Published October 2003 | Version v1
Miscellaneous Metadata-only

Liquid scintillation counter calibration necessity in the case of 14c-urea breath test measurement

Creators

  • 1. The Institute of Nuclear Sciences - Vinca, Laboratory for radioisotopes, P.O.box 522, Belgrade (Serbia)
  • 2. Medical Faculty, University of Belgrade Belgrade, (Serbia)
  • 3. Orlic, M.

Description

The existing procedure for determination of helicobacter pylori bacteria infection on the basis of activity measurement of the exhaled 14C-carbon dioxide formed from 14C-urea in stomach has well-established interpretation criteria. After 37 kBq of capsulated 14C -urea administration the patient has to breath out 1 mmol of CO2 in counting vial. The 14C activity of counting vial is than measured in liquid scintillator counter. Real interpretation criteria of helicobacter pylori infection are correlated with 14C activity and expressed in DPM units. Interpretation criteria in CPM units, which are usually performed, can produce some errors, especially at range borders. These errors as well as the calibration procedure are the subject of this paper. (author)

Part of:
Calculation of gamma-ray dose rate from storage cask with radioactive sludge

Additional details

Identifiers

URL
http://www.vin.bg.ac.yu/YUNS/YUNSC2K2/Contents.htm;

Publishing Information

Publisher
Institute of Nuclear Sciences VINCA
Imprint Place
Belgrade (Yugoslavia)
ISBN
86-7306-062-1
Imprint Title
Proceedings of the Yugoslav Nuclear Society Conference (YUNSC-2002)
Imprint Pagination
706 p.
Journal Page Range
p. 575-576

Conference

Title
4. International Yugoslav Nuclear Society Conference
Acronym
YUNSC-2002
Dates
30 Sep - 4 Oct 2002
Place
Belgrade (Yugoslavia)

INIS

Country of Publication
Yugoslavia
Country of Input or Organization
Serbia
INIS RN
41123095
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S62: RADIOLOGY AND NUCLEAR MEDICINE;
Resource subtype / Literary indicator
Conference, Numerical Data, Non-conventional Literature
Descriptors DEI
BACKGROUND RADIATION; BACTERIA; BETA PARTICLES; BREATH; CALIBRATION; CAPSULES; CARBON 14; CARBON DIOXIDE; CHEMILUMINESCENCE; CLINICAL TRIALS; CORRECTIONS; COUNTING TECHNIQUES; DIAGNOSIS; EFFICIENCY; EVALUATED DATA; LIQUID SCINTILLATION DETECTORS; PATIENTS; RADIATION SOURCES; RADIOACTIVITY; SAMPLE PREPARATION; SENSITIVITY; STOMACH; UREA
Descriptors DEC
AMIDES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BODY; CARBON COMPOUNDS; CARBON ISOTOPES; CARBON OXIDES; CARBONIC ACID DERIVATIVES; CHALCOGENIDES; CHARGED PARTICLES; CONTAINERS; DATA; DIGESTIVE SYSTEM; EMISSION; EVEN-EVEN NUCLEI; GASTROINTESTINAL TRACT; INFORMATION; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; LUMINESCENCE; MEASURING INSTRUMENTS; MICROORGANISMS; NUCLEI; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANS; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; SCINTILLATION COUNTERS; TESTING; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
2 refs.; This record replaces 36021560