{
  "ptid_time": "021_S_4276_2015-10-14",
  "img_path": "/data/qiuhui/data/adni/images/021_S_4276/2015-10-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,000 mm³, 3.3% above the reference mean. With a Z-score of 0.08 (53.0th percentile), this represents normal volume ; hippocampal volume measures 6,528 mm³, 8.2% below the reference mean. With a Z-score of -0.76 (22.5th percentile), this represents normal volume ; whole brain volume measures 973,213 mm³, 0.1% below the reference mean. With a Z-score of -0.02 (49.3th percentile), this represents normal volume . ",
  "text_data": "Age is 77.9 years. Gender is Female. Education: 12 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular, hippocampal, and whole brain) are within normal ranges, and cognitive scores (MMSE 30, MoCA 28) are intact. The presence of one APOE4 allele increases Alzheimer's risk but does not currently indicate impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:43:40.480927"
}