{
  "ptid_time": "033_S_0723_2008-02-20",
  "img_path": "/data/qiuhui/data/adni/images/033_S_0723/2008-02-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,874 mm³, 45.0% below the reference mean. With a Z-score of -1.31 (9.6th percentile), this represents mild atrophy; whole brain volume measures 943,712 mm³, 8.3% below the reference mean. With a Z-score of -1.09 (13.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 80.6 years. Gender is Male. Education: 12 years. MMSE: 26.0. Laboratory findings: Vitamin B12: 1142.00 (profound elevated); Total Bilirubin: 0.80 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows mild atrophy in both ventricular and whole brain volumes, with Z-scores indicating slightly below-average volumes for age. The MMSE score of 26 is within the normal range (24–30), and the absence of APOE4 reduces genetic risk. However, mild atrophy in an 80-year-old could be early neurodegenerative changes or normal aging.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy raises some concern, but cognitive scores and lack of APOE4 support normal aging)",
  "timestamp": "2025-07-26T05:14:06.302745"
}