Department of Neurology

Posse MR Lab

Selected peer-reviewed publications: [most recent]
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[1] V.G. Kiselev, S. Posse, “Theory of Susceptibility induced NMR Signal Dephasing in a Cerebrovascular Network”, Physical Review Letters, 81:5696-5699, 1998.

[2] S. Dager, M.E. Layton, W. Strauss, T.L. Richards, A. Heide, A. Artru, S. Posse, “Human Brain Metabolic Response to Caffeine and the Effects of Tolerance”, American Journal of Psychiatry, 156(2):229-237, 1999.

[3] M. Weckesser, S. Posse, U. Olthoff, L. Kemna, S. Dager, H.-W. Müller Gärtner, “Functional Imaging of the visual Cortex with BOLD-Contrast fMRI: Hyperventilation decreases the signal response”, Magnetic Resonance in Medicine, 41(1): 213-216, 1999.

[4] V. Kiselev, S. Posse, “Analytical Model of Susceptibility induced MR Signal Dephasing: Effect of Diffusion in a Microvascular Network”, Magnetic Resonance in Medicine, 41 (3): 499-509, 1999.

[5] S. Posse, S. Wiese, D. Gembris, K. Mathiak, C. Kessler, M.-L. Grosse-Ruyken, B. Elghawaghi, T. Richards, S. R. Dager, V. G. Kiselev, “Enhancement of BOLD-Contrast Sensitivity by Single-Shot Multi-Echo Functional MR Imaging”, Magnetic Resonance in Medicine, 42 (1): 87-97, 1999.

[6] D. Gembris, J.G. Taylor, S. Schor, W. Frings, D. Suter, S. Posse, “Functional MR Imaging in Real-Time using a sliding-window correlation technique”, Magnetic Resonance in Medicine, 43: 259-268, 2000.

[7] F. Schneider, U. Weiss, J.B. Salloum, C. Kesler, S. Posse, “Gender Differences in Regional Cerebral Blood Flow during Sadness”, Human Brain Mapping, 9, 226-238, 2000.

[8] K. Mathiak, S. Posse, “Evaluation of Motion and Realignment for Functional Magnetic Resonance Imaging in Realtime”, Magnetic Resonance in Medicine, 45(1):167-171, 2001.

[9] S. Posse, F. Binkofski, F. Schneider, D. Gembris, S. Wiese, V. Kiselev, T.Graf, B. Elghawaghi, T. Eickermann, “A New Approach to Measure Single Event Related Brain Activity using Real-Time fMRI: Feasibility of sensory, motor, and higher cognitive tasks”, Human Brain Mapping, 12(1); 25-41, 2001.

[10] S. Posse, L.J. Kemna, S. Wiese, B. Elghahwagi, V. G.Kiselev, “Dependence of fMRI Contrast on graded Hypo- and Hypercapnia using Whole Brain T2*-Mapping”, Magnetic Resonance in Medicine, 46, 264-271, 2001.

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[11] L.J. Kemna, S. Posse, “Effect of Respiratory CO2 Changes on the Shape of the Hemodynamic Response in Functional MR Imaging”, NeuroImage, 14 (3), 642-649, 2001.

[12] L. J. Kemna, S. Posse, L. Tellmann, T. Schmitz, H. Herzog, “ Interdependence of Regional and Global Cerebral Blood Flow During Visual Stimulation: An O-15 Butanol Positron Emission Tomography Study”, J. Cerebr. Blood Flow Metab., 21, 664-670, 2001.

[13] Posse, S., Shen, Z., Kiselev, V.G., Kemna, L.J., “Single-Shot T2* Mapping with 3D Compensation of Local Susceptibility Gradients in Multiple Regions”, NeuroImage 2003 February, 18(2):390-400.

[14] Posse, S., Fitzgerald, D., Gao, K., Habel, U., Rosenberg, D., Moore, G.J., Schneider, F.,“Real-time Functional Magnetic Resonance Imaging of Single Trial Amygdala Activation during Self-Induced Sadness”, NeuroImage, 18, 760-768, 2003.

[15] Chu, A., Alger, J.R., Moore, G.J., Posse,S.,“Proton-Echo-Planar-Spectroscopic- Imaging with Highly Effective Outer Volume Suppression using Combined Presaturation and Spatially Selective Echo Dephasing: COMPRESSED-PEPSI”, Magnetic Resonance in Medicine, 49:817-821, 2003.

