Time-resolved contrast-enhanced MR angiography : value of hemodynamic information in the assessment of vascular diseases

2010
journal article
article
dc.abstract.enBackground: 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.authorMaj, Edytapl
dc.contributor.authorCieszanowski, Andrzejpl
dc.contributor.authorRowiński, Olgierdpl
dc.contributor.authorWojtaszek, Mikołajpl
dc.contributor.authorSzostek, Małgorzatapl
dc.contributor.authorTworus, Robertpl
dc.date.accession2018-09-28pl
dc.date.accessioned2018-09-28T12:15:39Z
dc.date.available2018-09-28T12:15:39Z
dc.date.issued2010pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. 60pl
dc.description.number1pl
dc.description.physical52-60pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume75pl
dc.identifier.articleid878434pl
dc.identifier.eissn1899-0967pl
dc.identifier.issn1733-134Xpl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/57525
dc.identifier.weblinkhttp://archiwum.polradiol.com/abstract/index/idArt/878434pl
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa*
dc.rights.licenceCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subject.entime-resolved magnetic resonance angiographypl
dc.subject.encontrast-enhanced magnetic resonance angiographypl
dc.subject.endigital subtraction angiographypl
dc.subtypeArticlepl
dc.titleTime-resolved contrast-enhanced MR angiography : value of hemodynamic information in the assessment of vascular diseasespl
dc.title.journalPolish Journal of Radiologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
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.contributor.authorpl
Maj, Edyta
dc.contributor.authorpl
Cieszanowski, Andrzej
dc.contributor.authorpl
Rowiński, Olgierd
dc.contributor.authorpl
Wojtaszek, Mikołaj
dc.contributor.authorpl
Szostek, Małgorzata
dc.contributor.authorpl
Tworus, Robert
dc.date.accessionpl
2018-09-28
dc.date.accessioned
2018-09-28T12:15:39Z
dc.date.available
2018-09-28T12:15:39Z
dc.date.issuedpl
2010
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additionalpl
Bibliogr. s. 60
dc.description.numberpl
1
dc.description.physicalpl
52-60
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
75
dc.identifier.articleidpl
878434
dc.identifier.eissnpl
1899-0967
dc.identifier.issnpl
1733-134X
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/57525
dc.identifier.weblinkpl
http://archiwum.polradiol.com/abstract/index/idArt/878434
dc.languagepl
eng
dc.language.containerpl
eng
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.enpl
time-resolved magnetic resonance angiography
dc.subject.enpl
contrast-enhanced magnetic resonance angiography
dc.subject.enpl
digital subtraction angiography
dc.subtypepl
Article
dc.titlepl
Time-resolved contrast-enhanced MR angiography : value of hemodynamic information in the assessment of vascular diseases
dc.title.journalpl
Polish Journal of Radiology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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