{
  "ptid_time": "070_S_6229_2018-03-01",
  "img_path": "/data/qiuhui/data/adni/images/070_S_6229/2018-03-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,777 mm³, 0.7% above the reference mean. With a Z-score of 0.02 (50.6th percentile), this represents normal volume ; whole brain volume measures 926,515 mm³, 14.2% below the reference mean. With a Z-score of -1.84 (3.3th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 79.9 years. Gender is Male. Education: 18 years. Handedness: Right. Race: White. MMSE: 28.0. MoCA: 19.0. Logical Memory: 5.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.02 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The patient shows moderate whole brain atrophy (Z-score -1.84, 3.3rd percentile) but normal ventricular volume. Cognitive testing reveals a significant discrepancy between MMSE (28, normal) and MoCA (19, impaired), suggesting possible executive or visuospatial deficits typical of MCI. The absence of APOE4 reduces Alzheimer's risk but doesn't rule it out.  \n\n**Diagnosis:** **MCI** (mild cognitive impairment)  \n**Confidence:** **Medium** (due to conflicting MMSE/MoCA scores and lack of biomarker data)",
  "timestamp": "2025-07-26T09:05:56.895475"
}