The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
T1 and T2 in the Brain of Healthy Subjects, Patients with Parkinson Disease, and Patients with Multiple System Atrophy: Relation to Iron Content
Abstract
PURPOSE: To investigate the potential of magnetic resonance imaging for identification and quantification of brain iron in healthy subjects, patients with Parkinson disease, and patients with multiple system atrophy. MATERIALS AND METHODS: Forty-nine subjects were studied at 1.5 T. Regional T1 and T2 values were compared among groups and also with histopathologic estimates of iron concentration. RESULTS: In healthy subjects, interregional T1 and T2 differences in the cortex and basal ganglia showed a good correlation with reported values for iron concentration, and intraregional variations were generally consistent with reported variability of iron concentration. Patients with multiple system atrophy had T1 and T2 shortening in the globus pallidus consistent with reported increases in ferritin-bound iron and changes in the putamen consistent with accumulation of hemosiderin (posterior portion) and neuromelanin (remainder). Both groups of patients had changes in the cortex that are consistent with decreased ferritin concentration and T2 changes in white matter consistent with demyelination. Patients with Parkinson disease also had a (nonsignificant) T2 shortening in the substantia nigra that was suggestive of iron accumulation. CONCLUSION: Most of the T1 and T2 findings appear to be related to changes in iron content and form and may possibly be used as indicators of such changes.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Dexter, D. T., Wells, F. R., Lee, A. J., Agid, F., Agid, Y., Jenner, P., & Marsden, C. D. (1989) · Journal of Neurochemistry · doi:10.1111/j.1471-4159.1989.tb07264.x · Cited by 1,149
DEXTER, D. T., CARAYON, A., JAVOY-AGID, F., AGID, Y., WELLS, F. R., DANIEL, S. E., LEES, A. J., JENNER, P., & MARSDEN, C. D. (1991) · Brain · doi:10.1093/brain/114.4.1953 · Cited by 1,043
The oxidant stress hypothesis in Parkinson's disease: Evidence supporting it
Fahn, S., & Cohen, G. (1992) · Annals of Neurology · doi:10.1002/ana.410320616 · Cited by 927
Brain iron and ferritin in Parkinson’s and Alzheimer’s diseases
Jellinger, K., Paulus, W., Grundke-Iqbal, I., Riederer, P., & Youdim, M. B. H. (1990) · Journal of Neural Transmission - Parkinson's Disease and Dementia Section · doi:10.1007/bf02252926 · Cited by 445
Cited by
Magnetic resonance fingerprinting
Ma, D., Gulani, V., Seiberlich, N., Liu, K., Sunshine, J. L., Duerk, J. L., & Griswold, M. A. (2013) · Nature · doi:10.1038/nature11971 · Cited by 1,577
Imaging iron stores in the brain using magnetic resonance imaging
Haacke, E. M., Cheng, N. Y. C., House, M. J., Liu, Q., Neelavalli, J., Ogg, R. J., Khan, A., Ayaz, M., Kirsch, W., & Obenaus, A. (2005) · Magnetic Resonance Imaging · doi:10.1016/j.mri.2004.10.001 · Cited by 995
Sasaki, M., Shibata, E., Tohyama, K., Takahashi, J., Otsuka, K., Tsuchiya, K., Takahashi, S., Ehara, S., Terayama, Y., & Sakai, A. (2006) · Neuroreport · doi:10.1097/01.wnr.0000227984.84927.a7 · Cited by 496
Tracer kinetic modelling for DCE-MRI quantification of subtle blood–brain barrier permeability
Heye, A. K., Thrippleton, M. J., Armitage, P. A., Valdés Hernández, M. D. C., Makin, S. D., Glatz, A., Sakka, E., & Wardlaw, J. M. (2016) · NeuroImage · doi:10.1016/j.neuroimage.2015.10.018 · Cited by 187
Andersen, H. H., Johnsen, K. B., & Moos, T. (2014) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-013-1509-8 · Cited by 151
Metadata
- Authors
- Vymazal, J., Righini, A., Brooks, R. A., Canesi, M., Mariani, C., Leonardi, M., & Pezzoli, G.
- Venue
- Radiology
- Published
- 1999-05
- Volume
- 211
- Issue
- 2
- Pages
- 489-495
- ISSN
- 0033-8419 (ISSN-L)
- 1527-1315
- OpenAlex
- W2152732392
- Cited by
- 342
- References
- 4
- FWCI
- 3.41
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: T1 and T2 in the Brain of Healthy Subjects, Patients with Parkinson Disease, and Patients with Multiple System Atrophy: Relation to Iron Content. https://app.cochat.ai/papers/10.1148/radiology.211.2.r99ma53489
- The paper
- Vymazal, J., Righini, A., Brooks, R. A., Canesi, M., Mariani, C., Leonardi, M., & Pezzoli, G. (1999). T1 and T2 in the Brain of Healthy Subjects, Patients with Parkinson Disease, and Patients with Multiple System Atrophy: Relation to Iron Content. Radiology. https://doi.org/10.1148/radiology.211.2.r99ma53489
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.