EUROPEAN JOURNAL OF
PHARMACEUTICAL AND MEDICAL RESEARCH

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Pharmaceutical, Medical & Biological Sciences

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

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 ISSN 2394-3211

Impact Factor: 7.065

 ICV - 79.57

Abstract

CURRENT ROLE OF DUAL-ENERGY COMPUTED TOMOGRAPHY IN PREDICTING THE CHEMICAL COMPOSITION OF THE URINARY STONES AND RADIATION CONCERNS.

Narendra Singh Rathore, Shaveta Yadav, Ning Tu and Guangyao Wu*

ABSTRACT

Dual-energy CT (DECT) has shown excellent outcomes in differentiating the chemical composition of the urinary stones with a great accuracy. Several in-vivo and ex-vivo studies have validated the results. Simultaneous dual-source scans with two x-ray tubes of 80 and 140 kV[45, 14], a single-source scan with dual-layer detector[37, 38] and Rapid switching technique are the commonly used data acquisition techniques, with each having some merits and demerits over each other. The ability of dual-energy CT to differentiate two materials depends on the characteristic CT number ratio of each material. The difference between the CT number ratios for any two materials is determined by the separation between the low and high energy spectra and the effective atomic numbers of the materials.[15] Both material-specific and diagnostic images are created from a single acquisition. The installation of a tin filtration equipment on the newer generation dual energy scanners have resulted in better spectral separation and has made it easy to further differentiate the non-uric acid stone types. Radiation exposure is a prime concern regarding the use of DECT. The amount of radiation exposure to the patients depends on the scanning technique used as well as the part of body to be covered. The implementation of radiation protection strategies during dual energy scanning, such as automated tube current modulation, iterative reconstruction techniques, and designing of improved detector can decrease electronic noise and thus may help to further reduce the radiation dose of DECT.

Keywords: Urolithiasis; Dual-energy CT; DECT; Radiation.


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Google Scholar Indian Science Publications InfoBase Index (In Process) SOCOLAR, China Research Bible, Fuchu, Tokyo. JAPAN International Society for Research activity (ISRA) Scientific Indexing Services (SIS) Polish Scholarly Bibliography Global Impact Factor (GIF) (Under Process) Universal Impact Factor International Scientific Indexing (ISI), UAE Index Copernicus CAS (A Division of American Chemical Society) USA (Under Process) Directory of Open Access Journal (DOAJ, Sweden, in process) UDLedge Science Citation Index CiteFactor Directory Of Research Journal Indexing (DRJI) Indian citation Index (ICI) Journal Index (JI, Under Process) Directory of abstract indexing for Journals (DAIJ) Open Access Journals (Under Process) Impact Factor Services For International Journals (IFSIJ) Cosmos Impact Factor Jour Informatics (Under Process) Eurasian Scientific Journal Index (ESJI) International Innovative Journal Impact Factor (IIJIF) Science Library Index, Dubai, United Arab Emirates Pubmed Database [NLM ID: 101669306] (Under Process) IP Indexing (IP Value 2.40) Web of Science Group (Under Process) Directory of Research Journals Indexing Scholar Article Journal Index (SAJI) International Scientific Indexing ( ISI ) Scope Database Academia