Appendix Table.

Generic Attributes of Image Acquisition Context

Property	rcid#	rtid#	Definition	Examples and Notes
Identification:
Label, image	171		Label for the image	Preliminary, mask, subtraction mask, precontrast, baseline, scout, post-contrast, pre-exercise, post-exercise.
Label, imaging hard copy presentation media, sheet or strip	C, T, M, N		Label for a sheet or strip of image presentation media (e.g., radiographic transparency film, 35-mm cine film)	A coded-entry, text, or numeric value.
Protocol name	C, T		Name of the acquisition protocol	Stress thallium.
Person who performs data acquisition	N		Name of person who performs the data acquisition procedure	Radiologic or electrocardiographic technologist.
Anatomic Conditions:
Anatomic region examined	1		Anatomic region	Upper gastrointestinal tract, stomach, antrum, gastric mucosa.
Anatomic region modifier	2		Modifier of the anatomic region	Left, right, inferior, superior, peripheral, central.
Spatial Conditions:
Imaging subject orientation with respect to gravity	19		Sequence that describes the orientation of the patient with respect to gravity	Typically used to describe PERSON observation subjects.
Imaging subject orientation with respect to gravity, modifier of	20		Patient orientation modifier, required if needed to fully specify the orientation of the patient with respect to gravity	Typically used to describe PERSON observation subjects.
Geometric projection	22		Sequence that describes the projection of the anatomic region of interest on the image receptor	Postero-anterior, antero-posterior, lateral, left posterior oblique.
Geometric projection, cranio-caudad angulation, modifier of	23		Cranio-caudad angulation modifier	Cranio-caudad, cephalad.
Temporal Conditions:
Protocol sequence number	N, T, M		Sequence number of the current stage of the protocol	1, 2, 3,....
Protocol stage name	C, T, N		Name of this stage of the protocol	Rest, stress, arterial, venous, capillary.
Quantitative measurement	N, M, T		Quantitative measurement of time	Various intervals; context dependent.
Date/time	N		Absolute date or time	Context dependent, e.g., data acquisition start time, contrast agent injection start time, time of catheter introduction.
Chemical Conditions:
Radiographic contrast agent	12		Radiographic contrast agent	Sodium diatrizoate, air, barium sulfate.
Interventional drug	10		Interventional drug	Epinephrine, glucagon.
Radiopharmaceutical agent	25		Radiopharmaceutical	Technetium 99-m sulfur colloid.
Additional drug	C, T, N		Any chemical, drug or biological substance; category unrestricted	A coded-entry or text value; this is an unrestricted category.
Vital stain	168		Vital stain administered	Note: Any number of vital stains may be used simultaneously.
Chemical agent administration protocol		14	Attributes of chemical agent administration	For each agent administered: rate, dose, stop/start time, etc.
Administration route, chemical or biological product	11		Drug administration route	For any category of chemical or biologic product.
Dose, chemical or biological product	T, N, M		Dose of chemical or biological product	A text or numeric value.
Timing, chemical or biological product	T, N		Timing of administration of chemical or biological product	A text or numeric value.
Functional Conditions:
Functional conditions present during image acquisition	91		Context dependent	Breath-hold, breathing, phonation, Valsalva maneuver, Mueller maneuver, rest, exercise, static, dynamic, blood pool phase, arterial phase, venous phase, capillary phase.
Physical Conditions:
Physical force applied during image acquisition	89		Context dependent	Inflation, valgus stress, varus stress, compression, distraction, shear stress. Note: Description of any significant physical force applied during image acquisition. Described properties include anatomic sites where force was applied, physical agent through which force was applied, type of force, and magnitude expressed in qualitative or quantitative terms. Zero to many items may be present.
Qualitative modifier of physical force applied during image acquisition	90		Qualitative modifiers	Slight, light, mild, minimal, moderate, firm, full, heavy, strong, maximum, maximum tolerated.
Quantitative measurement	T, N, M		Quantitative measurement of physical force	A numeric or text value.
Measurement units	82		Units of measurement	Cm, mm, μm, ml, kg.
Physical agent used to apply the force	86		Physical agent used to apply the physical force	Angioplasty balloon, compression paddle, knee brace.
Anatomic structure, space, or region to which physical force is applied	1		Anatomic structure, space, or region	Note: Specialized context groups apply to varous modalities and operational or clinical contexts.
Note: rcid# indicates referenced SNOMED DICOM microglossary (SDM) context group identifier (containing the suggested coded-entry value set of the property); rtid#, referenced SDM template identifier (containing a set of related concepts that fully describe the property). C, T, M, and N signify classes of data (i.e., DICOM structured reporting observation classes),18 where C indicates coded-entry data; T, text data; M, numeric measurement; and N, named type (e.g., date, time, person name, bibliographic citation, uniform resource locator, and categorical text) data. All properties for which an rcid# is defined may be conveyed as either coded-entry or text data.