MPPS_EXPO_DOSE_SEQ

Description:

This table contains radiation exposure dose sequence data received from Modality Performed Procedure Step (MPPS) or Radiation Dose Structured Reporting (RDSR) messages. Each MPPS message contains radiation exposure information corresponding to one performed procedure step. Each performed procedure step may, however, consist of multiple slices depending on the sophistication of the modality. Each such slice of radiation exposure administered on the patient is recorded as a separate radiation exposure dose sequence in the MPPS message. Similarly one RDSR message may contain radiation exposure information from multiple irradiation events. Each row in this table will correspond to a slice of radiation exposure information from an MPPS message or an irradiation event from an RDSR.

Primary Key

Column Name	Ordinal Position
IMY_ID	1
LINE	2

Column Information

	Name	Type	Discontinued?
1	IMY_ID	NUMERIC	No
	The unique identifier for the modality data record.
2	LINE	INTEGER	No
	The line number for the information associated with this record. Multiple pieces of information can be associated with this record.
3	KVP	NUMERIC	No
	Peak kilo voltage output of the x-ray generator used during the current exposure dose sequence. It holds an average value in the case of fluoroscopy (continuous radiation mode).
4	XRAY_TUBE_CURRENT	NUMERIC	No
	The current in the x-ray tube measured in µA during the current radiation exposure dose sequence. This holds an average value in the case of fluoroscopy (continuous radiation mode).
5	EXPOSURE_TIME	NUMERIC	No
	Time of x-ray exposure or fluoroscopy in milliseconds for the current exposure dose sequence.
6	FILTER_TYPE	VARCHAR	No
	Type of filters inserted into the x-ray beam during the current exposure dose sequence.
7	SEQ_COMMENTS	VARCHAR	No
	User-defined comments on any special conditions related to radiation dose encountered during the episode described by the current exposure dose sequence.
8	RADIATION_MODE	VARCHAR	No
	Specifies x-ray radiation mode during the current exposure dose sequence.
9	SEQ_CTDIVOL	NUMERIC	No
	Computed Tomography Dose Index (CTDIvol) in mGy. It describes the average dose for this image during the current exposure dose sequence for the selected CT conditions of operation.
10	SEQ_DLP	NUMERIC	No
	Dose Length Product (DLP) for the current exposure dose sequence.
11	RDSR_TARGET_REGN_C_NAME	VARCHAR	No
	The anatomical region category ID for the target region of the DICOM instance record. May contain organization-specific values: Yes Category Entries: Other Abdomen Lung Pelvis Spine
12	RDSR_ACQUISTN_TYP_C_NAME	VARCHAR	No
	The acquisition type category ID for the DICOM instance record. May contain organization-specific values: Yes Category Entries: Sequenced Acquisition Spiral Acquisition Constant Angle Acquisition Stationary Acquisition Free Acquisition
13	RDSR_PROC_CONTEXT_C_NAME	VARCHAR	No
	The procedure context category ID for the DICOM instance record. May contain organization-specific values: Yes Category Entries: Diagnostic radiography with contrast media CT without contrast
14	RDSR_IRRADIATN_UID	VARCHAR	No
	The order instance of the irradiation event.
15	RDSR_SCANG_LENGTH	NUMERIC	No
	The scanning length.
16	RDSR_SINGLE_COLLIMATION_WIDTH	NUMERIC	No
	The single collimation width.
17	RDSR_TOTAL_COLLIMATION_WIDTH	NUMERIC	No
	The total collimation width.
18	RDSR_PITCH_FACTOR	NUMERIC	No
	The pitch factor.
19	RDSR_NUM_XRAY_SRC	INTEGER	No
	The number of x-ray sources.
20	RDSR_CTDIW_PHNTM_C_NAME	VARCHAR	No
	The CTDIW phantom type category ID for the DICOM instance record. May contain organization-specific values: Yes Category Entries: Phantom ACR Accreditation Phantom - CT ACR Accreditation Phantom - MR ACR Accreditation Phantom - Mammography ACR Accreditation Phantom – Stereotactic Breast Biopsy ACR Accreditation Phantom - ECT ACR Accreditation Phantom - PET ACR Accreditation Phantom – ECT/PET ACR Accreditation Phantom – PET Faceplate IEC Head Dosimetry Phantom IEC Body Dosimetry Phantom NEMA XR21-2000 Phantom
21	RDSR_MSR_METHOD_C_NAME	VARCHAR	No
	The total dose measurement method category ID for a particular irradiation event DICOM instance record. May contain organization-specific values: Yes Category Entries: DLP to E conversion via MC computation CTDIfreeair to E conversion via MC computation DLP to E conversion via measurement CTDIfreeair to E conversion via measurement
22	RDSR_XRAY_MOD_TYPE	VARCHAR	No
	The x-ray modulation type.
23	RDSR_EFF_DOSE	NUMERIC	No
	The effective dose for a particular irradiation event.