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Grayscale Softcopy Presentation StateCIOD
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Pseudo-Color Softcopy Presentation StateCIOD
Blending Softcopy Presentation StateCIOD
Basic Structured DisplayCIOD
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Variable Modality LUT Softcopy Presentation StateCIOD
Basic Voice Audio WaveformCIOD
12-Lead ECGCIOD
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Hemodynamic WaveformCIOD
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Respiratory WaveformCIOD
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Routine Scalp ElectroencephalogramCIOD
ElectromyogramCIOD
ElectrooculogramCIOD
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Multi-channel Respiratory WaveformCIOD
Body Position WaveformCIOD
General 32-bit ECGCIOD
Basic Text SRCIOD
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Key Object Selection DocumentCIOD
Mammography CAD SRCIOD
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Procedure LogCIOD
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Colon CAD SRCIOD
Macular Grid Thickness and Volume ReportCIOD
Implantation Plan SR DocumentCIOD
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Extensible SRCIOD
Acquisition Context SRCIOD
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Ophthalmic Photography 8 Bit ImageCIOD
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Stereometric RelationshipCIOD
Hanging ProtocolCIOD
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SegmentationCIOD
Ophthalmic Tomography ImageCIOD
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Generic Implant TemplateCIOD
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RT Beams Delivery InstructionCIOD
Ophthalmic Visual Field Static Perimetry MeasurementsCIOD
Intravascular Optical Coherence Tomography ImageCIOD
Ophthalmic Thickness MapCIOD
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Tractography ResultsCIOD
RT Brachy Application Setup Delivery InstructionCIOD
Planar MPR Volumetric Presentation StateCIOD
Volume Rendering Volumetric Presentation StateCIOD
Content Assessment ResultsCIOD
CT Performed Procedure ProtocolCIOD
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Enhanced SeriesMModule - Series
CT Protocol SeriesMModule - Series
Frame of ReferenceMModule - Frame of Reference
General EquipmentMModule - Equipment
Enhanced General EquipmentMModule - Equipment
Protocol ContextMModule - Procedure Protocol
Patient Protocol ContextUModule - Procedure Protocol
InstructionsUModule - Procedure Protocol
(0018,9914) Instruction Sequence1Sequence
(0018,9915) Instruction Index1Unsigned Short
(0018,9916) Instruction Text1Long String
(0018,9917) Instruction Description3Unlimited Text
(0018,9918) Instruction Performed Flag2CCode String
(0018,9919) Instruction Performed DateTime2CDate Time
(0018,991A) Instruction Performance Comment3Unlimited Text
Patient PositioningUModule - Procedure Protocol
Performed CT AcquisitionUModule - Procedure Protocol
Performed CT ReconstructionUModule - Procedure Protocol
Performed StorageUModule - Procedure Protocol
SOP CommonMModule - Procedure Protocol
CT Defined Procedure ProtocolCIOD
Protocol ApprovalCIOD
XA Performed Procedure ProtocolCIOD
XA Defined Procedure ProtocolCIOD
Ophthalmic Optical Coherence Tomography En Face ImageCIOD
Ophthalmic Optical Coherence Tomography B-scan Volume AnalysisCIOD
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RT Physician IntentCIOD
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RT Radiation Record SetCIOD
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Tomotherapeutic Radiation RecordCIOD
Robotic-Arm Radiation RecordCIOD
RT Radiation Set Delivery InstructionCIOD
RT Treatment PreparationCIOD
Enhanced RT ImageCIOD
Enhanced Continuous RT ImageCIOD
RT Patient Position Acquisition InstructionCIOD
Microscopy Bulk Simple AnnotationsCIOD
InventoryCIOD
Photoacoustic ImageCIOD
Confocal Microscopy ImageCIOD
Confocal Microscopy Tiled Pyramidal ImageCIOD
Basic DirectoryCIOD

Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 18 April 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Instruction Sequence Attribute

Tag(0018,9914)
TypeRequired (1)
KeywordInstructionSequence
Value Multiplicity1
Value RepresentationSequence (SQ)

Instructions relating to preparation and performance of the Protocol.

See Section C.34.7.1.

One or more Items shall be included in this Sequence.

Section C.34.7.1

C.34.7.1 Instruction Sequence

This Sequence describes instructions to be performed by the scanner staff in conjunction with the Protocol. The instructions are generally limited to activities that happen inside the scan suite and might include

  • preparation of the scanner (e.g., running a particular calibration, mounting a head holder or patient grab handles on the table),

  • preparation of the patient (e.g., asking if they have fasted, placing padding or shielding, giving the patient water as oral contrast, turning the patient prone for the second acquisition in a virtual colonoscopy Protocol),

  • instructions to the patient during the imaging procedure (e.g., asking the patient to hold their breath, asking the patient to hyperventilate prior to breath hold)

  • instructions to the technologist during the imaging procedure (e.g., obtain the spiral acquisition during a single breath hold, take additional images if some condition is true).

The instruction may also include timing or triggering details, for example:

  • Start the Portal Venous phase Acquisition Protocol Element when an ROI placed over the liver detects a contrast bolus at 50 HU above baseline

  • Start the Delay phase Acquisition Protocol Element three minutes after start of contrast injection

  • Start the AP Localizer Acquisition Protocol Element eight minutes after start of contrast injection and repeat the AP Localizer Acquisition Protocol Element at one minute intervals until adequate ureter opacification is observed, then proceed to the abdomen Acquisition Protocol Element

Instructions related to the initial positioning of the patient are included in the Patient Positioning Module. This Module may describe subsequent changes in position between steps of the protocol.

Equipment preparation instructions would typically be limited to phantom imaging or other calibration procedures related to the individual patient scan. Phantom Imaging and/or Calibration to be performed as general QA/qualification (i.e., not associated with the individual patient scan) shall not be described in this Module.

Activities that are associated with the protocol but which are not typically performed in the scanning room, such as the need to obtain creatinine values within 7 days before performing the Protocol, or to premedicate the patient with Benadryl 1 hour before performing the Protocol, are described in the Protocol Planning Information (0018,990F) rather than in this Module.