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Hardware-based conformance event determination method and device

A determination method and event technology, applied in the medical field, can solve the problems of long processing time, low efficiency of compliance event determination, and high pressure on communication links, etc., to shorten the time and improve the efficiency of compliance event determination.

Active Publication Date: 2013-10-02
沈阳智核医疗科技有限公司
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Problems solved by technology

[0006] However, since the above-mentioned matching event determination method is usually completed by software, when the event information that needs to be uploaded to the processing software is large, the pressure on the communication link between the detection device and the computer software will be relatively high, and the cost of realizing the communication link will also be high. bigger
In addition, the above-mentioned matching event judgment method needs to complete the sorting of a huge amount of event occurrence time information and the processing of time and space matching judgments in a serial manner in a short period of time. The pressure on the processing software is very high, and the processing time is relatively long. At the same time, it leads to low efficiency in judging coincident events

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  • Hardware-based conformance event determination method and device

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Embodiment 1

[0076] At present, the implementation form of coincident event determination in commercial PET is limited by the processing capacity of computer software, and it is still more inclined to hardware processing. However, under the premise of hardware processing, due to the huge amount of data processing of coincident events, if the implementation method is not selected properly, it will be difficult. Resulting in a sharp increase in hardware costs.

[0077] The design principle of this embodiment is mainly to adopt a data processing method based on time stamps, provide a digital processing of consistent data, and obtain information on annihilation events within a preset time period in advance, so that a huge amount of annihilation event data can be completed by hardware. In the event judgment process, the hardware conforms to the processing method combining real-time and non-real-time data processing, which greatly reduces the data communication pressure between the detection devi...

Embodiment 2

[0091] In this embodiment, the event information of the N data blocks is respectively carried out in the pre-established parallel processing channel in the process of event determination as follows, refer to Figure 4 , Figure 4 The flow chart of the method for judging a coincidence event provided in this embodiment may specifically include:

[0092] The process of judging the event conforming to the event information of the data block in any processing channel:

[0093] Step 401: Sort the pending events of the data blocks in the processing channel according to the occurrence time, and obtain the sorted data blocks.

[0094] In this embodiment, firstly, the occurrence time of the pending events of the data blocks is obtained, secondly, the pending events are sorted according to the occurrence time, and finally, the sorted data blocks are obtained.

[0095] Since the event information of the pending events of the data blocks in the processing channel is obtained by multiple ...

Embodiment 3

[0117] refer to Figure 5 , Figure 5 The structural diagram of the hardware-based coincidence event determination device provided in this embodiment, the device may include:

[0118] The first acquiring module 501 is configured to acquire event information of an event to be processed, the event information including occurrence time, occurrence location and energy;

[0119] A dividing module 502, configured to divide the event information of the event to be processed into N data blocks according to the occurrence time, where N is a natural number;

[0120] The first judging module 503 is configured to judge the event information of the N data blocks respectively in a pre-established parallel processing channel.

[0121] The first determination module 503 may include:

[0122] A triggering submodule, configured to trigger the sorting submodule for event information of data blocks in any processing channel;

[0123] The sorting sub-module is used to sort the pending events o...

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Abstract

The embodiment of the invention discloses a hardware-based conformance event determination method and device. The method comprises the following steps of obtaining event information of an event to be processed, the event information comprising occurrence time, occurrence position and energy; according to the occurrence time, dividing the event information of the event to be processed into N data blocks, wherein N is a natural number; and respectively carrying out conformance event determination on the event information of the N data blocks in pre-established parallel processing channels. According to the method and the device provided by the invention, the original serial processing mechanism is adjusted to a parallel processing mechanism, and the conformance event determination is carried out by utilizing the parallel processing channels, so that the defects of serial processing in the prior art are overcome so as to ensure that the event information in each period of time can be processed, and the duration of conformance event determination is shortened, and thus the data on the entire time axis can not be stuck or lost. Compared with the prior art, the hardware-based conformance event determination method improves the determination efficiency of conformance events.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a hardware-based coincidence event determination method and device. Background technique [0002] Positron Emission Tomograph (PET) system is an advanced molecular imaging diagnostic equipment in today's medical field. Because it uses radionuclides as tracers, it is also called nuclear medicine equipment. The PET system is currently widely used in the detection of early tumor lesions, the evaluation of the recovery effect of radiotherapy and chemotherapy, and the examination of diseases in the heart, brain and nerve systems, and has irreplaceable advantages in some diagnostic fields. [0003] Select a FDG (Fluoro Deoxy Glucose, deoxyglucose) label containing a positron nuclide as a tracer and inject it into the subject. After entering the human body, the tracer will diffuse into various tissues along with the blood and participate in Metabolic activity of the human body. Durin...

Claims

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Application Information

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IPC IPC(8): G06F9/38
Inventor 杨龙高鹏尹柱霞
Owner 沈阳智核医疗科技有限公司
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