{
  "ptid_time": "011_S_0021_2006-04-24",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0021/2006-04-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 13,898 mm³, 50.5% below the reference mean. With a Z-score of -1.16 (12.4th percentile), this represents mild atrophy; whole brain volume measures 974,287 mm³, 0.0% below the reference mean. With a Z-score of -0.00 (49.8th percentile), this represents normal volume . ",
  "text_data": "Age is 73.1 years. Gender is Female. Education: 18 years. MMSE: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild atrophy, but whole brain volume is normal. The MMSE score of 29 is within the normal range, and there are no significant genetic risk factors (APOE4 negative).  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild ventricular atrophy could warrant monitoring, but current cognitive and structural findings suggest normal aging)",
  "timestamp": "2025-07-25T22:39:33.346510"
}