study variable attributes

These attributes are grouped with the study variable for purposes of namespace organization. They are modeled after ACR-NEMA conventions [4]. All of these attributes are optional, and have no default value defined.

• start_time - String giving the time and date of the start of the study, in the format ``YYYYMMDD HHMMSS.FFFFFF'', where ``FFFFFF'' is an string representation of fractional seconds. Either the entire time representation, or the fractional seconds, may be omitted if not required.
• start_year - Number giving the year of the start of date the study.
• start_month - Number giving the month (1-12) of the start date of the study.
• start_day - Number giving the day (1-31) of the start date of the study.
• start_hour - Number giving the hour (0-23) of the start time of the study.
• start_minute - Number giving the minute (0-59) of the start time of the study.
• start_seconds - Number giving the seconds (including fractions of a second, if required) of the start time of the study.
• modality - String which represents the imaging modality used, one of: PET__, SPECT, GAMMA, MRI__, MRS__, MRA__, CT___, DSA__, DR___, or label.
• manufacturer - String specifying the name of the imaging device manufacturer.
• device_model - String specifying the model of the imaging device.
• institution - String identifying the institution conducting the study.
• department - String identifying the department conducting the study.
• station_id - String identifying the specific imaging system which generated the image.
• referring_physician - String giving the name of the patient's primary physician.
• attending_physician - String giving the name of the physician administering the examination.
• radiologist - String giving the name of the radiologist interpreting the examination.
• operator - String giving the name of the operator of the imaging device.
• admitting_diagnosis - String description of the admitting diagnosis.
• procedure - String description of the procedure employed.
• study_id - String identifying the study.