Category: Data Processing

Recent Advances in in-vivo Spectroscopy at CNI

Recent Advances in in-vivo Spectroscopy Methods Background CNI continues to support, via the CNI spectroscopy special interest group, the research of its user community.  This support includes developing and incorporating for general use new data acquisition and data analysis capabilities as recommended by the at-large MRS community. The primary focus is on measuring metabolic changes… Read more Recent Advances in in-vivo Spectroscopy at CNI

Recent advances in in-vivo spectroscopy methods at CNI

Recent advances in in-vivo spectroscopy methods at CNI Background Interest in measuring metabolic changes via MRS techniques and combining that information with functional MRI measurements in neuroscience studies continues to grow. CNI continues to support the research of its user community by developing and incorporating for general use new data acquisition and data analysis capabilities… Read more Recent advances in in-vivo spectroscopy methods at CNI

Recent advances in in-vivo spectroscopy methods and applications at CNI

Recent advances in In-vivo spectroscopy methods at the CNI Background A growing number of people at the CNI are interested in measuring metabolic changes in the brain using in-vivo spectroscopy (MRS) techniques.  Often, they combine this information with functional MRI measurements. The special interest spectroscopy group at CNI  develops and supports new MRS data acquisition and… Read more Recent advances in in-vivo spectroscopy methods and applications at CNI

Update on Physiological Data Association in Flywheel

Dear CNI Users, In August we wrote to you regarding a problem we found within the CNI Flywheel instance (cni.flywheel.io). In some cases the physiological data (respiratory and cardiac waveforms) from the scanner were not matched to the correct acquisition in Flywheel, or were not uploaded at all. We have determined that such failures occurred most… Read more Update on Physiological Data Association in Flywheel

Laima measures GABA

You may have been wondering about Laima’s experimental work over the last few years.  You can now read about it in a paper co-authored by folks who work at the CNI, GE, and Lucas.  Nice collaboration! GABA editing with macromolecule suppression using an improved MEGA-SPECIAL sequence Meng Gu, Ralph Hurd, Ralph Noeske, Laima Baltusis, Roeland Hancock, Matthew D. Sacchet, Ian H. Gotlib, Frederick T. Chin, Daniel M. Spielman… Read more Laima measures GABA

Upgrade Plan for DV26

Executive summary We will be upgrading the GE software and computational infrastructure in late September (from DV25 to DV26). The reasons and implications for your projects are explained below in detail. To migrate the CNI sequences to this new environment, the CNI development team needs time on the scanner (we estimate about 12 hours).  As… Read more Upgrade Plan for DV26

Optimizing image quality: Fieldmaps and shimming

Acquiring a high quality fieldmap of the mean magnetic field is crucial to obtaining a good measurement.  Making sure you set the parameters so that this field map is obtained as part of your protocol is something we help you with.  There are cases, including new sequences, where this can require some extra attention. The… Read more Optimizing image quality: Fieldmaps and shimming

SMS, EPI and tSNR (long)

Bob, Hua and the CNI team are working with the community to improve our methods.  The text below – excerpted from a recent exchange with the Wagner lab – illustrates the tools we use to exchange data and computational methods.  This software infrastructure is an important part of the CNI research and development mission. The story below illustrates how… Read more SMS, EPI and tSNR (long)