{
  "ptid_time": "006_S_0675_2008-12-11",
  "img_path": "/data/qiuhui/data/adni/images/006_S_0675/2008-12-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,308 mm³, 1.8% below the reference mean. With a Z-score of -0.05 (48.1th percentile), this represents normal volume ; whole brain volume measures 794,837 mm³, 14.4% below the reference mean. With a Z-score of -1.72 (4.2th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 80.8 years. Gender is Female. Education: 18 years. MMSE: 25.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 2.24 SUVR (moderate elevated). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.72, 4.2th percentile) but normal ventricular volume. The MMSE score of 25 is borderline, but without significant cognitive complaints or functional impairment, this may not yet meet dementia criteria. APOE4-negative status reduces genetic risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-25T21:30:55.698717"
}