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Open Imaging Index
MRI Brain

Radiation Temporal Lobe Injury Diffusion MRI (SYSMH)

Comparative Study of Multi-Model Diffusion Magnetic Resonance Imaging in the Diagnosis of Radiation-Induced Temporal Lobe Injury

Diffusion MRI of patients with unilateral temporal lobe necrosis after radiotherapy for nasopharyngeal carcinoma, used to compare ADC, DTI, DKI, MAP-MRI and NODDI parameters between the injured and the healthy side. Only a table of per-lobe parameter values is public; the scans are not shared.

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Overview

This Science Data Bank record comes from a retrospective study at the Department of Radiology of Sun Yat-sen Memorial Hospital, Sun Yat-sen University, in Guangzhou, China. The study asked which diffusion MRI model best separates a temporal lobe damaged by radiotherapy from the healthy temporal lobe on the other side. It compared the apparent diffusion coefficient with parameters from diffusion tensor imaging (DTI), diffusion kurtosis imaging (DKI), mean apparent propagator MRI (MAP-MRI) and neurite orientation dispersion and density imaging (NODDI), using ROC analysis. The record was published on 30 January 2026 as version 1 under CC0.

Composition

The description reports 80 patients who developed temporal lobe necrosis on one side after radiotherapy for nasopharyngeal carcinoma. Each patient serves as their own control, with the unaffected temporal lobe as the reference. Age, sex, time since radiotherapy and scanner are not given. The only file is a small results table with one row per temporal lobe and columns for DKI radial kurtosis, DTI radial diffusivity, MAP-MRI non-Gaussianity anisotropy, NODDI intracellular volume fraction and ADC, plus label columns.

Acquisition

All patients had conventional MRI and a diffusion MRI examination. All five models were fitted to the same diffusion data. Field strength, vendor, b-values, number of directions and the conventional sequences are not described.

Known limitations

  • No images are public, only one table of derived values, so the cohort cannot be reanalysed from the scans.
  • No study paper is linked from the record and none was found, so the design is known only from the record's description and the table's column names.
  • Demographics and acquisition parameters are missing.
  • Single centre, retrospective, and limited to patients with unilateral necrosis.

Cohort

Aggregate numbers from the sources below. Bars are relative to the 80 subjects.

Contrast / sequence

Groups can overlap

  • Diffusion-weighted 80 100%

Description in Science Data Bank record 10.57760/sciencedb.dmh.00825 (V1), its description, file listing and DataCite metadata

Condition

Groups can overlap

  • Radiation necrosis 80 100%
  • Nasopharyngeal carcinoma 80 100%

Description in Science Data Bank record 10.57760/sciencedb.dmh.00825 (V1), its description, file listing and DataCite metadata

License and access

Our reading of the license, not legal advice. Before you use the data, read the original license and confirm that your use is allowed. We take no responsibility for how you use a dataset. Full disclaimer

Access
Not shared

The data are not available outside the institution or study that holds them

The Science Data Bank record holds one results table (6958 bytes) with diffusion parameter values (DKI radial kurtosis, DTI radial diffusivity, MAP-MRI non-Gaussianity anisotropy, NODDI intracellular volume fraction and ADC) for the affected and the contralateral temporal lobe of each patient. No images are deposited and no route to them is given.

Access page

Different parts of the data carry different licenses. The summary on the right shows the most restrictive answer per rule.

For Results table on Science Data Bank

Creative Commons Zero 1.0 Universal

Public domain dedication. Do anything with the data, including commercial use, without asking and without having to give credit.

Original license text Version read: 1.0 Checked 2026-10-07

What you can do

  • Yes
  • Yes
  • Yes
  • Yes
  • Yes

What you can share

  • Yes
  • Yes
  • Yes

What you must do

  • No
  • Share alike No
  • No
  • No
  • Manuscript review No
  • Release code No
  • Return results No
  • Delete after use No

Limits

  • No
  • Location limits No
For Patients' MRI scans, which are not shared

No published license or data use terms

The data holder has published no license and no data use terms. Any use, sharing or commercial right has to be agreed with the data holder, and nothing can be assumed to be allowed. Default copyright and data protection law still apply.

No release or terms are stated for the scans themselves.

Original license text Checked 2026-10-08

What you can do

  • Commercial use Not stated
  • Not stated
  • Train ML models Not stated
  • Create derived data Not stated
  • Publish results Not stated

What you can share

  • Share the data Not stated
  • Share derived data Not stated
  • Share trained models Not stated

What you must do

  • Cite or credit Not stated
  • Share alike Not stated
  • Sign an agreement Not stated
  • Ethics approval Not stated
  • Manuscript review Not stated
  • Release code Not stated
  • Return results Not stated
  • Delete after use Not stated

Limits

  • No re-identification Not stated
  • Location limits Not stated

Citation

Liu M, Chen X, Pei Y, Wang L, Yan Z, Su W, Su Y, Jiang Y. Comparative Study of Multi-Model Diffusion Magnetic Resonance Imaging in the Diagnosis of Radiation-Induced Temporal Lobe Injury. V1. Science Data Bank, 2026. doi:10.57760/sciencedb.dmh.00825

Sources

Every number on this page comes from one of these documents. Each chart names the table or page it is taken from. The raw numbers are in stats.csv.