Measure ejection fraction
The ejection fraction is defined as:
$$\frac{V_{max} - V_{min}}{V_{max}}$$
…where \(V\) is left ventricle volume for one 3D timepoint.
To close our investigation, plot slices from the maximum and minimum volumes by analyzing the volume time series (ts). Then, calculate the ejection fraction.
After calculating the ejection fraction, review the chart below. Should this patient be concerned?
This exercise is part of the course
Biomedical Image Analysis in Python
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Get index of max and min volumes
tmax = ____(ts)
tmin = ____
# Plot the largest and smallest volumes
fig, axes = plt.subplots(2,1)
axes[0].imshow(____, vmax=160)
axes[1].imshow(____, vmax=160)
format_and_render_plots()