{
  "ptid_time": "037_S_0627_2006-07-06",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0627/2006-07-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,512 mm³, 47.7% above the reference mean. With a Z-score of 1.37 (91.4th percentile), this represents mild enlargement; whole brain volume measures 907,606 mm³, 12.8% below the reference mean. With a Z-score of -1.53 (6.3th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 58.4 years. Gender is Female. Education: 12 years. MMSE: 23.0. Logical Memory: 0.0. APOEε4 alleles: 2.0. Biomarker levels: Amyloid beta: 494.80 pg/mL (mild reduced); Total tau: 745.70 pg/mL (profound elevated); Phosphorylated tau: 94.86 pg/mL (profound elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows moderate whole brain atrophy and mild ventricular enlargement, along with profoundly elevated tau levels (both T-tau and P-tau) and mildly reduced Aβ, consistent with Alzheimer's pathology. The MMSE score of 23 suggests cognitive impairment, and the presence of two APOE4 alleles increases Alzheimer's risk.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:34:42.092063"
}