DICOM PS3.3 2021b - Information Object Definitions

C.8.8.25.8 Scan Spot Maps (Current)
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##### C.8.8.25.8 Scan Spot Maps

The Scan Spot Position Map (300A,0394) and Scan Spot Meterset Weights (300A,0396) shall be used as follows.

The following specifies for each value of Modulated Scan Mode Type (300A,0309) the definition of the map which is included in the Control Point 1 having Cumulative Meterset Weight (300A,0134) = 20, followed by a Control Point 2 having Cumulative Meterset Weight(300A,0134) = 20.

If Modulated Scan Mode Type (300A,0309) is STATIONARY:

Position (X,Y) | (1.0, 2.0) | (6.0, 2.0) | (6.0, 3.0) | (2.0, 3.0) | (2.0, 5.0) | (7.0, 5.0)
--- | --- | --- | --- | --- | --- | ---
Meterset Weights | 2 | 6 | 1 | 5 | 3 | 3

Delivery Description:

- The beam is positioned at Scan Spot Position (1.0, 2.0).

- The beam is delivered with a Meterset Weight of 2.

- The beam is switched off and positioned at Scan Spot Position (6.0, 2.0).

- The beam is delivered with a Meterset Weight of 6.

- The beam is switched off and positioned at Scan Spot Position (6.0, 3.0).

- The beam is delivered with a Meterset Weight of 1.

- The beam is switched off and positioned at Scan Spot Position (2.0, 3.0).

- The beam is delivered with a Meterset Weight of 5.

- The beam is switched off and positioned at Scan Spot Position (2.0, 5.0).

- The beam is delivered with a Meterset Weight of 3.

- The beam is switched off and positioned at Scan Spot Position (7.0, 5.0).

- The beam is delivered with a Meterset Weight of 3.

If Modulated Scan Mode Type (300A,0309) is LEAPING:

Position (X,Y) | (1.0, 2.0) | (6.0, 2.0) | (6.0, 3.0) | (2.0, 3.0) | (7.0, 5.0) | (7.0, 5.0)
--- | --- | --- | --- | --- | --- | ---
Meterset Weights | 1 | 5 | 4 | 6 | 0 | 4

Delivery Description:

- The beam is positioned at Scan Spot Position (1.0, 2.0).

- The beam is delivered with a Meterset Weight of 1.

- The beam is moved and positioned at Scan Spot Position (6.0, 2.0).

- The beam is delivered until a Meterset Weight of 5 is reached (including the Meterset delivered when the beam position changes).

- The beam is moved and positioned at Scan Spot Position (6.0, 3.0).

- The beam is delivered until a Meterset Weight of 4 is reached (including the Meterset delivered when the beam position changes).

- The beam is moved and positioned at Scan Spot Position (2.0, 3.0).

- The beam is delivered until a Meterset Weight of 6 is reached (including the Meterset delivered when the beam position changes).

- The beam is switched off and positioned at Scan Spot Position (7.0, 5.0).

- The beam is delivered with a Meterset Weight of 4.

If Modulated Scan Mode Type (300A,0309) is LINEAR:

Position (X,Y) | (1.0, 2.0) | (6.0, 2.0) | (6.0, 3.0) | (2.0, 3.0) | (7.0, 5.0) | (7.0, 5.0)
--- | --- | --- | --- | --- | --- | ---
Meterset Weights | 0 | 6 | 4 | 6 | 0 | 4

Delivery Description:

- The beam is positioned at Scan Spot Position (1,.0 2.0).

- The beam is continuously delivered with a Meterset Weight of 6, while being moved from Scan Spot Position (1.0, 2.0) to Scan Spot Position (6.0, 2.0).

- The beam is continuously delivered with a Meterset Weight of 4, while being moved from Scan Spot Position (6.0, 2.0) to Scan Spot Position (6.0, 3.0).

- The beam is continuously delivered with a Meterset Weight of 6, while being moved from Scan Spot Position (6.0, 3.0) to Scan Spot Position (2.0, 3.0).

- The beam is switched off and positioned at Scan Spot Position (7.0, 5.0).

- The beam is delivered with Meterset Weight of 4.

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DICOM PS3.3 2021b - Information Object Definitions