{
  "ptid_time": "036_S_0673_2008-02-07",
  "img_path": "/data/qiuhui/data/adni/images/036_S_0673/2008-02-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,933 mm³, 30.1% below the reference mean. With a Z-score of -0.72 (23.6th percentile), this represents normal volume ; whole brain volume measures 981,662 mm³, 9.1% below the reference mean. With a Z-score of -1.18 (12.0th percentile), this represents mild atrophy. ",
  "text_data": "Age is 79.7 years. Gender is Male. Education: 16 years. MMSE: 26.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy but normal ventricular volume. The MMSE score of 26 is slightly below the typical cutoff for dementia (≤24), but given the mild atrophy and APOE4 homozygosity (high genetic risk), this suggests possible early cognitive decline.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (MMSE is borderline, but atrophy and APOE4 status support MCI over normal aging)",
  "timestamp": "2025-07-26T06:03:46.053462"
}