Tracking method based on positioning monitoring system

A monitoring system and ray detector technology, applied in the field of measurement, can solve problems such as the inability to realize accurate positioning of capsules, the inability to realize real-time tracking and positioning of capsules, difficulties in image processing and precise positioning, etc.

A monitoring system and ray detector technology, applied in the field of measurement, can solve problems such as the inability to realize accurate positioning of capsules, the inability to realize real-time tracking and positioning of capsules, difficulties in image processing and precise positioning, etc.

CN104814713AActive Publication Date: 2015-08-05SHANGHAI LEADERSOFT INFORMATION TECH CO LTD
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  • Tracking method based on positioning monitoring system
  • Tracking method based on positioning monitoring system
  • Tracking method based on positioning monitoring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 and figure 2 As shown, this embodiment includes: a capsule a located in the body, a data recorder b, a radiation detector device c disposed outside the body and surrounding the gastrointestinal tract, and a data processor d, wherein: the capsule a has three radioactive markers 1 , the three radioactive markers 1 emit positrons, and combine with the surrounding negative electrons to produce annihilation radiation, the positive and negative electrons disappear, and emit two gamma photons with opposite directions and equal energy. The ray detector device c measures two gamma Photons generate two timing pulses respectively, and store the two timing pulses and coincidence lines in the multimedia MMC card, and then transmit them to the data processor d through the USB interface, and the data processor d tracks the two gamma photons and performs coincidence events Screening, and calculating the gathering position of the intersection point of the coincident lin...

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Abstract

The invention relates a tracking method( / b) based on positioning monitoring system in the field of measuring technology (b), comprising: a capsule inside the body, a data recorder, a radioactive ray prober, and a data processor, wherein the capsule has three radioactive markers which emit positive electrons and have annihilation radiation with peripheral negative electrons. When positive and negative electrons disappear, two Gamma (r) photons of equal energy are emitted in opposite directions. As the radioactive prober detects the two Gamma (r) photons, the radioactive prober produces respectively two timing pulses, and then transmits the two timing pulses and coincidence circuits to the data processor after storing the two timing pulses and the coincidence circuits. The data processor conducts coincidence event selection between the two Gamma (r) photons by means of a tracking algorithm in accordance with coincidence event, calculates a focal aggregation position of true coincidence and lower coincidence circuits, and locates the position of the capsule inside the body. The tracking method of the invention locates can accurately the position of a capsule inside stomach and intestine based on radioactive markers.

Description

technical field [0001] The invention relates to a method in the technical field of measurement, in particular to a tracking method based on a positioning monitoring system. Background technique [0002] Gastrointestinal disorders such as gastroparesis, constipation, irritable bowel syndrome, and functional dyspepsia affect about a third of people. How to detect gastrointestinal diseases has become a research hotspot among scholars today. At present, the clinical detection methods of gastrointestinal diseases mainly include manometry, defecation contrast, scintigraphy and so on. Manometry is to insert a catheter equipped with a miniature pressure sensor into the human gastrointestinal tract from the anus or oral cavity to measure the pressure of the gastrointestinal tract. It causes great distress to the human body and increases the chances of intestinal perforation and cross-infection. Different doctors have different judgments on the results of defecation contrast, and t...

Claims

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Application Information

Patent Timeline
05 Aug 2015
Publication
CN104814713A
IPC
A61B1/00; A61B5/07
CPC
A61B1/00131; A61B1/00147; A61B1/041; A61B5/07; A61B5/073
Inventors
颜国正; 鲁丽