{
  "ptid_time": "129_S_2332_2011-09-07",
  "img_path": "/data/qiuhui/data/adni/images/129_S_2332/2011-09-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,195 mm³, 56.6% below the reference mean. With a Z-score of -1.29 (9.8th percentile), this represents mild atrophy; hippocampal volume measures 7,297 mm³, 2.6% above the reference mean. With a Z-score of 0.24 (59.3th percentile), this represents normal volume ; whole brain volume measures 944,764 mm³, 3.1% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,338 mm³, 9.1% below the reference mean. With a Z-score of -0.56 (28.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,049 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 16,765 mm³, 12.5% below the reference mean. With a Z-score of -1.09 (13.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 71.0 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild atrophy in ventricular volume and middle temporal gyrus but normal hippocampal, whole brain, entorhinal cortex, and fusiform gyrus volumes. Cognitive scores (MMSE 29, MoCA 28) are within normal range, and APOE4-negative status reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy in some regions warrants monitoring, but cognitive performance is intact)",
  "timestamp": "2025-07-26T14:12:02.217692"
}