{
  "ptid_time": "031_S_0830_2008-03-24",
  "img_path": "/data/qiuhui/data/adni/images/031_S_0830/2008-03-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,410 mm³, 2.9% below the reference mean. With a Z-score of -0.07 (47.3th percentile), this represents normal volume ; whole brain volume measures 973,782 mm³, 9.8% below the reference mean. With a Z-score of -1.27 (10.2th percentile), this represents mild atrophy. ",
  "text_data": "Age is 72.3 years. Gender is Male. Education: 16 years. MMSE: 29.0. Laboratory findings: Creatine Kinase: 250.00 (profound elevated). APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is within normal limits, but the whole brain volume shows mild atrophy (10.2th percentile). Despite this, cognitive performance (MMSE 29/30) remains intact, and the APOE4 carrier status is a moderate risk factor but not definitive for impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild atrophy but preserved cognition)",
  "timestamp": "2025-07-26T04:38:21.530758"
}