{
  "ptid_time": "007_S_4568_2012-09-17",
  "img_path": "/data/qiuhui/data/adni/images/007_S_4568/2012-09-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,589 mm³, 69.5% above the reference mean. With a Z-score of 1.59 (94.4th percentile), this represents moderate enlargement; whole brain volume measures 1,039,960 mm³, 6.7% above the reference mean. With a Z-score of 0.84 (80.1th percentile), this represents normal volume ; entorhinal cortex volume measures 2,714 mm³, 26.1% below the reference mean. With a Z-score of -1.60 (5.5th percentile), this represents moderate atrophy; fusiform gyrus volume measures 15,575 mm³, 8.5% below the reference mean. With a Z-score of -0.77 (22.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,810 mm³, 13.8% above the reference mean. With a Z-score of 1.20 (88.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 71.2 years. Gender is Female. Education: 16 years. MMSE: 25.0. MoCA: 23.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows moderate ventricular enlargement and significant entorhinal cortex atrophy, both of which are associated with Alzheimer's disease. The MMSE (25) and MoCA (23) scores suggest mild cognitive impairment, while the presence of one APOE4 allele increases Alzheimer's risk.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)** (likely prodromal Alzheimer's disease)  \n**Confidence:** **Medium** (clinical scores and imaging support MCI, but biomarker confirmation would strengthen the diagnosis).",
  "timestamp": "2025-07-25T22:03:08.161390"
}