References
Some publications on stroke imaging by ASIST-Japan researchers are listed.
Diagnostic imaging in acute cerebrovascular stroke | |
A thorough review by the ASIST-Japan chief investigator on the current status and problems of diagnostic imaging of acute cerebrovascular strokes. | |
Sasaki M. Clinical MR imaging for acute ischemic stroke: current concepts. Jpn J Magn Reson Med 2004;24(4):130-6 [In Japanese. English abstract available] | |
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Perfusion imaging | |
Dependence of perfusion map on differnet analysis softwares and algorithms. | |
Kudo K, Sasaki M, Yamada K, et al: Differences in CT Perfusion Maps Generated by Different Commercial Software: Quantitative Analysis by Using Identical Source Data of Acute Stroke Patients.
Radiology 2010;254:200-209 |
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Tracer delay effect evaluated with digital phantom. | |
Kudo K, Sasaki M, Ogasawara K, et al: Difference in tracer delay-induced effect among deconvolution algorithms in CT perfusion analysis: quantitative evaluation with digital phantoms.
Radiology 2009 (Epub) |
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bSVD algorithm is tracer delay-insensitive and reliable. | |
Sasaki M, Kudo K, Ogasawara K, Fujiwara S. Tracer Delay-Insensitive Algorithm Can Improve Reliability of CT Perfusion Imaging for Cerebrovascular Steno-Occlusive Disease: Comparison with Quantitative Single-Photon Emission CT. AJNR 2008;30:188-93 | |
CBF with CT perfusion imaging is considerably accurate in comparison with PET if vascular pixels are excluded. | |
Kudo K, Terae S, Katoh C, et al. Quantitative cerebral blood flow measurement with dynamic perfusion CT using the vascular-pixel elimination method: comparison with H2(15)O positron emission tomography. AJNR Am J Neuroradiol 2003;24(3):419-26 | |
MR perfusion imaging is affected by local iron susceptibility. | |
Yamada K, Gonzalez RG, OStergaard L, et al.Iron-induced susceptibility effect at the globus pallidus causes underestimation of flow and volume on dynamic susceptibility contrast-enhanced MR perfusion images. Am J Neuroradiol. 2002;23:1022-9 | |
MR perfusion imaging is dependent on the analysis algorithm and underlying carotid pathology. | |
Yamada K, Wu O, Gonzalez RG, Bakker D, et al. MR perfusion-weighted imaging of acute cerebral infarction: effect of the calculation methods and underlying vasculopathy. Stroke 2002; 33: 87-94 | |
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Diffusion-weighted imaging (DWI) | |
Difference in display methods of DWI affects the diagnostic performance of acute stroke. | |
Hirai T, Sasaki M, Maeda M, et al: Diffusion-weighted imaging in ischemic stroke: effect of display method on observers' diagnostic performance. Acad Radiol 2009;16:305-312 | |
ADC value is substantially dependent on scanners. | |
Sasaki M, Yamada K, Watanabe Y, Matsui M, Ida M, Fujiwara S, Shibata E: Variability in Absolute Apparent Diffusion Coefficient Values across DifferentPlatforms May Be Substantial: A Multivendor, Multi-institutional Comparison Study . Radiology 2008; 249: 624-630 | |
A proposal of novel method of standardizaion of DWI display condition. | |
Sasaki M, Ida M, Yamada K, Watanabe Y, Matsui M. Standardizing Display Conditions of Diffusion-weighted Images Using Concurrent b0 Images: A Multi-vendor Multi-institutional Study. Magn Reson Med Sci 2007; 6: 133-137 | |
Thin-section DWI provides better lesion conspicuity in stroke diagnosis. | |
Nakamura H, Yamada K, Kizu O, et al. Effect of thin-section diffusion-weighted MR imaging on stroke diagnosis. Am J Neuroradiol. 2005; 26: 560-565. | |
DWI is little affected by Gd administration. | |
Yamada K, Kubota H, Kizu O, et al. Effect of intravenous gadolinium-DTPA on diffusion-weighted images: evaluation of normal brain and infarcts. Stroke 2002; 33: 1799-1802 | |
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Neurotractography | |
Corticospinal involvement within the infarcts is related to stroke severity and functional recovery. | |
Konishi J, Yamada K, Kizu O, et al. MR tractography for the evaluation of functional recovery from lenticulostriate infarcts. Neurology. 2005; 64: 108-113. | |
Tractography improves the understanding of symptom progression in cerebral stroke. | |
Yamada K, Ito H, Nakamura H, et al. Stroke patients' evolving symptoms assessed by tractography. J Magn Reson Imaging 2004; 20: 923-929. | |
Neurotractography is a clinically feasible technique in cerebral stroke. | |
Yamada K, Mori S, Nakamura H, et al. Fiber-tracking method reveals sensorimotor pathway involvement in stroke patients. Stroke 2003; 34: E159-162. |