequences with respiratory triggering. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Biederer%2C+J%2E%22">Biederer, J.</searchLink><relatesTo>1</relatesTo><i> juergen.biederer@rad.uni-kiel.de</i><br /><searchLink fieldCode="AR" term="%22Reuter%2C+M%2E%22">Reuter, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Both%2C+M%2E%22">Both, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Muhle%2C+C%2E%22">Muhle, C.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Grimm%2C+J%2E%22">Grimm, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Graessner%2C+J%2E%22">Graessner, J.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Heller%2C+M%2E%22">Heller, M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Feb2002, Vol. 12 Issue 2, p378-384. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Lungs%22">Lungs</searchLink><br /><searchLink fieldCode="DE" term="%22Respiration%22">Respiration</searchLink><br /><searchLink fieldCode="DE" term="%22Mediastinum%22">Mediastinum</searchLink><br /><searchLink fieldCode="DE" term="%22Bronchi%22">Bronchi</searchLink><br /><searchLink fieldCode="DE" term="%22Blood+vessels%22">Blood vessels</searchLink><br /><searchLink fieldCode="DE" term="%22Chest+%28Anatomy%29%22">Chest (Anatomy)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The aim of this study was to evaluate feasibility and limitations of two MR sequences for imaging of the lung using a semi-quantitative rating scale. Ten healthy volunteers were assessed with a breath-hold T1-weighted gradient-recalled-echo (TR/TE=129/2.2 ms, matrix 173 x 256) and a T2-weighted turbo spin-echo (TSE) sequence with respiratory triggering (TR/TE=3000-5000/120 ms, matrix 270 x 512) in axial 6-mm slices. The T1-weighted GRE protocol included a pre-saturation pulse over the mediastinal structures. Artefacts and resolution of vessel/airway structures in each lung segment were evaluated by two observers (10 volunteers, 180 segments). Cardiac and vessel pulsation artefacts predominated on T1-weighted GRE, respiration artefacts on T2-weighted TSE (lingula and middle lobe). Pre-saturation of the mediastinum reduced pulsation artefacts on T1-weighted GRE. T1-weighted GRE images were improved by bright flow signal of vessels, whereas image quality of T2-weighted TSE was reduced by black-blood effects in central parts of the lung. Delineation of lung periphery and the mediastinum was superior with T2-weighted TSE. Segmental/sub-segmental vessels (up to fourth/fifth order) and bronchi (up to third order) were identified. All 180 lung segments were imaged in diagnostic quality with at least one of the two sequences (T1-weighted GRE not diagnostic in 9 of 180, T2-weighted TSE in 4 of 180). Both sequences were found to be complementary: superior identification of gross lung anatomy with T1-weighted GRE and higher detail resolution in the periphery and the mediastinum with T2--weighted TSE. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00330-001-1147-7 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 378 Subjects: – SubjectFull: Lungs Type: general – SubjectFull: Respiration Type: general – SubjectFull: Mediastinum Type: general – SubjectFull: Bronchi Type: general – SubjectFull: Blood vessels Type: general – SubjectFull: Chest (Anatomy) Type: general Titles: – TitleFull: Analysis of artefacts and detail resolution of lung MRI with breath-hold T1-weighted gradient-echo and T2-weighted fast spin-echo sequences with respiratory triggering. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Biederer, J. – PersonEntity: Name: NameFull: Reuter, M. – PersonEntity: Name: NameFull: Both, M. – PersonEntity: Name: NameFull: Muhle, C. – PersonEntity: Name: NameFull: Grimm, J. – PersonEntity: Name: NameFull: Graessner, J. – PersonEntity: Name: NameFull: Heller, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2002 Type: published Y: 2002 Identifiers: – Type: issn-print Value: 09387994 Numbering: – Type: volume Value: 12 – Type: issue Value: 2 Titles: – TitleFull: European Radiology Type: main |
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