The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
A comparison of two methods for measuring the signal to noise ratio on MR images
Open accessAbstract
The signal to noise ratio (SNR) is one of the important measures of the performance of a magnetic resonance imaging (MRI) system. The object of this study was to compare a single acquisition method, which estimates the noise from background pixels, with a dual acquisition method which estimates the noise from the subtraction of two sequentially acquired images. The dual acquisition method is more exact, but is slower to perform and requires image manipulation. A comparison between the two methods gave a good correlation, and a regression equation of SNRsingle = 1.1 + 0.94 SNRdual. The single acquisition method is therefore appropriate for use in a quality assurance programme, since it is quicker and simpler to perform and is a good indicator of the more exact measure.
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
STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT
Martin Bland, J., & Altman, D. (1986) · The Lancet · doi:10.1016/s0140-6736(86)90837-8 · Cited by 47,965
Cited by
Dietrich, O., Raya, J. G., Reeder, S. B., Reiser, M. F., & Schoenberg, S. O. (2007) · Journal of Magnetic Resonance Imaging · doi:10.1002/jmri.20969 · Cited by 992
Performance Measurements of the Siemens mMR Integrated Whole-Body PET/MR Scanner
Delso, G., Fürst, S., Jakoby, B., Ladebeck, R., Ganter, C., Nekolla, S. G., Schwaiger, M., & Ziegler, S. I. (2011) · Journal of Nuclear Medicine · doi:10.2967/jnumed.111.092726 · Cited by 874
Militello, C., Rundo, L., Toia, P., Conti, V., Russo, G., Filorizzo, C., Maffei, E., Cademartiri, F., La Grutta, L., Midiri, M., et al. (2019) · Computers in Biology and Medicine · doi:10.1016/j.compbiomed.2019.103424 · Cited by 71
High Resolution T1ρ Mapping of In Vivo Human Knee Cartilage at 7T
Singh, A., Haris, M., Cai, K., Kogan, F., Hariharan, H., & Reddy, R. (2014) · PLoS ONE · doi:10.1371/journal.pone.0097486 · Cited by 48
Metadata
- Authors
- Firbank, M. J., Coulthard, A., Harrison, R. M., & Williams, E. D.
- Venue
- Physics in Medicine and Biology
- Publisher
- IOP Publishing
- Published
- 1999-11-22
- Volume
- 44
- Issue
- 12
- Pages
- N261-N264
- ISSN
- 0031-9155 (ISSN-L)
- 1361-6560
- OpenAlex
- W2058452916
- Cited by
- 256
- References
- 1
- FWCI
- 2.43
- Type
- journal article
- Language
- en
- Open access
- bronze
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: A comparison of two methods for measuring the signal to noise ratio on MR images. https://app.cochat.ai/papers/10.1088/0031-9155/44/12/403
- The paper
- Firbank, M. J., Coulthard, A., Harrison, R. M., & Williams, E. D. (1999). A comparison of two methods for measuring the signal to noise ratio on MR images. Physics in Medicine and Biology. https://doi.org/10.1088/0031-9155/44/12/403
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.
