Meeting Banner
Abstract #0451

A Fingerprinting Approach to Compute Blood Volume, Vessel Diameter and Blood Oxygenation Maps in the Human Brain

Thomas Christen1, Nicolas Pannetier2, 3, Wendy W. Ni1, Deqiang Qiu1, Norbert Schuff2, 3, Michael E. Moseley1, Greg Zaharchuk1

1Radiology, Stanford University, Stanford, CA, United States; 2Radiology, University of California San Francisco, San Francisco, CA, United States; 3Center for Imaging of Neurodegenerative diseases, Veterans Affairs Medical Centre, San Francisco, CA, United States

In this work, we acquired the MR signal time evolution (FID and spin echo) pre and post injection of an intravascular contrast agent in volunteers. We then compared the ratio of the signals to a dictionary of curves obtained using advanced numerical simulations. We show that it is possible with this approach to extract quantitative information about the microvascular network.

Keywords

advanced affairs agent allows analytical analyze analyzing approaches approved blood bold brain cancer channel characteristics choice christen coil combines committee complex computation compute consistent contains contrast curve curves cylinders deterministic dictionary diffusion distribution dose easily echoes efficiency encouraging equivalent error evolution evolutions experiment extract fast field fingerprint fingerprinting formation fraction free full fully geometry good gradient head health highly histological homogeneous human important imported improvements in vivo inadequate included incorporation indicate indicates individual influence inhomogeneities injection inputs inside institute iron least local maps materials mathematical medical minimization model network numerical orientation orthogonal oxygen oxygenation parametric pharmaceuticals plots post preferential presence process processes properly protocol quantitative radiology radius realistic realized recent registration report reports resolution sake sampling saturation scanned scanner several simplicity simulated simulation simulations sinus slice slices solution spoiled square straight stroke structural studies suggests supported susceptibility systems tissue tool tried unique various vascular vessel vessels veterans volume volunteer volunteers water white whole