{
  "ptid_time": "072_S_4063_2011-12-19",
  "img_path": "/data/qiuhui/data/adni/images/072_S_4063/2011-12-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 6,751 mm³, 63.7% below the reference mean. With a Z-score of -1.82 (3.4th percentile), this represents moderate atrophy; hippocampal volume measures 6,968 mm³, 10.8% below the reference mean. With a Z-score of -1.50 (6.7th percentile), this represents mild atrophy; whole brain volume measures 917,217 mm³, 11.9% below the reference mean. With a Z-score of -1.42 (7.8th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,304 mm³, 10.6% below the reference mean. With a Z-score of -0.83 (20.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,582 mm³, 10.0% below the reference mean. With a Z-score of -0.91 (18.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,171 mm³, 21.2% below the reference mean. With a Z-score of -1.75 (4.0th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 59.7 years. Gender is Female. Education: 13 years. MMSE: 29.0. MoCA: 23.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows moderate atrophy in the ventricles and middle temporal gyrus, mild atrophy in the hippocampus and whole brain, and normal volumes in the entorhinal cortex and fusiform gyrus. The MoCA score of 23 suggests mild cognitive impairment, while the MMSE of 29 is within normal limits. The absence of APOE4 reduces genetic risk but does not rule out neurodegeneration.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to mixed imaging findings and borderline cognitive scores)",
  "timestamp": "2025-07-26T09:16:22.229283"
}