{
  "ptid_time": "035_S_0997_2009-01-22",
  "img_path": "/data/qiuhui/data/adni/images/035_S_0997/2009-01-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,995 mm³, 27.0% below the reference mean. With a Z-score of -0.73 (23.3th percentile), this represents normal volume ; whole brain volume measures 737,892 mm³, 20.5% below the reference mean. With a Z-score of -2.46 (0.7th percentile), this represents significant atrophy. ",
  "text_data": "Age is 82.4 years. Gender is Female. Education: 20 years. MMSE: 22.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows significant whole brain atrophy (Z-score -2.46, 0.7th percentile) but normal ventricular volume. Combined with an MMSE score of 22 (borderline impaired) and advanced age, this suggests cognitive decline, though APOE4-negative status reduces Alzheimer's genetic risk.  \nDiagnosis: **MCI** (mild cognitive impairment)  \nConfidence: **Medium** (atrophy and MMSE support MCI, but lack of APOE4 or more severe deficits makes Alzheimer's less likely)",
  "timestamp": "2025-07-26T05:49:27.306795"
}