JPS6044635B2 - Scintigram data input method - Google Patents

Description

[Detailed description of the invention] The present invention relates to a scintigram data input method.

The scintigram data processing device inputs the radioisotope distribution data of the subject obtained from the scintillation camera, creates a radioisotope distribution map of the subject, displays it on a CRT, or prints it externally using an external printing mechanism. This is for printing.

This is how we obtain medical diagnostic data. Medical diagnosis uses electrocardiogram (ECG) data in addition to data from cinch cameras. Electrocardiogram data may be processed separately by a device other than the above-mentioned processing device, but in general, electrocardiogram data and radioisotope distribution data are closely related to each other, so they are processed simultaneously. Processing is required. In order to achieve this objective, the data processing apparatus is configured to input electrocardiogram data in addition to radioisotope distribution data and perform parallel processing. The problem here is how to import the above two data into the data processing device. A specific example of conventional input capture will be described below. Figure 1 shows conventional radioisotope distribution data (x
, y) and electrocardiogram data ECG.
One word of memory 1 is divided into two parts, and data is stored in each part. Area 1 of memory 1, ■, V
,... are radioisotope distribution data (Xll9
yll) 9X12, y12) 9゜゜゜(Xlm, ylm
)9(X219y21)9(X22,y22)9゜゜゜9(X2n9y2n)9(X319y31)9(X32
, y32)... are stored. Area 1, ■, V
, ... are stored with electrocardiogram data ECGI, ECG2, ... in the respective boundary areas ■, ■, .... Generally, the data acquisition time for each area of 1, ■, V, . . . has the same time duration. This is determined by the measurement time of the cinch camera. All 0s are set as the data in the left half of areas ■ and ■.
This all 0 is the radioisotope distribution data (x,
y) and electrocardiogram data ECG. By setting all 0s, when reading and processing the data in the memory 1, it becomes possible to identify and process the distribution data (X, y) and the electrocardiogram data ECG. One word of the memory 1 has, for example, a 16-bit configuration. Therefore, the number of all 0 bits is 8 bits. A drawback of such a conventional example is that the area for electrocardiogram data ECG is small.

In the case of 16 bits/1W in the above specific example, the electrocardiogram data ECG has an 8-bit configuration, that is, a resolution of 7=256. With this resolution, it is impossible to record detailed changes in the electrocardiogram waveform. Even if the number of bits in one word increases, the same result will be obtained as long as ECG data is stored in half a word.

Furthermore, in addition to electrocardiogram data (ECG), other necessary data such as heart waveforms and injection points also need to be processed in parallel, and compressing such data into half-word units poses a major problem in terms of data resolution. Become. An object of the present invention is to provide a scintigram data input method that can effectively capture other data as well as radioisotope distribution data.

The gist of the present invention is to import data other than radioisotope distribution data in word units.

Data other than this radioisotope includes electrocardiogram data (ECG), heart waveform, injection point,
There are heart apex pulse waveforms, etc. Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 2 is a diagram showing an embodiment of the present invention, and FIG. 3 is a data structure diagram based on the embodiment of the present invention.

In the figure, the input section includes an n-channel data input section in addition to the cinch camera SIC. The n-channel data input section includes an electrocardiogram acquisition section ECGI1, a cardiac waveform acquisition section CGWI1, an index execution section. It consists of an Indian import section 1PI1, a respiratory waveform import section, a pulse waveform import section, etc. (not shown). The control unit CONT generates various timing signals and switching signals.
It serves as a control section for arranging data as shown in FIG. The multiplexer MULTI sequentially switches and outputs the n-channel input sections under the control of the control section CONT. AD converter ADl, AD
2 performs AD conversion of the output of the cinch camera SIC and AD conversion of the output of the multiplexer MULTI. The start and end of this pigeon conversion is controlled by the control unit CONT. The data selector switch SW is connected to the control unit CON.
Under the control of T, the output of converters ADl, AD2 is switched to be outputted to the outside. The data register D-Reg is a register for temporarily storing data after AD conversion obtained by switching with the switch SW, and transferring it to the memory 1. Address counter A●COU
NT performs address counting under the control of the control unit CONT, and the address register A-Reg is the counter A-Reg.
This is a register that receives the output of COUNT and gives a set address to the memory I river. Next, the operation will be explained.

