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Title

Normal values of left ventricular functional indices in gated 99mTc-MIBI myocardial perfusion SPECT

Year: 1387
COI: JR_IRJNM-16-1_002
Language: EnglishView: 196
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Authors

Vahid Reza Dabbagh Kakhki - Department of Nuclear Medicine, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Seyed Rasoul Zakavi - Department of Nuclear Medicine, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Ramin Sadeghi - Department of Nuclear Medicine, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Mahdi Reza Emadzadeh - Department of Cardiovascular, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.

Abstract:

  Introduction: Although left ventricular(LV) function parameters measured by gated myocardial perfusion SPECT (GSPECT) have been validated, experimental data have revealed that the calculated the LV function parameters using GSPECT are affected by patient populations as well as particular acquisition and processing conditions. We tried to determine the normal values of GSPECT in an Iranian population.  Methods:  We studied 3500 Iranian patients who underwent GSPECT in an outpatient setting. To develop normal limits of LV functional indices using GSPECT, 148 patients with a low (<5%) likelihood of coronary disease and normal tomograms were selected.  No one of 148 patients had known coronary artery disease, typical angina, history of hypertension, diabetes mellitus, and smoking, any abnormality in echocardiography or hyperlipidemia. They were not taking any medication known to affect LV function at least 2 days before the study.  End diastolic volume (EDV), end systolic volume (ESV) and LV ejection fraction (LVEF) were calculated in rest GSPECT using iterative reconstruction and QGS (quantitative gated SPECT) software. Results: Mean EDV, ESV and LVEF were 53.8±20.2, 14.3±10.8 and 75.0%±9.6% respectively. These data showed a Gaussian distribution, so mean±2SD would show the upper or lower limits of normal for LV functional parameters. There were the marked sex differences in mean LVVs and LVEF measurements. BMI index had not effect on the measurement of the LV functional parameters. We noticed that 85.4% of our subjects had ESV<25 ml while most of them were women (112/123, 91%). Conclusion: From a clinical viewpoint, each institute should use a standard protocol for the specific patient population and for the mode of SPECT acquisition and reconstruction. Normal thresholds using GSPECT, OSEM reconstruction and QGS algorithm in men and women were EDV> 130, ESV> 55 & LVEF<52% and EDV> 77, ESV> 26 and LVEF<62% respectively.

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Paper COI Code

This Paper COI Code is JR_IRJNM-16-1_002. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1008385/

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If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Dabbagh Kakhki, Vahid Reza and Zakavi, Seyed Rasoul and Sadeghi, Ramin and Emadzadeh, Mahdi Reza,1387,Normal values of left ventricular functional indices in gated 99mTc-MIBI myocardial perfusion SPECT,https://civilica.com/doc/1008385

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