{
  "ptid_time": "041_S_4014_2011-12-02",
  "img_path": "/data/qiuhui/data/adni/images/041_S_4014/2011-12-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 58,472 mm³, 24.4% above the reference mean. With a Z-score of 0.71 (76.0th percentile), this represents normal volume ; whole brain volume measures 1,115,720 mm³, 8.4% above the reference mean. With a Z-score of 1.10 (86.5th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,168 mm³, 20.2% below the reference mean. With a Z-score of -1.32 (9.3th percentile), this represents mild atrophy; fusiform gyrus volume measures 23,575 mm³, 30.5% above the reference mean. With a Z-score of 2.64 (99.6th percentile), this represents significant enlargement; middle temporal gyrus volume measures 22,351 mm³, 10.8% above the reference mean. With a Z-score of 0.97 (83.4th percentile), this represents normal volume . ",
  "text_data": "Age is 81.2 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The entorhinal cortex shows mild atrophy (Z-score -1.32, 9.3th percentile), which is concerning for early neurodegenerative changes, but other brain regions are normal or enlarged. Cognitive scores (MMSE 28, MoCA 27) are intact, and APOE4-negative status reduces Alzheimer's risk.  \nDiagnosis: **Mild Cognitive Impairment (MCI)**  \nConfidence: **Medium** (Isolated entorhinal atrophy is suspicious, but cognitive performance remains high, and other regions are unaffected.)",
  "timestamp": "2025-07-26T07:09:27.617384"
}