{
  "ptid_time": "137_S_4466_2017-12-05",
  "img_path": "/data/qiuhui/data/adni/images/137_S_4466/2017-12-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 63,215 mm³, 34.5% above the reference mean. With a Z-score of 1.00 (84.2th percentile), this represents mild enlargement; hippocampal volume measures 6,399 mm³, 8.2% below the reference mean. With a Z-score of -0.71 (24.0th percentile), this represents normal volume ; whole brain volume measures 1,011,390 mm³, 1.7% below the reference mean. With a Z-score of -0.23 (41.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,179 mm³, 19.9% below the reference mean. With a Z-score of -1.30 (9.6th percentile), this represents mild atrophy; fusiform gyrus volume measures 16,938 mm³, 6.2% below the reference mean. With a Z-score of -0.54 (29.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,548 mm³, 8.0% below the reference mean. With a Z-score of -0.72 (23.5th percentile), this represents normal volume . ",
  "text_data": "Age is 85.8 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 21.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows mild ventricular enlargement and mild entorhinal cortex atrophy, while other brain volumes are within normal ranges. The MoCA score of 21 suggests mild cognitive impairment, but the MMSE score of 30 is normal, creating some discrepancy. The absence of APOE4 reduces Alzheimer's risk but does not rule out other causes of cognitive decline.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T16:32:44.997358"
}