{
  "ptid_time": "016_S_4887_2013-04-30",
  "img_path": "/data/qiuhui/data/adni/images/016_S_4887/2013-04-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,909 mm³, 32.2% above the reference mean. With a Z-score of 0.77 (78.0th percentile), this represents normal volume ; hippocampal volume measures 5,267 mm³, 30.3% below the reference mean. With a Z-score of -2.96 (0.2th percentile), this represents significant atrophy; whole brain volume measures 1,003,710 mm³, 7.0% below the reference mean. With a Z-score of -0.91 (18.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,140 mm³, 23.4% below the reference mean. With a Z-score of -1.59 (5.6th percentile), this represents moderate atrophy; fusiform gyrus volume measures 19,733 mm³, 4.7% above the reference mean. With a Z-score of 0.40 (65.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,487 mm³, 4.0% below the reference mean. With a Z-score of -0.36 (36.0th percentile), this represents normal volume . ",
  "text_data": "Age is 74.3 years. Gender is Male. Education: 12 years. MMSE: 25.0. MoCA: 17.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.96, 0.2th percentile), and the entorhinal cortex has moderate atrophy (Z-score -1.59, 5.6th percentile), both key regions affected in Alzheimer's disease. The MoCA score of 17.0 indicates cognitive impairment, while the MMSE of 25.0 is borderline, suggesting early-stage decline.  \n\nDiagnosis: **Dementia (likely Alzheimer’s disease)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T00:30:06.482062"
}