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KMID : 1151820170110070637
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Journal of the Korean Society of Radiology
2017 Volume.11 No. 7 p.637 ~ p.645
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A Study on Selection of Optimal Imaging Diagnostic Device for Cerebral Angiography: Focusing on MRA, CTA, and DSA Imaging Diagnosis Devices
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Byun Jung-Su
Goo Eun-Hoe
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Abstract
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The objective of this study was to find the optimum test device for the cerebral blood vessels by comparing and analyzing the SNR and CNR methods for images of three devices (i.e., MRA, CTA, and DSA). The study targeted 90 patients who underwent cerebral angiography from November 2016 to May 2017. The measuring parts were measured by using Rt MCA, Lt MCA, and ACA Image J. The results of quantitative analysis showed that the mean SNR of MRA, the CNR of MRA, the signal strength of MRA, the mean SNR of CTA, the CNR of CTA, the signal strength of CTA, the SNR of DSA, the CNR of DSA, and the signal strength of DSA were evaluated as 254.87, 178.13, 326.81, 74.75, 62.2, 356.66, 26.85, 25.89, and 4400.69, respectively (p<0.05). As a result, both SNR and CNR methods measured it in the order of MRA>CTA>DSA. Statistical significance was determined by using ANOVA analysis at p<0.05 and Bonferroni method was used as a post-hoc analysis SPSS. In conclusion, the results of this study revealed that the optimum imaging devices were MRA, CTA, and DSA after evaluating randomly selected patients with cerebrovascular disease.
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KEYWORD
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Signal to Noise Ratio, Contrast to Noise Ratio, Digital Subtracted Angiography, Magnetic Resonance Angiography, Computed Tomography Angiography
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