Viewing rate and reproducibility of papillary muscle areas in foetal atrioventricular valves using spatio-temporal image correlation in the rendering mode in congenital heart disease

• Published in: The journal of maternal-fetal & neonatal medicine Vol. 28; no. 12; p. 1375
• Main Authors: Rolo, Liliam Cristine, Pietrolucci, Maria Elena, Araujo Júnior, Edward, Barros, Fernanda Silveira Bello, Nardozza, Luciano Marcondes Machado, Martina, Wellington P, Moron, Antonio Fernandes, Arduin, Domenico, Rizzo, Giuseppe
• Format: Journal Article
• Language: English
• Published: England 13.08.2015
• Subjects: Echocardiography, Four-Dimensional; Female; Fetal Heart - diagnostic imaging; Gestational Age; Heart Defects, Congenital - diagnostic imaging; Heart Defects, Congenital - embryology; Heart Valves - diagnostic imaging; Heart Valves - embryology; Humans; Mitral Valve - diagnostic imaging; Mitral Valve - embryology; Observer Variation; Papillary Muscles - diagnostic imaging; Papillary Muscles - embryology; Pregnancy; Reproducibility of Results; Retrospective Studies; Tricuspid Valve - diagnostic imaging; Tricuspid Valve - embryology; Ultrasonography, Prenatal - methods
• ISSN: 1476-4954
• DOI: 10.3109/14767058.2014.954540

To assess the viewing rate and reproducibility of areas of the papillary muscles (PMs) of foetal atrioventricular valves using spatio-temporal image correlation (STIC) in the rendering mode in congenital heart disease (CHD). We retrospectively reviewed 40 4D-STIC volume datasets from different foetal CHD cases at a gestational age of 18w6d–35w6d. The following papillary muscles (PMs) were assessed: antero-lateral (MPAL) and postero-medial (MPPM) to the mitral valve and antero-superior (MPAS), inferior (MPI) and septal (MPS) to the tricuspid valve. To assess the valve viewing rate, percentages (%) were used. The concordance correlation coefficient (CCC) was used to assess inter-observer reliability. Two independent observers concluded that a complete examination of the PMs was impossible in 11 cases, yielding a viewing rate of 72.5%. The complete examination of the PMs of the tricuspid and mitral valves was possible by both examiners in 33/40 (82.5%) and 32/40 (80.0%) cases, respectively. We observed moderate to good inter-observer reliability with CCCs of 0.95, 0.92, 0.97, 0.96 and 0.97 for MPS, MPI, MPAS, MPAL and MPPM, respectively. The viewing rate of PM areas in different CHDs using STIC in the rendering mode was moderate. The inter-observer reproducibility was moderate to good for all PM areas.