{
  "ptid_time": "098_S_0172_2008-04-05",
  "img_path": "/data/qiuhui/data/adni/images/098_S_0172/2008-04-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,876 mm³, 47.0% below the reference mean. With a Z-score of -1.08 (14.1th percentile), this represents mild atrophy; hippocampal volume measures 7,769 mm³, 9.2% above the reference mean. With a Z-score of 0.84 (80.1th percentile), this represents normal volume ; whole brain volume measures 977,434 mm³, 0.3% above the reference mean. With a Z-score of 0.04 (51.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,589 mm³, 2.3% below the reference mean. With a Z-score of -0.14 (44.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,366 mm³, 3.8% below the reference mean. With a Z-score of -0.35 (36.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,661 mm³, 2.7% below the reference mean. With a Z-score of -0.23 (40.9th percentile), this represents normal volume . ",
  "text_data": "Age is 72.6 years. Gender is Female. Education: 18 years. MMSE: 27.0. Logical Memory: 13.0. Laboratory findings: Thyroid Stim. Hormone: 4.42 (significant elevated); GGT: 39.00 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild ventricular enlargement (mild atrophy) but otherwise normal hippocampal, whole brain, and regional cortical volumes. The MMSE score of 27 is within the normal range, and the absence of APOE4 alleles reduces genetic risk.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild ventricular enlargement warrants monitoring but is not strongly indicative of pathology given other normal findings)",
  "timestamp": "2025-07-26T10:38:50.273459"
}