{
  "ptid_time": "041_S_4004_2014-04-28",
  "img_path": "/data/qiuhui/data/adni/images/041_S_4004/2014-04-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,386 mm³, 40.5% above the reference mean. With a Z-score of 1.01 (84.5th percentile), this represents mild enlargement; hippocampal volume measures 6,865 mm³, 10.7% below the reference mean. With a Z-score of -1.20 (11.6th percentile), this represents mild atrophy; whole brain volume measures 996,273 mm³, 3.2% below the reference mean. With a Z-score of -0.40 (34.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,612 mm³, 7.2% below the reference mean. With a Z-score of -0.56 (28.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,714 mm³, 8.2% below the reference mean. With a Z-score of -0.93 (17.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,466 mm³, 10.0% below the reference mean. With a Z-score of -0.89 (18.7th percentile), this represents normal volume . ",
  "text_data": "Age is 69.8 years. Gender is Female. Education: 14 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The data shows mild hippocampal atrophy (Z-score -1.20) and mild ventricular enlargement (Z-score 1.01), but other brain regions are within normal ranges. Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele. The mild structural changes are not yet accompanied by cognitive decline.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (structural changes are present but not severe enough to indicate MCI or dementia, and cognition remains intact).",
  "timestamp": "2025-07-26T07:09:08.034521"
}