First, the cinch camera SC starts measuring and collects the distribution data (
X, y) are obtained sequentially. This distribution data (X, y) is AD converted by the converter ADl and temporarily stored in the register D-Reg via the switch SW. On the other hand, the counter A-COUNT counts the addresses of the memory 1), and these addresses are sequentially set in the register A-Reg. As a result, the distribution data (X, y) set in the register D-Reg is sequentially stored in area 1 of the memory 1 word by word according to the address set in the register A-Reg. When the period of importing a series of data from the cinch camera SC ends, the switch SW
is switched to the converter AD2 side. After switching this switch SW, first, all 0s (reset) are set in the register D-Reg. On the other hand, the counter A.COUNT is also set to 1, and the address set to 1 is set in the register A-Reg. Then this register A-Reg
The above register D-Reg is added to the memory address specified by
The value of all 0 is set and stored. As a result, the third
As shown in the figure, the contents of the first address of area ■ are all 0.
becomes. Next, the operation moves to input data input to the n-channel input section. This input data is taken in in the order of electrocardiogram data ECGl, heart waveform CGl, injection point positive, etc., resulting in a data structure in area 2 as shown in FIG. After storing data in area ■,
All 0s are set in the register D-Reg again, and all 0s are stored in the first address of area (2). The reason why all 0's are stored in the first address of this area (2) is to indicate the boundary between the n-channel input data and the input data of the cinch camera SC. Next, the cinch camera S in the next cycle
Data (X, y) of C is sequentially stored in area (2). Thereafter, data is stored in areas ■ and ■ in the same manner. The above process is performed similarly for the apical pulse diagram. According to the present embodiment described above, in addition to radioisotope distribution data, it is now possible to import electrocardiogram data, cardiac sound waveforms, etc., which are processed simultaneously, in word units, so that it is possible to improve diagnostic accuracy. It became like that.

In the above embodiment, the importance of the data in the n channels is that the electrocardiogram data is ranked first, followed by the heart waveform and the injection point.

Therefore, basically, only the electrocardiogram data may have a one-word structure, and the other data may have a half-word structure. Furthermore,
The internal configuration of the control section, which is the center of control, can be achieved by combining mono-multivibrators, flip-flops, gate groups, etc. Next, FIG. 4 shows the relationship between the various actual waveforms performed in the above processing and the movement of the heart.

In the figure, scintigram data is captured in synchronization with the diastole and systole of the heart. As is clear from the figure, the waveforms of the apical pulsatogram, phonocardiogram, and electrocardiogram change depending on the diastole and systole, respectively. These waveforms are sampled, subjected to pigeon conversion, and taken into the processing device of this embodiment for processing. According to the present invention, it has become possible to efficiently store data such as electrocardiograms, thereby achieving a significant improvement in diagnostic accuracy.

[Brief explanation of the drawing]

FIG. 1 is a diagram of a conventional data storage configuration, FIG. 2 is a diagram of an embodiment of the present invention, and FIG. 3 is a diagram showing an example of a data storage configuration of the present invention.
FIG. 4 is a diagram of various waveforms. 1...Memory, SC...Cinch camera, ECGI...Electrocardiogram import unit, IPI...
・Injection point import unit, ADl, AD
2...AD converter, SW...data changeover switch, D-Regh...data register, A-Reg...address register.

Claims (1)

[Claims] 1. Alternately capturing radioisotope distribution data of the subject from a cinch camera and other data, including at least electrocardiogram data, which is different from the above data and is used for diagnostic purposes regarding the subject, and storing them alternately in a memory. In addition, a scintigram data input method 2 in which data indicating the distinction between the two data is stored at the boundary address between the distribution data and other data, and the electrocardiogram data is stored in address units. 2. The scintigram data input method according to claim 1, wherein the data includes a heart waveform and injection points in addition to electrocardiogram data.