JPS63197468A - Radiation treatment planning apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a radiation therapy planning device.

[Traditional opposition]

Conventionally, this radiation therapy planning device performs dose distribution extraction, then selects the equal 1!1lffl value using software, performs isodose distribution extraction, and uses this extracted data to transfer the data to the CRT via the image memory. It was displayed above.

[Problem that the invention seeks to solve]

In the conventional method described above, after calculating the suspension distribution for the coordinates of several thousand points, isodose values are extracted from among the several thousand points.
All the iso-dose distribution display is done by software, so after performing line 1 ■ calculation, etc. 1! #
There is a drawback that it takes time to display the 1ffi distribution curve, and since all control is performed by software, there is also a drawback that the memory occupation rate of the software becomes large.

[Means for solving problems]

The radiation therapy meter j1j''A position of the present invention inputs the data of the line m distribution measurement performed by the CPU when making the treatment plan,
Equal M is calculated from the reception memory held and the line M distribution calculation data held by the reception memory.
A control circuit that sequentially extracts and outputs the data of the lowest value, and an arithmetic circuit that inputs the output of the control circuit and converts the input data into the data format of the data displayed on the CRT and held in the image memory. , an isodose extracting circuit configured of a transmission memory that inputs and holds data converted by an arithmetic circuit, and outputs the data to an image memory to display an isodose distribution curve on a CRT.

(Function) Therefore, the work for displaying the 1B dose distribution curve calculated by the CPU is not dependent on the software on the CPU side, but is taken over by the 11ffi extraction circuit, so high-speed processing is possible. The memory area occupied by the work is freed.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the main parts of an embodiment of the radiation treatment planning device of the present invention.

The isodose extraction circuit 8 includes a reception memory 2, a control circuit 3, and a
It consists of a circuit 4 and a transmission memory 5.

The reception memory 2 inputs and holds the data of the dose distribution t1 calculation performed by the CPU 1 for treatment planning. The control circuit 3 sequentially extracts the equal dose data from the memory held in the reception memory 2. The isodose distribution curve can be calculated by using the extracted isodose data, but in order to display it on the CRT 7, it is necessary to convert the data into a data format for the CRT 7. converts the isodose data from the control circuit 3 into data in a data format for the CRT 7. This converted data is input into the transmission memory 5, transferred to the image media 6, and displayed on the CRT 7 as an isodose distribution curve.

〔Effect of the invention〕

As explained above, the present invention extracts isodose distribution curves using a hardware isodose extraction circuit.
This has the effect of increasing the extraction speed, and also reduces the memory occupancy of the software for isodose distribution curve extraction, making it possible to add other functions.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main parts of an embodiment of the radiation treatment planning device of the present invention. DESCRIPTION OF SYMBOLS 1... CPU, 2... Memory for reception, 3... Control circuit, 4... Arithmetic circuit, 5... Transmission memory, 6... Image memory, 7... CRT. 8...Isodose extraction circuit. Figure 1

Claims (1)

[Claims] A radiation treatment planning device includes a reception memory that inputs and holds data for dose distribution calculations performed by the CPU when a treatment plan is created; A control circuit that sequentially extracts isodose value data from the data and outputs it; and a control circuit that inputs the output of the control circuit and converts the input data into the data format of the data displayed on the CRT and held in the image memory. and a transmission memory that inputs and holds the data converted by the arithmetic circuit and outputs the data to an image memory to display the isodose distribution curve on a CRT. A radiation treatment planning device characterized by having a circuit.