Meeting Banner
Abstract #3522

Intra-Scan Reproducibility of White Matter Perfusion in Dementia Using Pseudo-Continuous Arterial Spin Labeling

Henri JMM Mutsaerts1, Dennis FR Heijtel1, Charles BLM Majoie1, Edo Richard2, Aart J. Nederveen1

1Radiology, Academic Medical Center, Amsterdam, North-Holland, Netherlands; 2Neurology, Academic Medical Center, Amsterdam, North-Holland, Netherlands

The present data of 34 patients with varying degrees of dementia suggest that total WM perfusion can be obtained from relatively short scantimes (2 min.) using p-CASL with background suppression. Rather than disregarding WM perfusion data because of too low SNR for voxel-wise analyses, this data encourages to analyze the whole WM perfusion as potential extra marker. This could be a clinically relevant marker as WM degradation is involved in, and may even be the onset of, many neurological disorders.

Keywords

academic achieved acquisition advanced aging although analyses analyze anatomical arterial assesses available background bland blood brain capture cerebral channel clinical clinically cognitive cohort coil columns conducted confidence continuous currently defined degradation degrees delay dementia disease disorders disregarding divided dotted duration dutch dynamics encourages excluded extra flow focus focuses fraction furthermore generally gradient gray head heterogeneous hypothesize impairment include index indicate interval intra investigators involved labeling larger limited long many marker mask masks matrix measured medical mild minutes model negative neurobiology neurological neurology noise north occur onset paired pairwise parker partial patient patients perfusion physiological plots post potential preceding previously processing proven pseudo pulse pulses quantification radiology rather registered relatively relevant reliable reliably repeatability repeated reported reproducibility resolution respectively robustness saturation scaled scanner scanning sense short shot slices software solid spin studies subject substantially subtracted suggest suppression thresholds timescales trust types variation varies vary volume weeks white whole windows wise women years