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Time-resolved contrast-enhanced MR angiography : value of hemodynamic information in the assessment of vascular diseases
time-resolved magnetic resonance angiography
contrast-enhanced magnetic resonance angiography
digital subtraction angiography
Bibliogr. s. 60
Background: To assess the quality of images obtained from time-resolved MRA together with the accuracy of this technique in diagnosing vascular diseases and the usefulness of haemodynamic information provided by this method. Material/Methods: The study group included 120 patients with different vascular pathologies excluding of intracranial vessels. All patients underwent time-resolved MRA on 1.5T unit. Results were correlated with other imaging techniques: DSA (n=36), CTA (n=28), Doppler ultrasound (n=71) and intraoperative findings (n=10). Independently, two radiologists evaluated the MRA studies assessing the quality of the images in a 3 point scale (3 - good, 1 - poor), as well as the presence or absence of haemodynamic information (3 - relevant dynamic information, 2 - irrelevant dynamic information, 1 - lack of dynamic information) for different vascular pathologies. Results: Mean quality of MRA examinations was 2.94 (reader A and B) and was similar for different pathologies (kappa value =0.757). The mean grading (reader A and B) for the presence of dynamic information was above 2 for the following pathologies: celiac artery branch pseudoaneurysm (3), vascular malformation (3), subclavian steal syndrome (2.5), Leriche's syndrome (2.25), aortic dissection (2.06), renal artery stenosis (2.03); and below 2 for: pelvic arterial occlusive disease (1.75), abdominal aortic aneurysm (1.31), carotid artery stenosis (1.1), thoracic aortic aneurysm (1.0). Kappa value was 0.802. The sensitivity was 95%, specificity 96% and positive predictive value 98%. Conclusions: Time-resolved MRA provides good quality images and enables reliable diagnosis of vascular pathologies.
dc.abstract.en | Background: To assess the quality of images obtained from time-resolved MRA together with the accuracy of this technique in diagnosing vascular diseases and the usefulness of haemodynamic information provided by this method. Material/Methods: The study group included 120 patients with different vascular pathologies excluding of intracranial vessels. All patients underwent time-resolved MRA on 1.5T unit. Results were correlated with other imaging techniques: DSA (n=36), CTA (n=28), Doppler ultrasound (n=71) and intraoperative findings (n=10). Independently, two radiologists evaluated the MRA studies assessing the quality of the images in a 3 point scale (3 - good, 1 - poor), as well as the presence or absence of haemodynamic information (3 - relevant dynamic information, 2 - irrelevant dynamic information, 1 - lack of dynamic information) for different vascular pathologies. Results: Mean quality of MRA examinations was 2.94 (reader A and B) and was similar for different pathologies (kappa value =0.757). The mean grading (reader A and B) for the presence of dynamic information was above 2 for the following pathologies: celiac artery branch pseudoaneurysm (3), vascular malformation (3), subclavian steal syndrome (2.5), Leriche's syndrome (2.25), aortic dissection (2.06), renal artery stenosis (2.03); and below 2 for: pelvic arterial occlusive disease (1.75), abdominal aortic aneurysm (1.31), carotid artery stenosis (1.1), thoracic aortic aneurysm (1.0). Kappa value was 0.802. The sensitivity was 95%, specificity 96% and positive predictive value 98%. Conclusions: Time-resolved MRA provides good quality images and enables reliable diagnosis of vascular pathologies. | pl |
dc.contributor.author | Maj, Edyta | pl |
dc.contributor.author | Cieszanowski, Andrzej | pl |
dc.contributor.author | Rowiński, Olgierd | pl |
dc.contributor.author | Wojtaszek, Mikołaj | pl |
dc.contributor.author | Szostek, Małgorzata | pl |
dc.contributor.author | Tworus, Robert | pl |
dc.date.accession | 2018-09-28 | pl |
dc.date.accessioned | 2018-09-28T12:15:39Z | |
dc.date.available | 2018-09-28T12:15:39Z | |
dc.date.issued | 2010 | pl |
dc.date.openaccess | 0 | |
dc.description.accesstime | w momencie opublikowania | |
dc.description.additional | Bibliogr. s. 60 | pl |
dc.description.number | 1 | pl |
dc.description.physical | 52-60 | pl |
dc.description.version | ostateczna wersja wydawcy | |
dc.description.volume | 75 | pl |
dc.identifier.articleid | 878434 | pl |
dc.identifier.eissn | 1899-0967 | pl |
dc.identifier.issn | 1733-134X | pl |
dc.identifier.project | ROD UJ / OP | pl |
dc.identifier.uri | https://ruj.uj.edu.pl/xmlui/handle/item/57525 | |
dc.identifier.weblink | http://archiwum.polradiol.com/abstract/index/idArt/878434 | pl |
dc.language | eng | pl |
dc.language.container | eng | pl |
dc.rights | Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa | * |
dc.rights.licence | CC-BY-NC-ND | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl | * |
dc.share.type | otwarte czasopismo | |
dc.subject.en | time-resolved magnetic resonance angiography | pl |
dc.subject.en | contrast-enhanced magnetic resonance angiography | pl |
dc.subject.en | digital subtraction angiography | pl |
dc.subtype | Article | pl |
dc.title | Time-resolved contrast-enhanced MR angiography : value of hemodynamic information in the assessment of vascular diseases | pl |
dc.title.journal | Polish Journal of Radiology | pl |
dc.type | JournalArticle | pl |
dspace.entity.type | Publication |
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