2025
Intravenous infusion of mesenchymal stem cells increased axonal signal intensity in the rubrospinal tract in spinal cord injury
Hirota R, Sasaki M, Teramoto A, Yamashita T, Kocsis J, Honmou O. Intravenous infusion of mesenchymal stem cells increased axonal signal intensity in the rubrospinal tract in spinal cord injury. Molecular Brain 2025, 18: 35. PMID: 40241097, PMCID: PMC12004759, DOI: 10.1186/s13041-025-01210-0.Peer-Reviewed Original ResearchConceptsIntravenous infusion of mesenchymal stem cellsInfusion of mesenchymal stem cellsSpinal cord injuryIntravenous infusionMesenchymal stem cellsRubrospinal tractCircuit reorganizationInfused mesenchymal stem cellsCord injuryNeural circuit reorganizationNeuronal tracing techniquesSignal intensityInjury siteFunctional improvementSpontaneous recoveryStem cellsDescending tractsAxonal connectionsInjuryAxonal growthTractAxonal networkMulticilia dynamically transduce Sonic Hedgehog signaling to regulate choroid plexus functions
Mao S, Song R, Jin S, Pang S, Jovanovic A, Zimmerman A, Li P, Wu X, Wendland M, Lin K, Chen W, Choksi S, Chen G, Holtzman M, Reiter J, Wan Y, Xuan Z, Xiang Y, Xu C, Upadhyayula S, Hess H, He L. Multicilia dynamically transduce Sonic Hedgehog signaling to regulate choroid plexus functions. Cell Reports 2025, 44: 115383. PMID: 40057957, DOI: 10.1016/j.celrep.2025.115383.Peer-Reviewed Original ResearchConceptsCSF productionChoroid plexusCerebrospinal fluidSonic hedgehog signalingWater channel AQP1Increased CSF productionHedgehog signalingChoroid plexus functionMotile ciliaMulticiliaSensory ciliaShh signalingNeonatal hydrocephalusSonic hedgehogCiliary lengthRegulate CSF productionSignal intensityCiliary ultrastructureChoroidEpithelial monolayersAQP1Developmental dynamicsCiliaATP1A2Plexus
2023
Decay in Entorhinal White Matter/Gray Matter contrast in Alzheimer’s Disease Patients is reduced by 40Hz sensory stimulation
Da X, Hempel E, Malchano Z, Vaughan B, Megerian J, Hajos M, Cimenser A. Decay in Entorhinal White Matter/Gray Matter contrast in Alzheimer’s Disease Patients is reduced by 40Hz sensory stimulation. Alzheimer's & Dementia 2023, 19 DOI: 10.1002/alz.077337.Peer-Reviewed Original ResearchMagnetic resonance imagingEntorhinal regionAlzheimer's diseaseWhite matterPlacebo groupDisease patientsMRI measuresTreatment groupsPlacebo-controlled feasibility studyPhase I/IISensory stimulationMonth 6 visitMonths of treatmentStructural magnetic resonance imagingAlzheimer's disease patientsSignal intensityT1 magnetic resonance imagingLinear mixed-effects modelingMonth 3WM atrophyMyelin lossAD severityWM/GM contrastMixed-effects modelingAD patients
2022
Bedside monitoring of hypoxic ischemic brain injury using low-field, portable brain magnetic resonance imaging after cardiac arrest
Beekman R, Crawford A, Mazurek MH, Prabhat AM, Chavva IR, Parasuram N, Kim N, Kim JA, Petersen N, de Havenon A, Khosla A, Honiden S, Miller PE, Wira C, Daley J, Payabvash S, Greer DM, Gilmore EJ, Kimberly W, Sheth KN. Bedside monitoring of hypoxic ischemic brain injury using low-field, portable brain magnetic resonance imaging after cardiac arrest. Resuscitation 2022, 176: 150-158. PMID: 35562094, PMCID: PMC9746653, DOI: 10.1016/j.resuscitation.2022.05.002.Peer-Reviewed Original ResearchConceptsCardiac arrestBrain injuryHypoxic-ischemic brain injuryAdverse neurological outcomesIschemic brain injurySingle-center studyBrain magnetic resonanceBrain injury severityBoard-certified neuroradiologistsLow-field MRIFLAIR signal intensityNeurological outcomeCA patientsIll patientsMRI findingsCA survivorsCenter studyMRI examinationsClinical careHigh riskInjury severityPatientsSignal intensityBedside monitoringMR imaging
2020
Comparing Image Segmentation Techniques for Determining 3D Orbital Cavernous Hemangioma Size on MRI.
