{
  "ptid_time": "029_S_1073_2006-11-21",
  "img_path": "/data/qiuhui/data/adni/images/029_S_1073/2006-11-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,684 mm³, 16.4% below the reference mean. With a Z-score of -0.41 (34.1th percentile), this represents normal volume ; whole brain volume measures 931,792 mm³, 9.5% below the reference mean. With a Z-score of -1.18 (11.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 65.7 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Gastrointestinal; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 27.0. Logical Memory: 8.0. APOEε4 alleles: 1.0. Biomarker levels: Amyloid beta: 657.90 pg/mL (normal ); Total tau: 643.70 pg/mL (profound elevated); Phosphorylated tau: 69.63 pg/mL (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy but normal ventricular volume. MMSE is within normal range (27/30), but biomarkers indicate profound elevation in T-tau and P-tau, which are strongly associated with Alzheimer's pathology despite normal Aβ.  \nDiagnosis: **MCI** (mild cognitive impairment, likely due to underlying Alzheimer's pathology)  \nConfidence: **Medium** (MMSE is borderline normal, but tau biomarkers strongly suggest neurodegeneration)",
  "timestamp": "2025-07-26T04:21:36.508046"
}