{
  "ptid_time": "057_S_0464_2007-06-13",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0464/2007-06-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 46,910 mm³, 0.2% below the reference mean. With a Z-score of -0.01 (49.7th percentile), this represents normal volume ; hippocampal volume measures 6,903 mm³, 0.9% below the reference mean. With a Z-score of -0.08 (46.8th percentile), this represents normal volume ; whole brain volume measures 979,925 mm³, 4.8% below the reference mean. With a Z-score of -0.63 (26.5th percentile), this represents normal volume ; entorhinal cortex volume measures 4,514 mm³, 13.7% above the reference mean. With a Z-score of 0.90 (81.6th percentile), this represents normal volume ; fusiform gyrus volume measures 18,435 mm³, 2.0% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,405 mm³, 6.1% above the reference mean. With a Z-score of 0.55 (70.8th percentile), this represents normal volume . ",
  "text_data": "Age is 84.1 years. Gender is Male. Education: 16 years. MMSE: 28.0. Logical Memory: 7.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 28 is within the normal range (≥26), and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:02:52.743305"
}