[16] Nitschke, M.F., Binkofski, F., Buccino, G., Posse, S., Erdmann, C., Kömpf, D., Seitz, R.J., Heide, W.,“Activation of cerebellar hemispheres in spatial memorization of saccadic eye movements - an fMRI study”, Human Brain Mapping, 2004 June, 22(2):155-64.

[17] Fitzgerald DA, Posse S, Moore GJ, Tancer ME, Nathan PJ, Phan KL.“Neural correlates of internally-generated disgust via autobiographical recall: A functional magnetic resonance imaging investigation”. Neurosci Lett. 2004 Nov 11;370(2-3):91-6.

[18] Martínez-Ramón M., Koltchinsky V., Verzi, S., Heileman, G., Posse, S.,“Optimal Aggregation of Classifiers and Boosted Maps in Multiclass Real-time fMRI Pattern Recognition”, Neuroimage, 2006 Jul 1;31(3):1129-41.

[19] Gasparovic, C., Song, T., Devier, D., Bockholt, J., Caprihan, A., Mullins, P., Posse, S., Jung, R., Morrison, L.“The Use of Tissue Water as a Concentration Reference for Proton Spectroscopic Imaging”. Magn. Reson. Med., 2006 Jun;55(6):1219-26.

[20] Mayer, A.R., Xu, J., Para-Blagoev, J., Posse, S.,“Reproducibility of Activation in Broca’s Area During Covert Generation of Single Words at High Field: A Single Trial FMRI Study at 4 Tesla”, Neuroimage, 2006 Aug 1;32(1):129-37.

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[21] Otazo, R., Mueller, B., Ugurbil, K., Wald, L.L., Posse, S. “Signal-to-Noise Ratio and Spectral Line Width Improvements between 1.5 and 7 Tesla in Proton-Echo-Planar-Spectroscopic-Imaging (PEPSI)”. Magn Reson Med. 2006;56(6):1200-1210.

[22] Lin, F.-H., Tsai, S.-Y., Otazo, R., Caprihan, A., Wald, L.L., Belliveau, J.W., Posse, S., “Sensitivity-encoded (SENSE) Proton-Echo-Planar- Spectroscopic-Imaging (PEPSI) in Human Brain”, Magn. Reson. Med., Mag. Reson. Med. (2007), Vol. 57 (2), 249-257.

[23] Tsai, S-Y., Posse., S., Lin, Y.-R., Ko C.-W., Otazo, R., Chung, H.-W., Lin F.-H., “Fast Mapping of T2 Relaxation Time of Cerebral Metabolites using Proton-Echo-Planar-Spectroscopic-Imaging (PEPSI)”, Magn. Reson. Med. (2007), Vol. 57 (5), 859-865.

[24] Posse, S., Otazo, R., Caprihan, A., Bustillo, J., Chen, H., Henry, P.-G., Marjanska, M., Gasparovic, C., Zuo, C., Magnotta, V., Mueller, B., Mullins, P., Renshaw, P., Ugurbil, K., Lim, K.O., Alger,J..R., “Proton Echo Planar Spectroscopic Imaging of J-Coupled Resonances in Human Brain at 3 and 4 Tesla”, Magn. Reson. Med. (2007), Vol 58, (2), 236 - 244.

[25] Otazo, R., Tsai, S-Y, Lin F-H, Posse, S.,“Highly Parallel Volumetric Echo-Planar Spectroscopic Imaging with 2D Acceleration”, Magn. Reson. Med. (2007), 58(6):1107-16.

[26] Dager SR, Oskin NM, Richards TL, Posse S.“ Research Applications of Magnetic Resonance Spectroscopy (MRS) to Investigate Psychiatric Disorders”. Topics in MRI 2008;19:81-96.

[27] Tsai, S-Y, Posse, S.,Otazo, R., Lin Y-R, Chung, H-W, Lin F-H, “Accelerated Proton-Echo-Planar-Spectroscopy-Imaging (PEPSI) using GRAPPA with a 32-channel phased-array coil”, Magn. Reson. Med. 2008 May;59(5):989-98.

[28] Posse, S., Otazo, R., Tsai S-Y, Lin F-H.,“Single-Shot MR Spectroscopic Imaging with Partial Parallel Imaging, Magnetic Resonance in Medicine”, 2009 March; 61 (3), 541-547.

[29] Otazo, R., Lin, F.-H., Wiggins, G., Jordan, R., Sodickson, D., Posse, S.,“Superresolution Parallel Magnetic Resonance Imaging”, Neuroimage, in press.

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Posse MR Lab