skip to main content
Idioma:

Time-resolved tracking of the atrioventricular plane displacement in Cardiovascular Magnetic Resonance (CMR) images

Seemann, Felicia ; Pahlm, Ulrika ; Steding-Ehrenborg, Katarina ; Ostenfeld, Ellen ; Erlinge, David ; Dubois-Rande, Jean-Luc ; Jensen, Svend Eggert ; Atar, Dan ; Arheden, Håkan ; Carlsson, Marcus ; Heiberg, Einar

BMC medical imaging, 2017-02, Vol.17 (1), p.19-19, Article 19 [Periódico revisado por pares]

England: BioMed Central

Texto completo disponível

Citações Citado por
  • Título:
    Time-resolved tracking of the atrioventricular plane displacement in Cardiovascular Magnetic Resonance (CMR) images
  • Autor: Seemann, Felicia ; Pahlm, Ulrika ; Steding-Ehrenborg, Katarina ; Ostenfeld, Ellen ; Erlinge, David ; Dubois-Rande, Jean-Luc ; Jensen, Svend Eggert ; Atar, Dan ; Arheden, Håkan ; Carlsson, Marcus ; Heiberg, Einar
  • Assuntos: Aged ; Algorithms ; Biomedical Laboratory Science/Technology ; Biomedicinsk laboratorievetenskap/teknologi ; Female ; Heart Atria - diagnostic imaging ; Heart Ventricles - diagnostic imaging ; Humans ; Magnetic Resonance Imaging, Cine - methods ; Male ; Medical and Health Sciences ; Medical Biotechnology ; Medicin och hälsovetenskap ; Medicinsk bioteknologi ; Observer Variation ; Principal Component Analysis
  • É parte de: BMC medical imaging, 2017-02, Vol.17 (1), p.19-19, Article 19
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Atrioventricular plane displacement (AVPD) is an indicator for systolic and diastolic function and accounts for 60% of the left ventricular, and 80% of the right ventricular stroke volume. AVPD is commonly measured clinically in echocardiography as mitral and tricuspid annular plane systolic excursion (MAPSE and TAPSE), but has not been applied widely in cardiovascular magnetic resonance (CMR). To date, there is no robust automatic algorithm available that allows the AVPD to be measured clinically in CMR with input in a single timeframe. This study aimed to develop, validate and provide a method that automatically tracks the left and right ventricular AVPD in CMR images, which can be used in the clinical setting or in applied cardiovascular research in multi-center studies. The proposed algorithm is based on template tracking by normalized cross-correlation combined with a priori information by principal component analysis. The AVPD in each timeframe is calculated for the left and right ventricle separately using CMR long-axis cine images of the 2, 3, and 4-chamber views. The algorithm was developed using a training set (n = 40), and validated in a test set (n = 113) of healthy subjects, athletes, and patients after ST-elevation myocardial infarction from 10 centers. Validation was done using manual measurements in end diastole and end systole as reference standard. Additionally, AVPD, peak emptying velocity, peak filling velocity, and atrial contraction was validated in 20 subjects, where time-resolved manual measurements were used as reference standard. Inter-observer variability was analyzed in 20 subjects. In end systole, the difference between the algorithm and the reference standard in the left ventricle was (mean ± SD) -0.6 ± 1.9 mm (R = 0.79), and -0.8 ± 2.1 mm (R = 0.88) in the right ventricle. Inter-observer variability in end systole was -0.6 ± 0.7 mm (R = 0.95), and -0.5 ± 1.4 mm (R = 0.95) for the left and right ventricle, respectively. Validation of peak emptying velocity, peak filling velocity, and atrial contraction yielded lower accuracy than the displacement measures. The proposed algorithm show good agreement and low bias with the reference standard, and with an agreement in parity with inter-observer variability. Thus, it can be used as an automatic method of tracking and measuring AVPD in CMR.
  • Editor: England: BioMed Central
  • Idioma: Inglês;Norueguês;Sueco
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.