Dual-phase whole-heart imaging using image navigation in congenital heart disease

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dc.contributor.authorBotnar, René Michael
dc.contributor.authorMoyé, Danielle M.
dc.contributor.authorHussain, Tarique.
dc.contributor.authorTandon, Animesh.
dc.contributor.authorGreil, Gerald F.
dc.contributor.authorDyer, Adrian K.
dc.contributor.authorHenningsson, Markus.
dc.date.accessioned2019-10-17T15:48:00Z
dc.date.available2019-10-17T15:48:00Z
dc.date.issued2018
dc.date.updated2019-10-14T18:38:07Z
dc.description.abstractAbstract Background Dual-phase 3-dimensional whole-heart acquisition allows simultaneous imaging during systole and diastole. Respiratory navigator gating and tracking of the diaphragm is used with limited accuracy. Prolonged scan time is common, and navigation often fails in patients with erratic breathing. Image-navigation (iNAV) tracks movement of the heart itself and is feasible in single phase whole heart imaging. To evaluate its diagnostic ability in congenital heart disease, we sought to apply iNAV to dual-phase sequencing. Methods Healthy volunteers and patients with congenital heart disease underwent dual-phase imaging using the conventional diaphragmatic-navigation (dNAV) and iNAV. Acquisition time was recorded and image quality assessed. Sharpness and length of the right coronary (RCA), left anterior descending (LAD), and circumflex (LCx) arteries were measured in both cardiac phases for both approaches. Qualitative and quantitative analyses were performed in a blinded and randomized fashion. Results In volunteers, there was no significant difference in vessel sharpness between approaches (p > 0.05). In patients, analysis showed equal vessel sharpness for LAD and RCA (p > 0.05). LCx sharpness was greater with dNAV (p < 0.05). Visualized length with iNAV was 0.5 ± 0.4 cm greater than that with dNAV for LCx in diastole (p < 0.05), 1.0 ± 0.3 cm greater than dNAV for LAD in diastole (p < 0.05), and 0.8 ± 0.7 cm greater than dNAV for RCA in systole (p < 0.05). Qualitative scores were similar between modalities (p = 0.71). Mean iNAV scan time was 5:18 ± 2:12 min shorter than mean dNAV scan time in volunteers (p = 0.0001) and 3:16 ± 1:12 min shorter in patients (p = 0.0001). Conclusions Image quality of iNAV and dNAV was similar with better distal vessel visualization with iNAV. iNAV acquisition time was significantly shorter. Complete cardiac diagnosis was achieved. Shortened acquisition time will improve clinical applicability and patient comfort.
dc.fuente.origenBiomed Central
dc.identifier.citationBMC Medical Imaging. 2018 Oct 16;18(1):36
dc.identifier.doi10.1186/s12880-018-0278-0
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/26795
dc.issue.numeroNo. 36
dc.language.isoen
dc.pagina.final11
dc.pagina.inicio1
dc.revistaBMC Medical Imaginges_ES
dc.rightsacceso abierto
dc.rights.holderThe Author(s).
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.otherCardiopatías congénitas - Diagnósticoes_ES
dc.subject.otherCorazón Imagenes_ES
dc.subject.otherImágenes 3Des_ES
dc.titleDual-phase whole-heart imaging using image navigation in congenital heart diseasees_ES
dc.typeartículo
dc.volumenVol. 18
sipa.codpersvinculados1015313
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