{
  "ptid_time": "098_S_0269_2010-04-17",
  "img_path": "/data/qiuhui/data/adni/images/098_S_0269/2010-04-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 67,101 mm³, 74.2% above the reference mean. With a Z-score of 1.78 (96.2th percentile), this represents moderate enlargement; hippocampal volume measures 4,548 mm³, 39.8% below the reference mean. With a Z-score of -3.89 (0.0th percentile), this represents profound atrophy; whole brain volume measures 921,972 mm³, 14.6% below the reference mean. With a Z-score of -1.89 (2.9th percentile), this represents moderate atrophy; entorhinal cortex volume measures 2,590 mm³, 36.8% below the reference mean. With a Z-score of -2.50 (0.6th percentile), this represents significant atrophy; fusiform gyrus volume measures 10,208 mm³, 45.8% below the reference mean. With a Z-score of -3.90 (0.0th percentile), this represents profound atrophy; middle temporal gyrus volume measures 14,467 mm³, 32.2% below the reference mean. With a Z-score of -2.89 (0.2th percentile), this represents significant atrophy. ",
  "text_data": "Age is 71.1 years. Gender is Male. Education: 16 years. MMSE: 16.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows profound atrophy in the hippocampus and fusiform gyrus, significant atrophy in the entorhinal cortex and middle temporal gyrus, and moderate whole-brain atrophy—all key regions affected in Alzheimer’s disease. The MMSE score of 16 indicates severe cognitive impairment, consistent with dementia.  \n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T10:40:23.916632"
}