Boparai R, Maeng M, Dunbar K, Godfrey K, Tooley A, Maher M, Kazim M. Comparing Image Segmentation Techniques for Determining 3D Orbital Cavernous Hemangioma Size on MRI. Ophthalmic Plastic And Reconstructive Surgery 2020, 36: 569-574. PMID: 32427734, DOI: 10.1097/iop.0000000000001651.Peer-Reviewed Original ResearchConceptsAverage tumor sizeTumor sizeInterobserver agreementHemangioma sizeOrbital cavernous hemangiomaConcordance correlation coefficientT2-weighted MRIEvaluate interobserver agreementCavernous hemangiomaLin's concordance correlation coefficientK-meansTumor boundariesSegmentation methodMRISignal intensitySubjective judgmentCorrelation coefficientImage segmentation methodImage segmentation techniquesParameter-dependent methodDegree of subjective judgmentK-means clusteringK-means clustering methodK-means clustering segmentationHemangioma
2017
Signal intensity at unenhanced T1-weighted magnetic resonance in the globus pallidus and dentate nucleus after serial administrations of a macrocyclic gadolinium-based contrast agent in children
Rossi Espagnet M, Bernardi B, Pasquini L, Figà-Talamanca L, Tomà P, Napolitano A. Signal intensity at unenhanced T1-weighted magnetic resonance in the globus pallidus and dentate nucleus after serial administrations of a macrocyclic gadolinium-based contrast agent in children. Pediatric Radiology 2017, 47: 1345-1352. PMID: 28526896, DOI: 10.1007/s00247-017-3874-1.Peer-Reviewed Original ResearchConceptsMacrocyclic gadolinium-based contrast agentsGadolinium-based contrast agentsSignal intensity ratioGadolinium-based contrast agent administrationPediatric brainGlobus pallidus-to-thalamusUnenhanced T1-weighted MR imagesDentate nucleusUnenhanced T1-weighted magnetic resonanceAdministration of macrocyclic gadolinium-based contrast agentsEffects of multiple administrationsMR signal intensity ratioGlobus pallidusUnenhanced T1-weighted imagesSignal intensity ratio differencesNormal renal functionDentate nucleus-to-ponsT1-weighted MR imagesSignal intensityT1-weighted imagesSignal intensity changesT1-weighted magnetic resonanceContrast agentsDentate nucleus-to-pons signal intensity ratioRenal function
2016
Fluctuations in Global Brain Activity Are Associated With Changes in Whole-Brain Connectivity of Functional Networks
Scheinost D, Tokoglu F, Shen X, Finn ES, Noble S, Papademetris X, Constable RT. Fluctuations in Global Brain Activity Are Associated With Changes in Whole-Brain Connectivity of Functional Networks. IEEE Transactions On Biomedical Engineering 2016, 63: 2540-2549. PMID: 27541328, PMCID: PMC5180443, DOI: 10.1109/tbme.2016.2600248.Peer-Reviewed Original ResearchConceptsGlobal brain activityResting-state networksWhole-brain connectivityBrain activityResting-state functional magnetic resonance imagingTime pointsFunctional resting-state networksFunctional magnetic resonance imagingMagnetic resonance imagingResting-state studyBrain statesRSN connectivitySensory functionSubcortical regionsResonance imagingCognitive functionCoactivation patternsUnique brain statesBrain connectivityActivity stateCritical time pointsFunctional networksSignal intensityVoxel-based methodBrain dynamics
2013
In vivo GABA T2 determination with J‐refocused echo time extension at 7 T
Andreychenko A, Klomp D, de Graaf R, Luijten P, Boer V. In vivo GABA T2 determination with J‐refocused echo time extension at 7 T. NMR In Biomedicine 2013, 26: 1596-1601. PMID: 23893556, DOI: 10.1002/nbm.2997.Peer-Reviewed Original ResearchConceptsCoupled spin systemsSpin systemsRelaxation timeEcho timeJ-coupled spinsT. A methodMultiple echo timesEdited signalSpectral editing techniquesShort echo timeT2 decay curvesT2 decayJ-couplingMEGA-sLASERTarget resonancesJ-modulationShape correctionEdited spectraDecay curvesResonanceT2 determinationT2 relaxation timesSpinSignal intensityDecay
2010
Hypertrophic Cardiomyopathy: Quantification of Late Gadolinium Enhancement with Contrast-enhanced Cardiovascular MR Imaging
