Magnetic resonance spectroscopy of rat kidney <i>in vivo</i> at 9.4 T
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Bibliographic record
Abstract
Abstract Glutamate (Glu), glutamine (Gln), myo -insotol (Ins), taurine (Tau), choline (Cho), and betaine (Bet) are kidney metabolites whose levels are relevant to the study of Renal Cell Carcinoma (RCC). The presented work investigates the quantification of Glx (Glu + Gln), Ins, and Tau, relative to Cho + Bet with magnetic resonance spectroscopy (MRS) in rat kidney at 9.4 T. The Point-Resolved Spectroscopy (PRESS) pulse sequence was employed for non-invasive MRS acquisition in vivo from the right kidney of four rats. LCModel was utilized for peak fitting and spectral analysis of the in-vivo spectra. Relative metabolite concentrations and LCModel Cramér-Rao Lower Bounds (CRLBs) are reported. Relative metabolite concentrations are reported because the absolute concentration of any metabolite is unknown. The concentrations of Glx, Ins, and Tau, relative to Cho + Bet, the largest peak, were found to be, on average, 2.16, 1.40, and 2.17, with average CRLB values of 12.5%, 12.8%, and 16.8%, respectively. The average CRLB of Cho + Bet was 4.8%. To our knowledge, this is the first non-invasive MRS study of rat kidney.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it