{
  "ptid_time": "037_S_0501_2007-12-12",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0501/2007-12-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,176 mm³, 3.5% below the reference mean. With a Z-score of -0.08 (46.7th percentile), this represents normal volume ; whole brain volume measures 945,633 mm³, 12.4% below the reference mean. With a Z-score of -1.61 (5.4th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 79.4 years. Gender is Male. Education: 13 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.61, 5.4th percentile) but normal ventricular volume. Despite this structural change, cognitive performance (MMSE 29/30) is intact, and there is no APOE4 genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (Atrophy is notable, but clinical and genetic markers do not yet suggest impairment.)",
  "timestamp": "2025-07-26T06:30:43.520893"
}