{
  "ptid_time": "072_S_0315_2012-04-10",
  "img_path": "/data/qiuhui/data/adni/images/072_S_0315/2012-04-10/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,554 mm³, 12.9% below the reference mean. With a Z-score of -0.31 (37.9th percentile), this represents normal volume ; hippocampal volume measures 8,132 mm³, 7.6% above the reference mean. With a Z-score of 0.74 (77.0th percentile), this represents normal volume ; whole brain volume measures 1,108,040 mm³, 2.7% above the reference mean. With a Z-score of 0.34 (63.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,140 mm³, 1.0% above the reference mean. With a Z-score of 0.07 (52.6th percentile), this represents normal volume ; fusiform gyrus volume measures 15,847 mm³, 15.9% below the reference mean. With a Z-score of -1.35 (8.8th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,285 mm³, 9.6% below the reference mean. With a Z-score of -0.87 (19.3th percentile), this represents normal volume . ",
  "text_data": "Age is 77.5 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 23.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mostly normal measurements, with only mild atrophy in the fusiform gyrus. The MMSE score of 30 is normal, but the MoCA score of 23 suggests possible mild cognitive impairment (MCI). The absence of APOE4 reduces genetic risk for Alzheimer's.  \n**Diagnosis:** MCI  \n**Confidence:** Medium",
  "timestamp": "2025-07-26T09:07:45.246091"
}