Three-dimensional regional dynamics of the normal mitral anulus during left ventricular ejection

The Journal of Thoracic and Cardiovascular Surgery
Julie R GlassonD Craig Miller

Abstract

The mitral anulus is a dynamic structure that undergoes alterations in size and shape throughout the cardiac cycle, contracting during systole. Numerous reports have shown this systolic orifice reduction to be due chiefly to posterior annular contraction, whereas the anterior perimeter was unchanged. Segmental motion of the mitral anulus from true in vivo three-dimensional data, however, has not been described. We used radiopaque markers and simultaneous biplane videofluoroscopy to measure the lengths of mitral anular segments in seven closed-chest, sedated dogs. Eight markers were placed equidistant from each other around the mitral anulus, As viewed from the left atrium, segment 1 began at the posteromedial commissure, and the remaining segments were numbered sequentially clockwise around the anulus (that is, the posterior mitral anulus encompassed segments 1 to 4 and the anterior anulus encompassed segments 5 to 8). Marker image coordinates obtained from two orthogonal views 7 to 12 days after implantation were merged to construct three-dimensional marker coordinates at end-diastole and end-systole. From end-diastole to end-systole, mean annular area decreased by 11% +/- 8% (5.5 +/- 0.9 cm2 to 4.9 +/- 0.8 cm2, p = 0.005) and...Continue Reading

References

Apr 11, 1991·Cardiovascular Drugs and Therapy·J D SchipkeD Burkhoff
Apr 1, 1991·Computers and Biomedical Research, an International Journal·M A Niczyporuk, D C Miller
Apr 1, 1989·The Annals of Thoracic Surgery·T E DavidR J Burns
Jun 1, 1988·Circulation·D A Kass, W L Maughan
Oct 1, 1985·The Journal of Surgical Research·D AlyonoR W Anderson
Oct 1, 1984·Journal of the American College of Cardiology·I KronzonS B Colvin
Oct 1, 1982·The Anatomical Record·M A Fernandez-Teran, J M Hurle
Mar 1, 1994·Journal of Cardiac Surgery·G L van Rijk-ZwikkerH A Huysmans
Dec 1, 1950·Annals of Internal Medicine·H L SMITHE J BALDES

❮ Previous
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Citations

Feb 22, 2011·Annals of Biomedical Engineering·Manuel K RauschEllen Kuhl
Nov 14, 1997·The Annals of Thoracic Surgery·J H GormanL H Edmunds
Aug 1, 1997·Cardiovascular Surgery : Official Journal of the International Society for Cardiovascular Surgery·K S KunzelmanR P Cochran
Nov 16, 2007·Critical Care : the Official Journal of the Critical Care Forum·Jan Poelaert, Carl Roosens
Sep 17, 2013·The Journal of Thoracic and Cardiovascular Surgery·Morten O JensenSten L Nielsen
Apr 6, 2000·The Annals of Thoracic Surgery·A M GillinovE H Blackstone
Feb 19, 2011·The Journal of Thoracic and Cardiovascular Surgery·Morten O JensenSten L Nielsen
Jul 2, 2010·The Journal of Thoracic and Cardiovascular Surgery·Hosam FawzyLee Errett
Sep 22, 2009·The Annals of Thoracic Surgery·Rakesh M SuriHartzell V Schaff
Mar 11, 2015·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Marcin MalinowskiTomasz A Timek
Jan 22, 2009·The Journal of Thoracic and Cardiovascular Surgery·Paolo FerrazziEugenio Quaini
Oct 7, 2004·The Annals of Thoracic Surgery·Landi M ParishJoseph H Gorman
Jun 22, 2010·IEEE Transactions on Medical Imaging·Robert J SchneiderRobert D Howe
Feb 1, 1997·The Journal of Thoracic and Cardiovascular Surgery·M KomedaD C Miller
Sep 28, 2010·The Annals of Thoracic Surgery·Feroze MahmoodKamal R Khabbaz
Nov 26, 2009·The Annals of Thoracic Surgery·Feroze MahmoodKamal R Khabbaz
Jul 22, 2015·Cardiovascular Engineering and Technology·Elizabeth H StephensK Jane Grande-Allen
Nov 26, 2002·The Journal of Thoracic and Cardiovascular Surgery·Patrick M McCarthy
Oct 24, 2000·The Journal of Thoracic and Cardiovascular Surgery·D T LaiD C Miller
Aug 12, 1998·The Journal of Thoracic and Cardiovascular Surgery·J R GlassonD C Miller
Apr 16, 1998·The Journal of Thoracic and Cardiovascular Surgery·J H GormanL H Edmunds
Jan 27, 1999·The Journal of Thoracic and Cardiovascular Surgery·J R GlassonD C Miller
Feb 27, 1999·The Journal of Thoracic and Cardiovascular Surgery·P DagumD C Miller
Sep 15, 2009·The Journal of Thoracic and Cardiovascular Surgery·Akinobu ItohD Craig Miller
Dec 3, 2014·Journal of Cardiothoracic and Vascular Anesthesia·Andrew Maslow
Sep 29, 2006·Asian Cardiovascular & Thoracic Annals·Wolfgang A GoetzCarlos M G Duran
Apr 29, 2009·Journal of Korean Medical Science·Jun KwanWoo-Hyung Lee
Oct 17, 2006·Heart Failure Reviews·Joseph H GormanRobert C Gorman
May 16, 2012·Journal of Materials Science. Materials in Medicine·Bo WangJun Liao
May 15, 2007·American Journal of Physiology. Heart and Circulatory Physiology·C CarlhällN B Ingels
Mar 5, 1998·The American Journal of Physiology·M O KarlssonN B Ingels
Feb 1, 1997·Artificial Organs·A HurléJ M Revuelta
Mar 14, 2001·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·K E Schober, V L Fuentes
May 6, 2008·The Journal of Thoracic and Cardiovascular Surgery·Ruediger LangeRobert Bauernschmitt
Oct 27, 2009·The Annals of Thoracic Surgery·Pier Giorgio BrunoGermano Di Credico

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