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KMID : 0861420110150020099
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Korean Journal of Nuclear Medicine Technology
2011 Volume.15 No. 2 p.99 ~ p.103
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A Study on the Variable Factors for Brain Perfusion SPECT(Diamox) Scan
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Lee Jin-Hyung
Kim Sang-Eon
Park Hyeon-Soo
Park Young-Jae
Lee In-Won
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Abstract
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Purpose: Head movement during brain perfusion SPECT (Diamox) scan is a one of important issues which
decreases image quality. It also causes repeated scans. This study was designed to evaluate variable factors
causing scan failures.
Materials and Methods:676 patients (359 men, 317 women, age average 54.5±18.4) for
brain perfusion SPECT (Diamox) scan from March, 2010 to Feb. 2011 were used as a subject. Age data and the
kind of disease(Moyamoya disease (MMD), None moyamoya disease (NMMD), Cerebral infarction (CI)), test
performance outcome (success,failure) were collected. The head movement factors(gender, disease, age, head
fixation device) were evaluated by chi-square test and logistic regression analysis
Results:The result showed that men had higher scan failure rate than women. Seniors in seventies(men 3.4%, women 1.5%) showed the most highest failure rate. Using head fixation device increased scan success rate up to 94.4~97.7%. The scan success rate is dependent upon gender, head fixation device by chi-square test( Χ 2 =3.8 (df=1, p<0.05), Χ 2 =10.4 (df=1, p<0.001)) Gender, disease(CI), head fixation device showed very effective result in logistic regression analysis.(Wald=3.3 (p<0.07), Wald=3.7 (p<0.05), Wald=9.3 (p<0.05)
Conclusion:It is demonstrated that gender, disease, using head fixation device is statistically very useful factors. Especially, head fixation device is a main
key minimizing repeated scan.
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KEYWORD
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Brain Perfusion SPECT (Diamox), Chi-square test, Logistic regression
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