Journalartikel

Jahr der Veröffentlichung: 1999

Seiten: 54-60

Zeitschrift: RöFo: Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren

Bandnummer: 170

Heftnummer: 1

ISSN: 0936-6652

DOI Link: https://doi.org/10.1055/s-2007-1011007

Verlag: Georg Thieme Verlag

Abstract: 
Purpose: To assess the accuracy of right- (RV) and left-ventricular (LV) heart volume and muscle mass determinations by cine MR imaging. Materials and Methods: Ten subjects were examined twice by a segmented, EGG-triggered cine sequence in the short axis plane and breath-hold technique by two independent operators and again 4 weeks later by one of the operators. The contours were evaluated manually by two independent examiners and again four weeks later by one of the examiners. LV and RV end-diastolic and end-systolic volumes, stroke volume, cardiac output, ejection fraction (EF); and left-ventricular muscle mass were compared. Results: The RV evaluation variations (RV-EF: 6.46%) were higher than the LV (LV-EF: 4.46%). The intra-examiner variations were smaller than the inter-examiner variations. The generally operators did not cause a significantly increased variation (LV-EF: 5.77%). In contrast, the repeat examinations at different times did lead to a significant increase in the variation (LV-EF: 10.15%). Conclusions: The rapid EGG-triggered cine MRI in breath-hold technique allows the simultaneous RV and LV, artefact-free determination of heart volumes and LV muscle mass. The LV volumes can be determined more accurately than the RV. The examiner has a distinct influence on the accuracy, the operator has a lesser effect. Physiological fluctuations of cardiac activity significantly influence the follow-up.

Harvard-Zitierstil: Rominger, M., Bachmann, G., Geuer, M., Puzik, M., Boedeker, R., Ricken, W., et al. (1999) Genauigkeit der rechts- und links-ventrikulären Herzvolumen- und linksventrikulären Muskelmassenbestimmung mittels Cine MRT in Atemanhaltetechnik, RöFo: Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren, 170(1), pp. 54-60. https://doi.org/10.1055/s-2007-1011007

APA-Zitierstil: Rominger, M., Bachmann, G., Geuer, M., Puzik, M., Boedeker, R., Ricken, W., & Rau, W. (1999). Genauigkeit der rechts- und links-ventrikulären Herzvolumen- und linksventrikulären Muskelmassenbestimmung mittels Cine MRT in Atemanhaltetechnik. RöFo: Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 170(1), 54-60. https://doi.org/10.1055/s-2007-1011007