新型非純正子發射斷層系統-蒙地卡羅模擬研究

呂世紀

3.238.70.175，Hello！

Close
Search Quick Search Advanced Search Publication Search	Personal Service Member Login Searching History Use Bonus Card SYMSKAN
Browse Browse by University of Graduate Thesis Browse by Pinyin of Graduate Thesis Browse by Conference Proceedings Topic Browse by Conference Proceedings Publisher Browse by Pinyin of Conference Proceedings Browse by eBook Category Browse by eBook Topic Browse by eBook Publisher
Customer Services Authorize Airiti Recommend a Journal

Search Symbol (Half-width)	Description of Search Symbols
Space	"AND" indicates the intertwining of key terms used in a search
Double Quotation Marks ("") ( " " )	Double quotation marks indicate the beginning and end of a phrase, and the search will only include terms that appear in the same order of those within the quotations. Example: "image process" ： " image process "
?	Indicates a variable letter. Entering two ? will indicate two variable letters, and so on. Example: "Appl?", search results will yield apple, apply… e , appl y … ( (often used to English word searches) )
*	Indicates an unlimited number of variable letters to follow, from 1~n. Example: Enter "appl*", search results will yield apple, apples, apply, applied, application…(often used in English word searches) e , appl es , appl y , appl ied , appl ication … ( (often used to English word searches) )
AND、OR、NOT	Boolean logic combinations of key words is a skill used to expand or refine search parameters. (1) AND (1) AND: Refines search parameters (2) OR (2) OR: Expands search parameters (3) NOT: Excludes irrelevant parameters

DOI stands for Digital Object Identifier （ D igital O bject I dentifier ） ,
and is the unique identifier for objects on the internet. It can be used to create persistent link and to cite articles.

Using DOI as a persistent link

To create a persistent link, add「http://dx.doi.org/」「 http://dx.doi.org/ 」 before a DOI.
For instance, if the DOI of an article is 10.5297/ser.1201.002 , you can link persistently to the article by entering the following link in your browser: http://dx.doi.org/ 10.5297/ser.1201.002 。
The DOI link will always direct you to the most updated article page no matter how the publisher changes the document's position, avoiding errors when engaging in important research.

Cite a document with DOI

When citing references, you should also cite the DOI if the article has one. If your citation guideline does not include DOIs, you may cite the DOI link.

DOIs allow accurate citations, improve academic contents connections, and allow users to gain better experience across different platforms. Currently, there are more than 70 million DOIs registered for academic contents. If you want to understand more about DOI, please visit airiti DOI Registration （ doi.airiti.com ）。

Data Source

Health & Medical Care > Medical Sciences
College of Nuclear Science > Department of Biomedical Engineering and Environmental Sciences
Bio-Agriculture > Biological Science

Bibliography Management Tool

Related Links

Report an Issue

Search in Library

There is no full-text available at the moment. Airiti would like to request author's authorization. I would like to provide authorization.

新型非純正子發射斷層系統-蒙地卡羅模擬研究

A novel PET image system for non-pure positron emitters: A Monte Carlo Simulation study

呂世紀 , Masters　　Advisor：莊克士　　

繁體中文

非純正子； non-pure positron emitters ； NPET

Abstract │ Reference (29) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

Non-pure positron emitters (e.g. I-124，Br-76，Y-86) have advantages with longer half-lives which can provide prolong study and target specific properties. However, these isotopes also emit high energy gamma rays (called associated gamma) that can be detected and cause additional random coincidences with the annihilation photons. In this research, we propose a novel imaging system called non-pure positron emission tomography (NPET). The system is based on the idea that the source position can be determined through detection of the three photons (2 annihilation photons and 1 associated gamma) using a triple coincidence circuit. The system comprises of two parts. NPET comprises of mutual perpendicular PET and SPECT connected by a coincidence circuit. The collimator on the SPECT can be used to detect the direction of the associated gamma. As long as these three photons are detected in the same time, the source position is located on the intersection of the incoming direction of the associated gamma and the line of annihilated photons which can provide real time image. 
The simulation results demonstrated the feasibility of the novel PET imaging for non-pure positron emitters. The average system resolution for NPET is 3.6 mm and the sensitivity is about 69 cps/MBq. Although the scatter and random effect dominate the located source positions which degrade the image quality, NPET system is in initial stage so that it could be improved and developed variously in the future.

Reference ( 29 ) 〈TOP〉

Barker W C, Szajek L P, Green S L and Carson R E 2001 Improved quantification for Tc-94m PET imaging Nuclear Science, IEEE Transactions on 48 739-42
連結：
Beattie B J, Finn R D, Rowland D J and Pentlow K S 2003 Quantitative imaging of bromine-76 and yttrium-86 with PET: A method for the removal of spurious activity introduced by cascade gamma rays Med. Phys. 30 2410-23
連結：
Beenhouwer J D, Staelens S, Vandenberghe S, Verhaeghe J, Holen R V, Rault E and Lemahieu I 2009 Physics process level discrimination of detections for GATE: Assessment of contamination in SPECT and spurious activity in PET Med. Phys. 36 1053-60
連結：
Camakaris J, Danks D, Ackland L, Cartwright E, Borger P and Cotton R 1980 Altered copper metabolism in cultured cells from human Menkes’ syndrome and mottled mouse mutants Biochem Genet 18 117-31
連結：
David A S, Bruce R L, Mark F S, Coleman T, Tung C H and Gagnon D 2007 The Effect of Cascade and Coincident Gamma Rays on PET I-124 Imaging of Non-Uniform Activity Distributions IEEE Nuclear Science Symposium Conference Record 3583-5
連結：

Altmetrics

〈TOP〉

E-mail ：

When an article is available to download, a notice will be sent to your mailbox address.

E-mail ：