{
  "ptid_time": "067_S_4728_2013-05-31",
  "img_path": "/data/qiuhui/data/adni/images/067_S_4728/2013-05-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 105,048 mm³, 123.4% above the reference mean. With a Z-score of 3.59 (100.0th percentile), this represents profound enlargement; whole brain volume measures 891,249 mm³, 13.4% below the reference mean. With a Z-score of -1.76 (4.0th percentile), this represents moderate atrophy; entorhinal cortex volume measures 2,063 mm³, 48.0% below the reference mean. With a Z-score of -3.14 (0.1th percentile), this represents profound atrophy; fusiform gyrus volume measures 10,821 mm³, 40.1% below the reference mean. With a Z-score of -3.47 (0.0th percentile), this represents profound atrophy; middle temporal gyrus volume measures 14,246 mm³, 29.4% below the reference mean. With a Z-score of -2.63 (0.4th percentile), this represents significant atrophy. ",
  "text_data": "Age is 82.9 years. Gender is Male. Education: 16 years. Handedness: Unknown. Race: Unknown. MMSE: 13.0. MoCA: 9.0. Logical Memory: 1.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows profound ventricular enlargement and significant atrophy in key Alzheimer's-related regions (entorhinal cortex, fusiform gyrus, middle temporal gyrus), alongside severe cognitive impairment (MMSE 13, MoCA 9). These findings are consistent with advanced neurodegeneration.  \n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:39:46.815229"
}