IVUS Pullback Start Frame Number Attribute
| Tag | (0018,3103) |
|---|---|
| Type | Conditionally Required (1C) |
| Keyword | IVUSPullbackStartFrameNumber |
| Value Multiplicity | 1 |
| Value Representation | Integer String (IS) |
Frame number at which the motorized portion of the acquisition begins.
Required if IVUS Acquisition (0018,3100) value is MOTORIZED.
See Section C.8.27.5.1.
Section C.8.27.5.1
C.8.27.5.1 IVUS Acquisition
The Attribute IVUS Acquisition (0018,3100) denotes the method used to acquire the Intravascular Images.
MOTORIZED: The Intravascular imaging catheter is positioned in the blood vessel proximal or distal to the anatomical structures to be examined. The catheter is attached to a motorized mechanism capable of either pushing forward or pulling back the catheter through the vessel at a constant velocity, as specified by the IVUS Pullback Rate (0018,3101). The motorized acquisition takes place during the time between acquisition of the IVUS Pullback Start Frame Number (0018,3103), and acquisition of the IVUS Pullback Stop Frame Number (0018,3104).
MANUAL: The Intravascular imaging catheter is positioned in the blood vessel proximal or distal to the anatomical structures to be examined. The catheter is then manually pulled back or pushed forward through the vessel segment of interest.
SELECTIVE: The Intravascular imaging catheter is positioned in the blood vessel. The catheter is then manually pushed forward and/or pulled back to examine the anatomical structures in the vessel.
MEASURED: The Intravascular imaging catheter is positioned in the blood vessel near the anatomical structures to be examined. The catheter is then pulled back or pushed forward through the vessel segment of interest. The longitudinal movement between each acquired frame is measured and recorded. See Section C.8.27.6.2 for more information.