APPENDIX P PULL STUDY MARKERS, DATASETS, PROTOCOL SCHEMATIC
P-1
MITRAL VALVE MECHANICS by Neil B. Ingels, Jr. and Matts Karlsson
APPENDIX P PULL STUDY MARKERS, DATASETS, PROTOCOL SCHEMATIC
The PULL STUDY (see results in Chapter 28) was designed to assess the effect of posterior leaflet
pressure on anterior leaflet edge geometry in the closed valve. Figure P1 shows the marker array and
coordinate system used in this study.
Figure P1. Pull study marker locations. Marker #1=LV Apex; #2-4=LV anterior wall; #5-7= LV septum; #8-10=LV posterior wall; #11-13=LV lateral wall; #15-22=mitral annulus; #23,24,25=anterior leaflet edge; #26,27,28=posterior leaflet edge (matching pairs for #24,25,23, respectively); #29,30=anterior papillary muscle tip and base; #31,32=posterior papillary muscle tip and base. Coordinate system (green) centered on saddlehorn Marker #22, with –Z axis through apex (#1), X-Z plane containing Marker #18 (positive X towards #18), positive Y towards Marker #20.
APPENDIX P PULL STUDY MARKERS, DATASETS, PROTOCOL SCHEMATIC
P-2
MITRAL VALVE MECHANICS by Neil B. Ingels, Jr. and Matts Karlsson
Table P1 shows the datasets associated with
the CONTROL and PULL runs for the three
hearts analyzed in Chapter 28.
Figure P2 schematically illustrates the PULL protocol.
TABLE P1 CONTROL
PULL
pul08r23pre.1E
pul08r24pull.1E
pul13r01pre-2frames.1E
pul13r05pull.1E
pul14r01pre.1E
pul14r02pull-2frames.1E
Figure P2. Schematic illustration of the PULL protocol In CTRL, suture is attached to the leading edge of the central posterior leaflet scallop and exteriorized through the LV/LA border. Control run taken with slack suture. In PULL, suture is pulled and this tension maintained to translate the central posterior leaflet scallop laterally while PULL data is recorded during several heartbeats.
