{ "cells": [ { "cell_type": "markdown", "id": "5d037743", "metadata": { "id": "5d037743" }, "source": [ "# Exploring MIMIC-III" ] }, { "cell_type": "markdown", "id": "fbae8e9b", "metadata": { "id": "fbae8e9b" }, "source": [ "Let's begin by exploring data in the MIMIC-III Waveform Database.\n", "\n", "Our **objectives** are to:\n", "- Become familiar with the file structure\n", "- Find out which signals are present in selected records and segments, and how long the signals last.\n", "- Search for records that contain signals of interest.\n", "- Load waveforms using the WFDB toolbox.\n", "- Plot one minute of signals from a segment of data\n", "- Look more closely at the shape of the PPG pulse waves" ] }, { "cell_type": "markdown", "id": "0b240726", "metadata": { "id": "0b240726" }, "source": [ "
Resource: You can find out more about the MIMIC-III Waveform Database here.
\n", "Resource: You can find out more about the WFDB package here.
\n", "Q: Can you print the names of the last five records?
Hint: in Python, the last five elements can be specified using '[-5:]'
Question: Is this enough data for a study? Consider different types of studies, e.g. assessing the performance of a previously proposed algorithm to estimate BP from the PPG signal, vs. developing a deep learning approach to estimate BP from the PPG.
\n", "Extension: Have a look at the files which make up this record here (NB: you will need to scroll to the bottom of the page).
\n", "Resource: You can find out more about the class representing single segment WFDB records here.
\n", "Note: the name given to PPG signals in the database is 'PLETH'.
Question: How do these pulse waves compare to those extracted from the MIMIC Database? Which is most similar?