Phantom Study: Non uniformity Quantity of Technetium-99m in Different Segments of Myocardial SPECT Image

Mohannad Adel Sayah, Norlaili Ahmad Kabir and Mohammad Suhaimi Jaafar
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Mohannad Adel Sayah: Universiti Sains Malaysia, 11800 Penang, Malaysia
Norlaili Ahmad Kabir: Universiti Sains Malaysia, 11800 Penang, Malaysia
Mohammad Suhaimi Jaafar: Universiti Sains Malaysia, 11800 Penang, Malaysia

International Journal of Applied and Physical Sciences, 2017, vol. 3, issue 2, 37-41

Abstract: It is important to quantify the uniformity of pixel intensity in myocardial SPECT images at varied tomographic slices. Distribution of pixel densities in SPECT images mirrored the distribution of radionuclide tracer within target organs. Non-uniformity of pixel intensities in SPECT image may lead to incorrect diagnosis of myocardial infarction. Myocardial phantom positioning is one of the many reasons that affect pixel intensity distribution. In this research work, the fabricated Myocardial phantoms were used to mimic myocardial wall at end diastole and end systole. These phantoms were separately placed at four different positions on the imaging table. The purpose of this study was to quantitatively determine the pixel intensity distribution of the reconstructed myocardial SPECT images, and its relation to phantom positioning on the imaging table. Results show non-uniformity of pixel intensity of SPECT short axis image whether the myocardial phantom was end diastole or end systole. The non-uniformity was not significant, when reconstructed SPECT images of both stages were compared .This non-uniformity became significant (p

Keywords: Myocardial SPECT; Non-Uniformity; Positioning; Technetium-99m (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:apa:ijapss:2017:p:37-41

DOI: 10.20469/ijaps.3.50002-2.pdf

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