Harrigan CJ, Peters DC, Gibson CM, Maron BJ, Manning WJ, Maron MS, Appelbaum E. Hypertrophic Cardiomyopathy: Quantification of Late Gadolinium Enhancement with Contrast-enhanced Cardiovascular MR Imaging. Radiology 2010, 258: 128-33. PMID: 21045187, DOI: 10.1148/radiol.10090526.Peer-Reviewed Original ResearchConceptsLate gadolinium enhancementHypertrophic cardiomyopathyGadolinium enhancementExtent of LGEMean signal intensityCardiovascular magnetic resonance imagingLGE cardiovascular magnetic resonance imagingNormal remote myocardiumVisual assessmentMagnetic resonance imagingInternal Review BoardStudy patientsMean ageBland-Altman analysisLarge cohortRemote myocardiumBody weightMore weeksPatientsSignal intensityResonance imagingGadopentetate dimeglumineMore SDsMR imagingReview board
2003
Discrimination of Metastatic from Acute Osteoporotic Compression Spinal Fractures with MR Imaging1
Jung H, Jee W, McCauley T, Ha K, Choi K. Discrimination of Metastatic from Acute Osteoporotic Compression Spinal Fractures with MR Imaging1 . RadioGraphics 2003, 23: 179-87. PMID: 12533652, DOI: 10.1148/rg.231025043.Peer-Reviewed Original ResearchConceptsAcute osteoporotic compression fracturesOsteoporotic compression fracturesMetastatic compression fracturesCompression fracturesT2-weighted imagesEpidural massVertebral bodyMagnetic resonance imaging (MRI) findingsBone marrow signal intensityConvex posterior borderNormal bone marrow signal intensityMultiple compression fracturesResonance Imaging FindingsAbnormal signal intensityMarrow signal intensitySignal intensitySpinal metastasesImaging findingsSpinal fracturesParaspinal massPosterior elementsSpin-echo T2-weighted imagesMR Imaging1Posterior borderFast spin-echo T2-weighted images
2002
Impaired detection of visual motion in schizophrenia patients
Li CS. Impaired detection of visual motion in schizophrenia patients. Progress In Neuro-Psychopharmacology And Biological Psychiatry 2002, 26: 929-934. PMID: 12369268, DOI: 10.1016/s0278-5846(02)00207-5.Peer-Reviewed Original ResearchConceptsSchizophrenia patientsNormal controlsNormal subjectsPatientsSignal detection theorySimilar deficitsImpaired detectionCore deficitAttention impairmentMotion stimuliSensory modalitiesVisual tasksResponse biasVisual motionRecent reportsAuditory detectionDetection theoryTrialsDeficitsRandom dotsPsychometric functionsSignal intensitySensitivity variesGroupCoherent direction
2001
Dysprosium‐bearing red cells as potential transverse relaxation agents for MRI
Johnson K, Tao J, Kennan R, Gore J. Dysprosium‐bearing red cells as potential transverse relaxation agents for MRI. Magnetic Resonance In Medicine 2001, 45: 920-923. PMID: 11323820, DOI: 10.1002/mrm.1122.Peer-Reviewed Original Research
1996
Short echo time proton magnetic resonance spectroscopic imaging of macromolecule and metabolite signal intensities in the human brain
Hwang J, Graham G, Behar K, Alger J, Prichard J, Rothman D. Short echo time proton magnetic resonance spectroscopic imaging of macromolecule and metabolite signal intensities in the human brain. Magnetic Resonance In Medicine 1996, 35: 633-639. PMID: 8722812, DOI: 10.1002/mrm.1910350502.Peer-Reviewed Original ResearchConceptsSubacute stroke patientsProton magnetic resonance spectroscopicProton magnetic resonance spectroscopic imagingMagnetic resonance spectroscopic imagingStroke patientsHealthy subjectsMagnetic resonance spectroscopicMetabolite signal intensitiesBrain regionsPathological conditionsMacromolecule resonancesHuman brainBrainSignal intensitySubjectsRecovery timeSpectroscopic imagingPatients
1994
Dynamic Magnetic Resonance Imaging of the Rat Brain during Forepaw Stimulation
Hyder F, Behar K, Martin M, Blamire A, Shulman R. Dynamic Magnetic Resonance Imaging of the Rat Brain during Forepaw Stimulation. Cerebrovascular And Brain Metabolism Reviews 1994, 14: 649-655. PMID: 8014212, DOI: 10.1038/jcbfm.1994.81.Peer-Reviewed Original ResearchConceptsSomatosensory areaChloralose-anesthetized ratsDynamic magnetic resonance imagingMagnetic resonance imagingForelimb motorForepaw stimulationRat brainBrain mapping methodsElectrical stimulationMR signal intensityParietal cortexResonance imagingBrain tissueCoronal planeFractional signal changeStimulationSignal changesOxygenation stateSignal intensityRatsAnteriorCortexBloodBrain
1992
Submucosal uterine leiomyomas: diagnosis of prolapse into the cervix and vagina based on MR imaging.
