{
  "ptid_time": "036_S_4430_2014-02-05",
  "img_path": "/data/qiuhui/data/adni/images/036_S_4430/2014-02-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 57,902 mm³, 23.2% above the reference mean. With a Z-score of 0.67 (74.9th percentile), this represents normal volume ; hippocampal volume measures 3,827 mm³, 45.1% below the reference mean. With a Z-score of -3.90 (0.0th percentile), this represents profound atrophy; whole brain volume measures 920,541 mm³, 10.6% below the reference mean. With a Z-score of -1.38 (8.3th percentile), this represents mild atrophy. ",
  "text_data": "Age is 82.0 years. Gender is Male. Education: 15 years. MMSE: 18.0. MoCA: 16.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.27 SUVR (mild elevated); Amyloid beta: 630.90 pg/mL (mild reduced); Total tau: 576.20 pg/mL (profound elevated); Phosphorylated tau: 55.26 pg/mL (profound elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows profound hippocampal atrophy and mild whole brain atrophy, along with elevated tau biomarkers (T-tau and P-tau) and mildly reduced Aβ, which are consistent with Alzheimer's pathology. The cognitive scores (MMSE: 18, MoCA: 16) indicate significant cognitive impairment.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-26T06:13:31.321724"
}