{
  "ptid_time": "036_S_4538_2013-05-30",
  "img_path": "/data/qiuhui/data/adni/images/036_S_4538/2013-05-30/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,003 mm³, 15.6% below the reference mean. With a Z-score of -1.43 (7.6th percentile), this represents mild atrophy; whole brain volume measures 923,727 mm³, 5.2% below the reference mean. With a Z-score of -0.66 (25.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,233 mm³, 12.0% below the reference mean. With a Z-score of -0.74 (23.1th percentile), this represents normal volume ; fusiform gyrus volume measures 17,256 mm³, 1.4% above the reference mean. With a Z-score of 0.13 (55.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,099 mm³, 0.4% below the reference mean. With a Z-score of -0.03 (48.7th percentile), this represents normal volume . ",
  "text_data": "Age is 79.8 years. Gender is Female. Education: 15 years. MMSE: 26.0. MoCA: 20.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows mild atrophy (Z-score -1.43, 7.6th percentile), while other brain regions are within normal ranges. The MMSE score of 26 is borderline, but the MoCA score of 20 suggests mild cognitive impairment (MCI). The presence of one APOE4 allele increases Alzheimer's risk.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (hippocampal atrophy and MoCA support MCI, but MMSE is less definitive and other regions are normal).",
  "timestamp": "2025-07-26T06:15:00.902604"
}