Panageas E, Kier R, McCauley T, McCarthy S. Submucosal uterine leiomyomas: diagnosis of prolapse into the cervix and vagina based on MR imaging. American Journal Of Roentgenology 1992, 159: 555-8. PMID: 1503024, DOI: 10.2214/ajr.159.3.1503024.Peer-Reviewed Original ResearchConceptsMR imagingUterine leiomyomaCaudal extentVaginal canalPresence of prolapsePresence of hemorrhageHysteroscopic resectionSubmucosal leiomyomaPathologic findingsDiagnosis of prolapseHemorrhagic fociSurgical pathologyMR imagesLeiomyomaFifth caseMR appearanceProlapseProspective localizationFast spin-echo sequenceDiagnosisSpin-echo sequenceDistal tipImagingSignal intensityCanalNormal and abnormal glenoid labrum: assessment with multiplanar gradient-echo MR imaging.
McCauley T, Pope C, Jokl P. Normal and abnormal glenoid labrum: assessment with multiplanar gradient-echo MR imaging. Radiology 1992, 183: 35-7. PMID: 1549691, DOI: 10.1148/radiology.183.1.1549691.Peer-Reviewed Original ResearchConceptsLabral tearsHealthy subjectsGlenoid labrumSubsequent surgical evaluationAtypical morphologyMagnetic resonance imagingGradient-echo MR imagingRetrospective studySurgical evaluationMorphologic findingsPatientsResonance imagingSignal intensityNormal shouldersMR imagingTearsGradient echo sequenceNormal labrumGlenoid cavityLabrumDeformityLabral integrityShoulderSubjectsCleft
1991
Applications of nuclear magnetic cross‐relaxation spectroscopy to tissues
Grad J, Mendelson D, Hyder F, Bryant R. Applications of nuclear magnetic cross‐relaxation spectroscopy to tissues. Magnetic Resonance In Medicine 1991, 17: 452-459. PMID: 2062216, DOI: 10.1002/mrm.1910170216.Peer-Reviewed Original ResearchConceptsCross-relaxation spectroscopyFundamental relaxation timeMagnetic imagingMagnetic imagesMagnetic relaxationDecay constantsAqueous heterogeneous systemsRelaxation timeWater spinsSpinNMR spectraRelaxationFrequency responseSpectroscopySpectraExperimental approachSignal intensitySystem mixtureIntensityConstantsImagingMRI of the normal hippocampus
Bronen R, Cheung G. MRI of the normal hippocampus. Magnetic Resonance Imaging 1991, 9: 497-500. PMID: 1779720, DOI: 10.1016/0730-725x(91)90035-k.Peer-Reviewed Original ResearchConceptsHippocampal signal intensityCortical gray matterSpecific anatomic locationsNormal hippocampusHippocampal changesAnatomic locationDisease processNormal volunteersHippocampal sizeGray matterPathologic disordersMR studiesHippocampusMemory disordersNormal variationDisordersSignal intensityMild variationEpilepsy
1990
The value of MR imaging in distinguishing leiomyomas from other solid pelvic masses when sonography is indeterminate.
Weinreb J, Barkoff N, Megibow A, Demopoulos R. The value of MR imaging in distinguishing leiomyomas from other solid pelvic masses when sonography is indeterminate. American Journal Of Roentgenology 1990, 154: 295-9. PMID: 2105017, DOI: 10.2214/ajr.154.2.2105017.Peer-Reviewed Original ResearchConceptsSolid pelvic massPelvic massUterine leiomyomaLow signal intensityMR imagingMalignant tumorsMR criteriaPedunculated uterine leiomyomaPelvic malignant tumorsOvarian malignant tumorsDiagnosis of leiomyomaSquamous cell carcinomaSolid adnexal massesTypes of tumorsT2-weighted imagesT1-weighted imagesOvarian fibromaCell carcinomaAdnexal massesBroad ligamentSonographic appearanceDiagnostic criteriaLeiomyomaSignal intensityNormal myometrium
1989
Endometriosis: appearance and detection at MR imaging.
Zawin M, McCarthy S, Scoutt L, Comite F. Endometriosis: appearance and detection at MR imaging. Radiology 1989, 171: 693-6. PMID: 2717740, DOI: 10.1148/radiology.171.3.2717740.Peer-Reviewed Original Research
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