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Information about the acquisition itself is stored as attributes of
the MIacquisition variable (again, no dimensions and no values).
- MIprotocol
- String description of the protocol for
image acquisition.
- MIscanning_sequence
- String description of type of data
taken (eg. for MR -- IR, SE, PS, etc.).
- MIrepetition_time
- Time in seconds between pulse
sequences.
- MIecho_time
- Time in seconds between the middle of a 90
degree pulse and the middle of spin echo production.
- MIinversion_time
- Time in seconds after the middle of
the inverting RF pulse to the middle of the 90 degree pulse to
detect the amount of longitudinal magnetization.
- MInum_averages
- Number of times a given pulse sequence
is repeated before any parameter is changed.
- MIimaging_frequency
- Precession frequency in Hz of the
imaged nucleus.
- MIimaged_nucleus
- String specifying the nucleus that is
resonant at the imaging frequency.
- MIradionuclide
- String specifying the isotope administered.
- MIcontrast_agent
- String identifying the contrast or
bolus agent.
- MIradionuclide_halflife
- Half-life of radionuclide in
seconds.
- MItracer
- String identifying tracer labelled with
radionuclide that was injected.
- MIinjection_time
- String giving time (and date) of
injection.
- MIinjection_year
- Integer giving year of injection.
- MIinjection_month
- Integer giving month (1-12) of
injection.
- MIinjection_day
- Integer giving day (1-31) of
injection.
- MIinjection_hour
- Integer giving hour (0-23) of
injection.
- MIinjection_minute
- Integer giving minute (0-59) of
injection.
- MIinjection_seconds
- Floating-point value giving
seconds of injection.
- MIinjection_length
- Length of time of injection (in
seconds).
- MIinjection_dose
- Total dose of radionuclide or contrast
agent injected (in units specified by MIdose_units).
- MIdose_units
- String giving units of dose.
- MIinjection_volume
- Volume of injection in mL.
- MIinjection_route
- String identifying administration
route of injection.
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Robert VINCENT
2004-05-28