Retrograde catheterization showed a pulmonary-capillary-left-ventricle diastolic gradient of 13 mm. of mercury, a calculated valve area of 1.0 square centimeter and no regurgitation at angiography.

DIRECT hemodynamic study of the left ventricle has been accomplished in recent years by many approaches. In infancy and childhood it is often possible to pass a catheter into this ventricle via the ...

We describe a novel technique to perform whole-body perfusion fixation in mice with specific relevance to micro-imaging. With the guidance of high-frequency ultrasound imaging, we were able to perfuse ...

The heart pumps blood around the body. If the heart does not work as it should, a person may need to undergo a heart procedure as part of their treatment. Some heart conditions are manageable with ...

The Society for Cardiovascular Angiography & Interventions (SCAI) and the Heart Rhythm Society (HRS) have published the first rigorous, evidence-based, multisociety recommendations to guide the use of ...