{
  "ptid_time": "021_S_0753_2007-03-15",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0753/2007-03-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 103,104 mm³, 243.4% above the reference mean. With a Z-score of 5.78 (100.0th percentile), this represents profound enlargement; whole brain volume measures 973,439 mm³, 14.2% below the reference mean. With a Z-score of -2.01 (2.2th percentile), this represents significant atrophy. ",
  "text_data": "Age is 66.0 years. Gender is Male. Education: 16 years. MMSE: 23.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (243.4% above mean, Z-score 5.78) and significant whole brain atrophy (14.2% below mean, Z-score -2.01), consistent with advanced neurodegeneration. The MMSE score of 23 (borderline impaired) and APOE4 homozygosity (high genetic risk) further support cognitive decline.  \n\nDiagnosis: **Dementia** (likely Alzheimer’s disease given APOE4 status and atrophy pattern)  \nConfidence: **High**",
  "timestamp": "2025-07-26T01:34:47.716987"
}