{
  "ptid_time": "126_S_0784_2006-10-05",
  "img_path": "/data/qiuhui/data/adni/images/126_S_0784/2006-10-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,794 mm³, 15.2% below the reference mean. With a Z-score of -0.35 (36.4th percentile), this represents normal volume ; whole brain volume measures 924,107 mm³, 5.2% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume . ",
  "text_data": "Age is 75.8 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 23.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 476.10 pg/mL (mild reduced); Total tau: 153.50 pg/mL (mild reduced); Phosphorylated tau: 13.46 pg/mL (mild reduced). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, though slightly below the reference mean. The MMSE score of 23 suggests mild cognitive impairment, and the biomarker profile (mildly reduced Aβ, T-tau, and P-tau) does not strongly support Alzheimer's pathology.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T12:40:06.152059"
}