. 2018; 27(2): 0-0

The influential factors on the difference of LV systolic parameters measurement in myocardial perfusion gated SPECT with 16 frame and 8 frame acquisition models

Mojtaba Ansari1, Seyed Mohsen Qutbi2, Zahra Azizmohammadi1, Faraj Tabeie2, Eznollah Azargashb2, Hamid Javadi3, Esmail Jafari4, Maryam Barekat5, Majid Assadi4
1Department of Nuclear Medicine, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2Department of Nuclear Medicine, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3Golestan Research Center of Gastroenterology and Hepatology (GRCGH), Golestan University of Medical Sciences (GUOMS), Gorgan, Iran
4The Persian Gulf Nuclear Medicine Research Center, Bushehr University Of Medical Sciences, Bushehr, Iran
5Regenerative Medicine Department, Royan Institute, Tehran, Iran

INTRODUCTION: Evaluating the effect of heart cavity volume, presence and absence of perfusion defect, gender and type of study (stress and rest) on the difference of systolic parameters of myocardial perfusion scan in 16 and 8 framing gated SPECT imaging.
METHODS: Cardiac gated SPECT in both 16 and 8 framing simultaneously and both stress and rest phases at one-day protocol was performed for 50 patients. Data had been reconstructed by filter back projection (FBP) method and LV systolic parameters were calculated by using QGS software. The effect of some factors such as LV cavity volume, presence and absence of perfusion defect, gender and type of study on difference between 8 and 16 frames on difference of on data difference were evaluated.
RESULTS: Difference of EF, EDV and ESV in both stress and rest was statistically significant. Increased difference of EF, EDV and ESV in both framing was more in stress, rest and stress, respectively. Type of study had a significant effect on difference of systolic parameters and also, gender has a significant effect on difference of EF and ESV in rest between both framings.
DISCUSSION AND CONCLUSION: Totally, results of this study revealed that systolic data of both 16 and 8 frames were statistically significant and it seems that because of better efficiency of 16 frames, it cannot be replaced by 8 frames. Further well-designed studies are required to verify these findings.

Keywords: perfusion gated SPECT, 16 frames, 8 frames, systolic parameters


Mojtaba Ansari, Seyed Mohsen Qutbi, Zahra Azizmohammadi, Faraj Tabeie, Eznollah Azargashb, Hamid Javadi, Esmail Jafari, Maryam Barekat, Majid Assadi. The influential factors on the difference of LV systolic parameters measurement in myocardial perfusion gated SPECT with 16 frame and 8 frame acquisition models. . 2018; 27(2): 0-0

Corresponding Author: Majid Assadi, Iran


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