{
  "ptid_time": "007_S_0041_2008-11-12",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0041/2008-11-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 49,536 mm³, 76.5% above the reference mean. With a Z-score of 1.75 (96.0th percentile), this represents moderate enlargement; whole brain volume measures 952,495 mm³, 2.3% below the reference mean. With a Z-score of -0.29 (38.7th percentile), this represents normal volume . ",
  "text_data": "Age is 73.9 years. Gender is Female. Education: 14 years. MMSE: 23.0. Logical Memory: 0.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (76.5% above reference mean, Z-score 1.75), suggesting atrophy, while whole brain volume is only slightly reduced (2.3% below reference mean, Z-score -0.29). The MMSE score of 23.0 is below the typical cutoff of 24-26 for normal cognition, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: **Dementia** (likely Alzheimer's disease)  \nConfidence: **Medium** (imaging and genetic risk strongly support, but clinical correlation with additional cognitive tests would strengthen confidence)",
  "timestamp": "2025-07-25T21:43:37.328692"
}