Infographics
Topics of general interest:
Red/above baseline = flow towards the US beam
Blue/below baseline = flow away from the US beam
This does not mean pericardial effusion is associated with lung B-lines. Its a general advice to r/o pericardial effusion if you see plump IVC, especially in dialysis patients
Focused echocardiography: general stuff
Cardiac views and chambers: anatomy
IVC – aorta anatomic correlation 
PSAX aortic valve level 
Cardiac views and chambers: Functional assessment
LVOT Doppler technical considerations 
TAPSE 
Tricuspid S’ 
Pertinent to isolated IVC ultrasound 
RVOT Doppler 
Cardiac chamber quantification
Right ventricular size
Pocket guide for pericardial tamponade
Diastolic dysfunction
Diastolic function in combination with volume status determines LV filling pressures, which when elevated
cause the cardinal symptoms of heart failure. Parameters commonly measured to assess different aspects of LV filling pressures are indicated in brown.
Myocardial segments
Valves (swipe left or right)
Venous Doppler
Ultrasound Patterns Across the Spectrum of right atrial pressure (RAP) from Tang, et al. JACC Heart Fail. 2016;4(8):683-686. 
Changes in portal vein color and waveform with increasing right atrial pressure (RAP) 
Portal vein waveform: normal and cirrhosis 
The Venous Excess UltraSound grading
Lung ultrasound:
Abdomen and others:
Cross-sectional anatomy demonstrating the relationship between IVC and portal vein