{
  "ptid_time": "127_S_0844_2006-11-09",
  "img_path": "/data/qiuhui/data/adni/images/127_S_0844/2006-11-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 75,662 mm³, 104.7% above the reference mean. With a Z-score of 2.83 (99.8th percentile), this represents significant enlargement; whole brain volume measures 855,069 mm³, 7.9% below the reference mean. With a Z-score of -0.95 (17.2th percentile), this represents normal volume . ",
  "text_data": "Age is 85.3 years. Gender is Female. Education: 12 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Malignancy; Major Surgical Procedures. MMSE: 22.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The significant ventricular enlargement (Z-score 2.83) suggests substantial atrophy, while the whole brain volume is within normal limits (Z-score -0.95). The MMSE score of 22 indicates mild cognitive impairment, and the absence of APOE4 reduces genetic risk but does not rule out neurodegeneration given the age and imaging findings.  \nDiagnosis: Dementia  \nConfidence: Medium",
  "timestamp": "2025-07-26T13:03:23.287432"
}