Parasternal Long Axis view of a mouse neonate heart imaged at postnatal day 4. LV, left ventricle. RVOT, right ventricular outflow track. Ao root, aortic …

Left ventricle of neonatal mouse at postnatal day 4, imaged in parasternal short axis view, with papillary muscles labeled. …

PW Doppler of mitral blood flow in a postnatal day 9 mouse taken from an apical 4 chamber view, with related cardio measurements.  …