3D geometry of a normal tricuspid annulus during systole: a comparison study with the mitral annulus using real-time 3D echocardiography.
AimThis study was done to explore the 3D geometry of the normal tricuspid annulus and compare it with the mitral annulus (MA), using real-time 3D echocardiography (RT3DE) and newly developed 3D computer software.MethodsThirteen left ventricular (LV) and 13 right ventricular (RV) volumetric images we...
| Publicado en: | European Journal of Echocardiography Vol. 8; no. 5; pp. 375 - 384 |
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| Autores principales: | , , , , , , , |
| Formato: | diagnostic images equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Oct2007
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106191979&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106191979 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15252167 NYG jtl: European Journal of Echocardiography issn: 15252167 maglogo: N pubinfo: dt: Oct2007 vid: 8 iid: 5 pid: 622 pub: Oxford University Press / USA artinfo: ui: 106191979 2009685151 10.1016/j.euje.2006.07.010 NLM16962828 106191979 ppf: 375 ppct: 9 formats: fmt: @attributes: type: P tig: atl: 3D geometry of a normal tricuspid annulus during systole: a comparison study with the mitral annulus using real-time 3D echocardiography. aug: au: Kwan J Kim G Jeon M Kim D Shiota T Thomas JD Park K Lee W affil: Department of Cardiology, Inha University Hospita, 7-206, 3-Ga, Shinheung-Dong, Jung-Gu, Inchon 400-711, South Korea; kuonmd@inha.ac.kr sug: subj: Echocardiography, Three-Dimensional Mitral Valve Ultrasonography Systole Tricuspid Valve Ultrasonography Adult Comparative Studies Computer Simulation Descriptive Statistics Female Funding Source Male Mitral Valve Physiology T-Tests Tricuspid Valve Physiology Human Adult: 19-44 years Female Male ab: AimThis study was done to explore the 3D geometry of the normal tricuspid annulus and compare it with the mitral annulus (MA), using real-time 3D echocardiography (RT3DE) and newly developed 3D computer software.MethodsThirteen left ventricular (LV) and 13 right ventricular (RV) volumetric images were obtained using RT3DE from normal subjects. LV and RV volumetric data were segmented into 16 rotational apical planes (angle increment = 11.25 degrees) around the rotational axis from the apex through the center of two annuli, using newly developed 3D software (TomTec, Co., Munich, Germany). Two hinge points of the MA and the TA were traced in each plane during early and late systole. The MA and the TA were then automatically reconstructed with those 32 traced points. 3D surface (3DMAA, 3DTAA) and 2D projected areas (2DMAA, 2DTAA) of the annuli were calculated automatically as well, from those fitted data. For a comparison between the two annuli, the 3D and 2D area measurements of both annuli were corrected (c) according to the height of each patient (c2DMAA, c2DTAA, c3DMAA, and c3DTAA). Non-planarity of the annuli was estimated by their non-planar angles (MA: the angle between the anterior and posterior parts of the annulus; TA: the angle between the septal and free wall parts of the annulus).ResultsThe TA revealed a less non-planar saddle shape than did the MA, which had a significantly wider non-planar angle (167.7 +/- 3.2 vs 145.5 +/- 6.1 degrees, p < 0.01) and a round or oval appearance on the projected view. The c2DTAA was significantly larger than the c2DMAA during early systole (p < 0.01). However, there was no significant difference between the c3DTAA and c3DMAA during early and late systole (p > 0.01).ConclusionWe assessed the 3D geometry of the MA and the TA by 3D reconstruction using RT3DE and newly developed computer software. The TA had a less non-planar shape compared with the MA, with either a round or oval appearance on the projected view. pubtype: Academic Journal doctype: diagnostic images equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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