{
  "ptid_time": "941_S_6068_2019-09-10",
  "img_path": "/data/qiuhui/data/adni/images/941_S_6068/2019-09-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,609 mm³, 12.7% below the reference mean. With a Z-score of -0.31 (38.0th percentile), this represents normal volume ; hippocampal volume measures 6,154 mm³, 18.6% below the reference mean. With a Z-score of -1.81 (3.5th percentile), this represents moderate atrophy; whole brain volume measures 999,017 mm³, 7.4% below the reference mean. With a Z-score of -0.97 (16.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,236 mm³, 21.1% below the reference mean. With a Z-score of -1.43 (7.6th percentile), this represents mild atrophy; fusiform gyrus volume measures 14,416 mm³, 23.5% below the reference mean. With a Z-score of -2.00 (2.3th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 16,874 mm³, 20.9% below the reference mean. With a Z-score of -1.88 (3.0th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 77.7 years. Gender is Male. Education: 12 years. MMSE: 26.0. MoCA: 21.0. Logical Memory: 1.0. APOEε4 alleles: 1.0. Biomarker levels: Flobetaben (FBB): 1.46 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The imaging data shows moderate atrophy in the hippocampus, fusiform gyrus, and middle temporal gyrus, along with mild atrophy in the entorhinal cortex—key regions affected in Alzheimer's disease. The MMSE (26) and MoCA (21) scores indicate mild cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \n\nDiagnosis: **MCI (likely due to Alzheimer’s pathology)**  \nConfidence: **Medium** (Clinical and imaging findings align with early Alzheimer’s, but biomarker confirmation would increase certainty.)",
  "timestamp": "2025-07-26T17:45:45.578535"
}