Matt Jones, Md, MS, RDMS, RDCS
SONOGRAPHIC FINDINGS ASSOCIATED WITH ACUTE PULMONARY EMBOLISM
- RV dilation, defined as RV/LV basal diameter ratio greater than normal and apical blunting of the RV in multiple windows/views.
- Normal RV/LV basal diameter ratio is 1/3 to 1/2
- Tricuspid Regurgitation may also be present
- If dilated, the RV should be very thin. If it is thick, this may not be an acute change in right heart pressure.
- RV systolic dysfunction, defined as free-wall hypokinesis and/or TAPSE <16 mm.
- TAPSE <10mm is consistent with severe RV dysfunction
- McConnell’s Sign
- Flattening or deviation of the interventricular septum toward the LV.
- Septal abnormalities will first appear during ventricular diastole.
- Also known as the D-sign
- Dilated IVC in response to elevated RA pressures.