{
  "ptid_time": "041_S_0679_2007-02-09",
  "img_path": "/data/qiuhui/data/adni/images/041_S_0679/2007-02-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,604 mm³, 44.7% below the reference mean. With a Z-score of -1.06 (14.4th percentile), this represents mild atrophy; hippocampal volume measures 8,431 mm³, 5.0% above the reference mean. With a Z-score of 0.50 (69.3th percentile), this represents normal volume ; whole brain volume measures 1,164,650 mm³, 2.7% above the reference mean. With a Z-score of 0.38 (64.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,778 mm³, 12.1% above the reference mean. With a Z-score of 0.84 (79.9th percentile), this represents normal volume ; fusiform gyrus volume measures 18,283 mm³, 8.2% below the reference mean. With a Z-score of -0.68 (24.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,218 mm³, 8.1% above the reference mean. With a Z-score of 0.66 (74.7th percentile), this represents normal volume . ",
  "text_data": "Age is 63.4 years. Gender is Male. Education: 18 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). The MMSE score of 30 is perfect, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T06:59:59.189252"
}