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mit2pdf

Utility to generate an annotated PDF from a WFDB MIT record.

Getting started

This tool relies on the WFDB software package for signal and annotation reading purposes. Once this dependency is satisfied, you can generate an annotated PDF from a record or a record fragment as shown in the following examples:

  • Limit result to 50 seconds, use atr annotator and plot pages of 5 seconds:

      ./mit2pdf -r data/105 -a atr -l 50 -d result.pdf -p 5

  • Plot 20 seconds from second 00:24, hide grid and show only N,V and + annotations :

      ./mit2pdf -r data/207 -o 00:00:24 -l 20 --noGrid --filter N,V,\+

  • Plot the full record with the default options:

      ./mit2pdf -r data/207

    (!) Exporting a full 30 min record may take around half a minute (or five times that with grid) and result in a pdf document of 180 pages.

Annotations

All annotation codes are supported, but for a subset of them a more convenient visualization is implemented:

  • Beat annotations: N, L, R, B, A, a, J, S, V, r, F, e, j, n, E, /, f, Q, ?
  • Wave start and end annotations: (,)
  • P-wave and T-wave peaks: p, t
  • R-peak: Use a note code " with an r in the aux field (Non standard)

For annotations non listed above, two vertical marks will be drawn at the annotation instant, with the annotation code and the content of the aux field as a string if present.

Examples

Fragment from the record 100 of the MIT-BIH Arrhythmia Database:

mit2pdf example

Fragment from the record 207 of the MIT-BIH Arrhythmia Database:

mit2pdf example

Available options:

-r RECORD --record=RECORD Record to print

-a ANNOTATOR --annotator=ANNOTATOR Annotator(s) to use. Use , to separate more than one (default=atr).

-o OFFSET --offset=OFFSET Offset to start printing in seconds or as an absolute instant in the format hh:mm:ss (default=0)

-l LIMIT --limit=LIMIT Limit to print in seconds or as an absolute instant in the format hh:mm:ss (default=0)

-p PAGESIZE --pageSize=PAGESIZE Number of seconds per page (default=10)

-f FILTER --filter=FILTER Filter beat classes shown Ex:N,V

-d OUTPUT --destination=OUTPUT Output file

--sameScale Use the same scale in all pages (reduces space optimization)

--noGrid Hide grid