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Article: Feasibility of combining MR perfusion, angiography, and 3He ventilation imaging for evaluation of lung function in a porcine model

TitleFeasibility of combining MR perfusion, angiography, and <sup>3</sup>He ventilation imaging for evaluation of lung function in a porcine model
Authors
KeywordsAngiography
Lung perfusion
Lung ventilation
Magnetic resonance
Pulmonary embolism
Issue Date2005
Citation
Academic Radiology, 2005, v. 12, n. 2, p. 202-209 How to Cite?
AbstractRationale and Objective. To assess the feasibility of combining magnetic resonance (MR) perfusion, angiography, and 3He ventilation imaging for the evaluation of lung function in a porcine model. Materials and Methods. Fourteen consecutive porcine models with externally delivered pulmonary emboli and/or airway occlusions were examined with MR perfusion, angiography, and 3He ventilation imaging. Ultrafast gradient-echo sequences were used for 3D perfusion and angiographic imaging, in conjunction with the use of contrast-agent injections. 2D multiple-section 3He imaging was performed subsequently via the inhalation of hyperpolarized 3He gas. The diagnostic accuracy of MR angiography for detecting pulmonary emboli was determined by two reviewers. The diagnostic confidence for different combinations of MR techniques was rated on the basis of a 5-point grading scale (5 = definite). Results. The sensitivity, specificity, and accuracy of MR angiography for detecting pulmonary emboli were approximately 85.7%, 90.5%, and 88.1%, respectively. The interobserver agreement was very strong (k = 0.82). There was a clear tendency for confidence to increase when first perfusion and then ventilation imaging were added to the angiographic image (Wilcoxon signed ranks test, P = 0.03). Conclusion. The combination of the three methods of MR perfusion, angiography, and 3H ventilation imaging may provide complementary information on abnormal lung anatomy and function. © AUR, 2005.
Persistent Identifierhttp://hdl.handle.net/10722/315946
ISSN
2021 Impact Factor: 5.482
2020 SCImago Journal Rankings: 0.986

 

DC FieldValueLanguage
dc.contributor.authorHong, Cheng-
dc.contributor.authorLeawoods, Jason C.-
dc.contributor.authorYablonskiy, Dmitriy A.-
dc.contributor.authorLeyendecker, John R.-
dc.contributor.authorBae, Kyongtae T.-
dc.contributor.authorPilgram, Thomas K.-
dc.contributor.authorWoodard, Pamela K.-
dc.contributor.authorConradi, Mark S.-
dc.contributor.authorZheng, Jie-
dc.date.accessioned2022-08-24T15:48:41Z-
dc.date.available2022-08-24T15:48:41Z-
dc.date.issued2005-
dc.identifier.citationAcademic Radiology, 2005, v. 12, n. 2, p. 202-209-
dc.identifier.issn1076-6332-
dc.identifier.urihttp://hdl.handle.net/10722/315946-
dc.description.abstractRationale and Objective. To assess the feasibility of combining magnetic resonance (MR) perfusion, angiography, and 3He ventilation imaging for the evaluation of lung function in a porcine model. Materials and Methods. Fourteen consecutive porcine models with externally delivered pulmonary emboli and/or airway occlusions were examined with MR perfusion, angiography, and 3He ventilation imaging. Ultrafast gradient-echo sequences were used for 3D perfusion and angiographic imaging, in conjunction with the use of contrast-agent injections. 2D multiple-section 3He imaging was performed subsequently via the inhalation of hyperpolarized 3He gas. The diagnostic accuracy of MR angiography for detecting pulmonary emboli was determined by two reviewers. The diagnostic confidence for different combinations of MR techniques was rated on the basis of a 5-point grading scale (5 = definite). Results. The sensitivity, specificity, and accuracy of MR angiography for detecting pulmonary emboli were approximately 85.7%, 90.5%, and 88.1%, respectively. The interobserver agreement was very strong (k = 0.82). There was a clear tendency for confidence to increase when first perfusion and then ventilation imaging were added to the angiographic image (Wilcoxon signed ranks test, P = 0.03). Conclusion. The combination of the three methods of MR perfusion, angiography, and 3H ventilation imaging may provide complementary information on abnormal lung anatomy and function. © AUR, 2005.-
dc.languageeng-
dc.relation.ispartofAcademic Radiology-
dc.subjectAngiography-
dc.subjectLung perfusion-
dc.subjectLung ventilation-
dc.subjectMagnetic resonance-
dc.subjectPulmonary embolism-
dc.titleFeasibility of combining MR perfusion, angiography, and <sup>3</sup>He ventilation imaging for evaluation of lung function in a porcine model-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.acra.2004.11.021-
dc.identifier.pmid15721597-
dc.identifier.scopuseid_2-s2.0-13944265632-
dc.identifier.volume12-
dc.identifier.issue2-
dc.identifier.spage202-
dc.identifier.epage209-

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