{
  "ptid_time": "018_S_4313_2013-12-12",
  "img_path": "/data/qiuhui/data/adni/images/018_S_4313/2013-12-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,555 mm³, 1.8% below the reference mean. With a Z-score of -0.04 (48.3th percentile), this represents normal volume ; hippocampal volume measures 7,788 mm³, 9.5% above the reference mean. With a Z-score of 0.87 (80.7th percentile), this represents normal volume ; whole brain volume measures 1,044,240 mm³, 7.1% above the reference mean. With a Z-score of 0.90 (81.6th percentile), this represents normal volume . ",
  "text_data": "Age is 79.0 years. Gender is Female. Education: 18 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 0.96 SUVR (normal ); Amyloid beta: 1338.00 pg/mL (normal ); Total tau: 161.50 pg/mL (normal ); Phosphorylated tau: 15.58 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures (ventricular, hippocampal, and whole brain) are all within normal ranges, with some even above the reference mean. Cognitive screening scores (MMSE 29, MoCA 25) are within normal limits for age, and biomarker data (Aβ, T-tau, P-tau, AV45) are normal, indicating no significant pathological changes.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T00:56:36.298360"
}