{
  "ptid_time": "130_S_2391_2011-12-16",
  "img_path": "/data/qiuhui/data/adni/images/130_S_2391/2011-12-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,443 mm³, 55.7% below the reference mean. With a Z-score of -1.27 (10.1th percentile), this represents mild atrophy; hippocampal volume measures 7,444 mm³, 4.6% above the reference mean. With a Z-score of 0.42 (66.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,005 mm³, 18.2% below the reference mean. With a Z-score of -1.12 (13.2th percentile), this represents mild atrophy; fusiform gyrus volume measures 15,465 mm³, 9.1% below the reference mean. With a Z-score of -0.83 (20.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,569 mm³, 13.6% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 72.2 years. Gender is Female. Education: 12 years. MMSE: 25.0. MoCA: 25.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The imaging shows mild atrophy in ventricular volume, entorhinal cortex, and middle temporal gyrus, while hippocampal and fusiform gyrus volumes are within normal ranges. Cognitive scores (MMSE and MoCA of 25) are slightly below typical cutoffs for normal cognition (usually ≥26), suggesting possible mild cognitive impairment (MCI). The presence of one APOE4 allele increases Alzheimer's risk but is not definitive.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (Cognitive scores are borderline, and atrophy is mild but not widespread enough for a dementia diagnosis.)",
  "timestamp": "2025-07-26T14:37:20.827779"
}