Helmer KG - Search Results

1

QIN DAWG Validation of Gradient Nonlinearity Bias Correction Workflow for Quantitative Diffusion-Weighted Imaging in Multicenter Trials.

Malyarenko DI, Wilmes LJ, Arlinghaus LR, Jacobs MA, Huang W, Helmer KG, Taouli B, Yankeelov TE, Newitt D, Chenevert TL. Malyarenko DI, et al. Among authors: helmer kg. Tomography. 2016 Dec;2(4):396-405. doi: 10.18383/j.tom.2016.00214. Tomography. 2016. PMID: 28105469 Free PMC article.

2

Demonstration of nonlinearity bias in the measurement of the apparent diffusion coefficient in multicenter trials.

Malyarenko DI, Newitt D, J Wilmes L, Tudorica A, Helmer KG, Arlinghaus LR, Jacobs MA, Jajamovich G, Taouli B, Yankeelov TE, Huang W, Chenevert TL. Malyarenko DI, et al. Among authors: helmer kg. Magn Reson Med. 2016 Mar;75(3):1312-23. doi: 10.1002/mrm.25754. Epub 2015 May 2. Magn Reson Med. 2016. PMID: 25940607 Free PMC article.

3

Characterization of Diffusion Metric Map Similarity in Data From a Clinical Data Repository Using Histogram Distances.

Warner GC, Helmer KG. Warner GC, et al. Among authors: helmer kg. Front Neurosci. 2018 Mar 8;12:133. doi: 10.3389/fnins.2018.00133. eCollection 2018. Front Neurosci. 2018. PMID: 29568257 Free PMC article.

4

MarkVCID cerebral small vessel consortium: II. Neuroimaging protocols.

Lu H, Kashani AH, Arfanakis K, Caprihan A, DeCarli C, Gold BT, Li Y, Maillard P, Satizabal CL, Stables L, Wang DJJ, Corriveau RA, Singh H, Smith EE, Fischl B, van der Kouwe A, Schwab K, Helmer KG, Greenberg SM; MarkVCID Consortium. Lu H, et al. Among authors: helmer kg. Alzheimers Dement. 2021 Apr;17(4):716-725. doi: 10.1002/alz.12216. Epub 2021 Jan 21. Alzheimers Dement. 2021. PMID: 33480157 Free PMC article.

5

Multi-site study of diffusion metric variability: effects of site, vendor, field strength, and echo time on regions-of-interest and histogram-bin analyses.

Helmer KG, Chou MC, Preciado RI, Gimi B, Rollins NK, Song A, Turner J, Mori S. Helmer KG, et al. Proc SPIE Int Soc Opt Eng. 2016 Feb 27;9788:97882U. doi: 10.1117/12.2217445. Epub 2016 Mar 29. Proc SPIE Int Soc Opt Eng. 2016. PMID: 27330240 Free PMC article.

6

Multi-site Study of Diffusion Metric Variability: Characterizing the Effects of Site, Vendor, Field Strength, and Echo Time using the Histogram Distance.

Helmer KG, Chou MC, Preciado RI, Gimi B, Rollins NK, Song A, Turner J, Mori S. Helmer KG, et al. Proc SPIE Int Soc Opt Eng. 2016 Feb 27;9788:97881G. doi: 10.1117/12.2217449. Epub 2016 Mar 29. Proc SPIE Int Soc Opt Eng. 2016. PMID: 27350723 Free PMC article.

7

Direct visualization of the perforant pathway in the human brain with ex vivo diffusion tensor imaging.

Augustinack JC, Helmer K, Huber KE, Kakunoori S, Zöllei L, Fischl B. Augustinack JC, et al. Front Hum Neurosci. 2010 May 28;4:42. doi: 10.3389/fnhum.2010.00042. eCollection 2010. Front Hum Neurosci. 2010. PMID: 20577631 Free PMC article.

8

MarkVCID cerebral small vessel consortium: I. Enrollment, clinical, fluid protocols.

Wilcock D, Jicha G, Blacker D, Albert MS, D'Orazio LM, Elahi FM, Fornage M, Hinman JD, Knoefel J, Kramer J, Kryscio RJ, Lamar M, Moghekar A, Prestopnik J, Ringman JM, Rosenberg G, Sagare A, Satizabal CL, Schneider J, Seshadri S, Sur S, Tracy RP, Yasar S, Williams V, Singh H, Mazina L, Helmer KG, Corriveau RA, Schwab K, Kivisäkk P, Greenberg SM; MarkVCID Consortium. Wilcock D, et al. Among authors: helmer kg. Alzheimers Dement. 2021 Apr;17(4):704-715. doi: 10.1002/alz.12215. Epub 2021 Jan 21. Alzheimers Dement. 2021. PMID: 33480172 Free PMC article.

9

Separating changes in the intra- and extracellular water apparent diffusion coefficient following focal cerebral ischemia in the rat brain.

Silva MD, Omae T, Helmer KG, Li F, Fisher M, Sotak CH. Silva MD, et al. Among authors: helmer kg. Magn Reson Med. 2002 Nov;48(5):826-37. doi: 10.1002/mrm.10296. Magn Reson Med. 2002. PMID: 12417997 Free article.

10

Comparison of the return-to-the-origin probability and the apparent diffusion coefficient of water as indicators of necrosis in RIF-1 tumors.

Helmer KG, Meiler MR, Sotak CH, Petruccelli JD. Helmer KG, et al. Magn Reson Med. 2003 Mar;49(3):468-78. doi: 10.1002/mrm.10400. Magn Reson Med. 2003. PMID: 12594749 Free article.

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