Changes in Quantitative SPECT Thallium-201 Results Associated with the Use of Energy-Weighted Acquisition

The effect of utilizing energy-weighted acquisition on quantitative analysis of SPECT thallium-201 images was evaluated by simultaneously acquiring energy-weighted and windowed projection images in ten patients. The paired image sets were processed identically and evaluated by probability analysis o...

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Bibliographic Details
Published inThe Journal of nuclear medicine (1978) Vol. 32; no. 5; pp. 805 - 807
Main Authors Floyd, John L, Mann, Rodney B, Shaw, Arlene
Format Journal Article
LanguageEnglish
Published Reston, VA Soc Nuclear Med 01.05.1991
Society of Nuclear Medicine
Subjects
550601 - Medicine- Unsealed Radionuclides in Diagnostics
ACCURACY
BETA DECAY RADIOISOTOPES
Biological and medical sciences
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
CONTROL
Coronary Disease - diagnostic imaging
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
EMISSION COMPUTED TOMOGRAPHY
EXERCISE
Exercise Test
Female
HEART
HEAVY NUCLEI
Humans
Image Processing, Computer-Assisted
Investigative techniques, diagnostic techniques (general aspects)
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
Male
Medical sciences
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
QUALITY CONTROL
RADIOISOTOPES
RADIOLOGY AND NUCLEAR MEDICINE
Radionuclide investigations
SECONDS LIVING RADIOISOTOPES
SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY
THALLIUM 201
THALLIUM ISOTOPES
Thallium Radioisotopes
TOMOGRAPHY
Tomography, Emission-Computed, Single-Photon - methods
Radionuclide study
Human
Thallium
Heart disease
Cardiovascular disease
Exploration
Technique
Positron emission tomography
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Summary:The effect of utilizing energy-weighted acquisition on quantitative analysis of SPECT thallium-201 images was evaluated by simultaneously acquiring energy-weighted and windowed projection images in ten patients. The paired image sets were processed identically and evaluated by probability analysis of defect magnitude as indicated by a commercially available software analysis package. It was predicted that defect magnitude would increase as a result of improved image contrast. This was confirmed experimentally. One should be cautious in relying on strict quantitative criteria in cardiac studies with thallium-201, especially when major changes in the imaging system or technique are introduced.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0161-5505
1535-5667