{
  "ptid_time": "037_S_0566_2013-08-05",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0566/2013-08-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 54,463 mm³, 15.8% above the reference mean. With a Z-score of 0.46 (67.7th percentile), this represents normal volume ; hippocampal volume measures 3,209 mm³, 53.9% below the reference mean. With a Z-score of -4.66 (0.0th percentile), this represents profound atrophy; whole brain volume measures 878,311 mm³, 14.7% below the reference mean. With a Z-score of -1.92 (2.7th percentile), this represents moderate atrophy; entorhinal cortex volume measures 1,450 mm³, 63.5% below the reference mean. With a Z-score of -4.15 (0.0th percentile), this represents profound atrophy; fusiform gyrus volume measures 14,444 mm³, 20.0% below the reference mean. With a Z-score of -1.74 (4.1th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 14,846 mm³, 26.4% below the reference mean. With a Z-score of -2.37 (0.9th percentile), this represents significant atrophy. ",
  "text_data": "Age is 85.8 years. Gender is Male. Education: 20 years. MMSE: 17.0. MoCA: 8.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows profound atrophy in the hippocampus and entorhinal cortex, along with significant atrophy in the middle temporal gyrus and moderate whole-brain atrophy. These findings are strongly indicative of neurodegeneration, particularly Alzheimer's disease. The low MMSE (17) and MoCA (8) scores further support significant cognitive impairment.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:33:35.230985"
}