Background: Recent technical developments have resulted in high-resolution real time three-dimensional echocardiography (RT3DE). The purpose of this study was to investigate the beneficial role of parasternal-acquired images in addition to apical-acquired images during contrast stress RT3DE. Methods: The study comprised 30 consecutive patients (52 ± 11 years, 18 males) with chest pain referred for routine stress testing. The contrast RT3DE images were acquired from the apical and parasternal window with a Sonos 7500 echo system attached to a X4 matrix array transducer. Results: From the apical and parasternal acquisition, 464 segments (91%) and 267 segments (52%) could be analyzed, respectively (P < 0.001). From the apical window, more basal segments were not analyzable (22 of 180, 12% vs. 24 of 330, 7%; P = 0.06). From the parasternal window, more apical segments were not analyzable (117 of 150, 78% vs. 126 of 360, 35%; P < 0.01). The mean image quality index of the 464 analyzable segments from the apical-acquired images was 2.43. Fourteen of 180 basal segments (8%), 12 of 180 midventricular segments (7%) and 2 of 150 apical segment (1%) were only available with parasternal data acquisition. In addition to these 28 segments, 79 segments (15%) already visualized from the apical window improved in quality. The overall mean image quality index, now assessed from 492 (96%) of all segments, using both the apical and parasternal acquired data, improved to 2.74 (P < 0.05). Conclusions: Addition of parasternal to apical acquisition of contrast RT3DE data can decrease the number of nonvisualized segments and improve mean image quality.

Additional Metadata
Keywords Apical, Data acquisition, Image quality, Parasternal, Real time three-dimensional echocardiography
Persistent URL dx.doi.org/10.1111/j.1540-8175.2007.00524.x, hdl.handle.net/1765/36165
Citation
Nemes, A, Geleijnse, M.L, Vletter, W.B, Krenning, B.J, Soliman, O.I.I, & ten Cate, F.J. (2007). Role of parasternal data acquisition during contrast enhanced real-time three-dimensional echocardiography. Echocardiography: a journal of cardiovascular ultrasound and allied techniques, 24(10), 1081–1085. doi:10.1111/j.1540-8175.2007.00524.x